Measuring system of wearable device

Abstract

The utility model relates to a measuring system of a wearable device. The measuring system comprises the wearable device, a bearing plate, at least one movable device, at least one light emitting unit and at least one light sensing unit, the light emitting unit is used for generating detection light, and the detection light is used for being projected to a detected body and generating diffuse reflection light. The movable device is arranged on the bearing plate, the light emitting unit is arranged on the movable device, and the movable device is used for driving the light emitting unit to move relative to the bearing plate and projecting the generated detection light to different areas of the detected body. The light sensing unit is used for receiving the diffuse reflection light of different areas, a plurality of diffuse reflection light received by the light sensing unit can be further analyzed, and one of the diffuse reflection light is found out for operation, so that the accuracy of the physiological parameters detected by the measuring system of the wearable device is improved.

Description

Technical Field

[0001] This utility model relates to a measurement system for a wearable device, which can measure the physiological parameters of a subject quickly and accurately in a non-invasive manner. Background Technology

[0002] With increasing awareness of health, many wearable devices have emerged on the market to measure users' physiological parameters, such as smartwatches, smart bracelets, and smart neckbands. These wearable devices can measure and record various physiological parameters such as blood pressure, blood oxygen, heart rate, blood sugar, and / or body temperature. They can also store the measured physiological parameter data or transmit it to a smartphone for long-term monitoring of the user's health status, which is beneficial for doctors to understand the user's physiological condition.

[0003] When a user's physiological parameters become abnormal, the wearable device or smartphone can also issue an alert signal or transmit the alert information to relevant contacts, such as medical personnel, via the network to reduce the risk of accidents to the user.

[0004] Although wearable devices have advantages such as being lightweight and small, and are convenient for users to wear for extended periods, most wearable devices on the market currently suffer from inaccurate measurement of physiological parameters.

[0005] Specifically, the wearable device mainly uses a light-emitting unit to project a detection light onto the user's (subject's) skin, allowing the detection light to penetrate the skin's deeper layers and be projected onto blood vessels. Then, a light-sensing unit senses the diffuse reflected and scattered light from the blood vessels to determine how much of the spectrum is absorbed, reflected, or refracted, and uses algorithms to calculate the user's physiological parameters.

[0006] However, when the detection light fails to reach the major blood vessels in the skin's deeper layers, it often causes errors in the measured physiological parameters, thereby reducing the accuracy of assessing the user's physical condition. Utility Model Content

[0007] Therefore, this utility model proposes a measurement system for a wearable device, which can project the generated detection light onto different areas of the subject and find a more accurate diffuse reflection light for calculation, so as to improve the accuracy of the physiological parameters measured by the wearable device measurement system.

[0008] One objective of this invention is to provide a measurement system for a wearable device, mainly comprising a support plate, a movable device, a light emitting unit, and a light sensing unit, wherein the light emitting unit and / or the light sensing unit are disposed on the movable device. The movable device can be used to drive the light emitting unit and / or the light sensing unit to move relative to the support plate, so that the detection light generated by the light emitting unit can be projected onto different areas of the subject, and measurements can be performed on different areas respectively, which helps to improve the accuracy of the measured physiological parameters.

[0009] To achieve the above objectives, this utility model provides a measurement system for a wearable device, comprising: a wearable device; a support plate disposed on the wearable device; at least one light emitting unit for generating a detection light, wherein the detection light is projected onto a test object and generates diffuse reflection light; at least one movable device disposed on the support plate, including a slide rail and a slide block, the slide block being movable along the slide rail, and the light emitting unit being disposed on the slide block, the movable device being used to drive the light emitting unit to move relative to the support plate, thereby changing the position of the detection light projected onto the test object; at least one light sensing unit for receiving diffuse reflection light; and a power supply unit connected to the light emitting unit and the light sensing unit, and used to provide a driving power supply to the light emitting unit and the light sensing unit.

[0010] In at least one embodiment of the measurement system of the wearable device of the present invention, the light sensing unit is disposed on the slide of the movable device, such that the light emitting unit and the light sensing unit maintain the same distance, and the movable device is used to drive the light emitting unit and the light sensing unit to move relative to the support plate.

[0011] In at least one embodiment of the measurement system of the wearable device of the present invention, the photosensitive unit is disposed at a fixed position on the carrier plate, and the movable device is used to drive the relative displacement of the light emitting unit with respect to the photosensitive unit on the carrier plate, thereby changing the distance between the light emitting unit and the photosensitive unit.

[0012] In at least one embodiment of the measurement system of the wearable device of the present invention, the slide rail is a straight line, an arc, a ring, a partial ring, or a combination thereof.

[0013] In at least one embodiment of the measurement system of the wearable device of the present invention, the light emitting unit includes a plurality of light sources with different wavelengths.

[0014] In at least one embodiment of the measurement system of the wearable device described in this utility model, the slide can be connected to a driving unit, and the driving unit can drive the slide to multiple specific positions on the slide rail.

[0015] In at least one embodiment of the measurement system of the wearable device of the present invention, a barrier wall is provided between the light emitting unit and the light sensing unit to prevent the detection light generated by the light emitting unit from directly illuminating the light sensing unit.

[0016] In at least one embodiment of the measurement system of the wearable device of the present invention, the support plate is a planar support plate or a non-planar support plate.

[0017] This utility model provides another measurement system for a wearable device, comprising: a wearable device; a carrier plate disposed on the wearable device; at least one light emitting unit for generating a detection light, wherein the detection light is projected onto a test object and generates diffuse reflection light; at least one light sensing unit for receiving diffuse reflection light; a power supply unit connected to the light emitting unit and the light sensing unit, and for providing a driving power supply to the light emitting unit and the light sensing unit; and a first movable device disposed on the carrier plate, comprising a first slide rail and a first slide block, the first slide block being movable along the first slide rail, and the light sensing unit being disposed on the first slide block, the first slide block being used to drive the light sensing unit to move relative to the carrier plate, thereby changing the diffuse reflection light received by the light sensing unit from different positions of the test object.

[0018] In at least one embodiment of the measurement system of the wearable device of the present invention, the light emitting unit is disposed on the support plate, and the first slide is used to drive the light sensing unit to move relative to the light emitting unit, so as to change the distance between the light emitting unit and the light sensing unit.

[0019] In at least one embodiment of the measurement system of the wearable device of the present invention, the first slide rail is a straight line, an arc, a ring, or a partial ring.

[0020] In at least one embodiment of the measurement system of the wearable device of the present invention, a second movable device is disposed on the support plate, including a second slide rail and a second slide block. The second slide block can be displaced along the second slide rail, and the light emitting unit is disposed on the second slide block and is driven to displace relative to the support plate by the second slide block.

[0021] In at least one embodiment of the measurement system of the wearable device of the present invention, there is at least one driving unit. The driving unit can be connected to the first movable device and the second movable device, and can cause the first sliding seat to move to different specific positions of the first slide rail, and the second sliding seat to move to different specific positions of the second slide rail.

[0022] In at least one embodiment of the measurement system of the wearable device of the present invention, the second slide rail may be arranged around the periphery of the first slide rail.

[0023] In at least one embodiment of the measurement system of the wearable device of the present invention, the drive unit can control the first movable device and the second movable device to move synchronously or asynchronously relative to each other.

[0024] In at least one embodiment of the measurement system of the wearable device of the present invention, the driving unit includes a microprocessor for controlling the position or speed of the first movable device and the second movable device.

[0025] The measurement system of the wearable device described in this utility model has the following advantages: by moving the light emitting unit and / or light sensing unit through the movable device, and measuring different positions of the subject, the physiological parameters of the subject can be measured quickly and accurately. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a schematic diagram of the structure of a measurement system of the wearable device of this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of a measurement system of the wearable device of this utility model.

[0029] Figure 3 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0030] Figure 4 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0031] Figure 5 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0032] Figure 6 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0033] Figure 7 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0034] Figure 8 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0035] Figure 9 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0036] Figure 10 This is a schematic diagram of another embodiment of the measurement system of the wearable device of this utility model.

[0037] Figure 11 This is a side view of another embodiment of the measurement system of the wearable device of this utility model.

[0038] Figure 12 This is a side view of another embodiment of the measurement system of the wearable device of this utility model.

[0039] Figure 13 This is a side view of another embodiment of the measurement system of the wearable device of this utility model.

[0040] Figure 14 This is a schematic diagram of another embodiment of the wearable device with a measurement system according to the present invention.

[0041] Figure 15 This is a schematic diagram of another embodiment of the wearable device with a measurement system according to the present invention.

[0042] Explanation of reference numerals in the attached figures

[0043] 10: Measurement system for wearable devices

[0044] 11: Support plate

[0045] 121: First position

[0046] 123: Second position

[0047] 13: Light emitting unit

[0048] 14: Retaining wall

[0049] 15: Light sensing unit

[0050] 17: Movable device

[0051] 171: Slide rail

[0052] 173: Slide

[0053] 18: Power Supply Unit

[0054] 19: Drive Unit

[0055] 20: Wearable devices

[0056] 21: Table Body

[0057] 23: Watch strap

[0058] 30: Measurement system for wearable devices

[0059] 31: Support plate

[0060] 321: First position

[0061] 323: Second position

[0062] 325: Third position

[0063] 327: Fourth position

[0064] 329: Fifth position

[0065] 33: Light emitting unit

[0066] 34: Retaining wall

[0067] 35: Light sensing unit

[0068] 37: Movable device

[0069] 371: Slide rail

[0070] 373: Slide

[0071] 39: Drive Unit

[0072] 40: Measurement system for wearable devices

[0073] 41: Support plate

[0074] 43: Light emitting unit

[0075] 44: Retaining wall

[0076] 45: Light sensing unit

[0077] 471: First movable device

[0078] 4711: First slide rail

[0079] 4713: First slide

[0080] 473: Second movable device

[0081] 4731: Second slide rail

[0082] 4733: Second slide

[0083] 49: Drive Unit

[0084] 495: Microprocessor

[0085] 50: Wearable devices

[0086] d1: First distance

[0087] d2: Second distance

[0088] d3: Third distance

[0089] d4: Fourth distance

[0090] d5: Fifth distance

[0091] X: First direction

[0092] Y: Second direction

[0093] L1: Detection light

[0094] L2: Diffuse light

[0095] L3: Detection light. Detailed Implementation

[0096] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0097] Please see Figure 1 and Figure 2 These are schematic diagrams illustrating the construction of a wearable device with a measurement system according to the present invention, and an embodiment of the measurement system of the wearable device. The measurement system 10 of the wearable device according to the present invention can be disposed within a wearable device 20, which can be, for example, but is not limited to, a smartwatch, and the measurement system 10 can be disposed on the watch body 21 of the wearable device 20.

[0098] The measurement system 10 of the wearable device includes at least one carrier plate 11, at least one light emitting unit 13, at least one photo detector 15 and a movable device 17, wherein the light emitting unit 13 and / or the photo detector 15 are mounted on the carrier plate 11 through the movable device 17, so that the light emitting unit 13 and / or the photo detector 15 can be displaced relative to the carrier plate 11.

[0099] The carrier plate 11 is used to support the movable device 17, the light emitting unit 13 and the light sensing unit 15. For example, the carrier plate 11 includes, but is not limited to, circuit boards, glass substrates, organic resin substrates or wafers.

[0100] The movable device 17 is mounted on the support plate 11. In one embodiment of this utility model, the movable device 17 includes a slide rail 171 and a slide block 173, wherein the slide block 173 is mounted on the slide rail 171 and can move along the slide rail 171. The movable device 17 including the slide rail 171 and the slide block 173 is only one embodiment of this utility model and is not limited to the protection scope of this utility model. For example, the movable device 17 can be a linkage or a robotic arm, etc.

[0101] In one embodiment of this utility model, such as Figure 2As shown, both the light emitting unit 13 and the light sensing unit 15 are mounted on the movable device 17, and the movable device 17 drives the light emitting unit 13 and the light sensing unit 15 to move relative to the support plate 11. For example, the light emitting unit 13 and the light sensing unit 15 are mounted on the same slide 173, so that the light emitting unit 13 and the light sensing unit 15 maintain a fixed relative position and the same distance, and the slide 173 drives the light sensing unit 15 and the light emitting unit 13 to move along the slide rail 171. When the light emitting unit 13 and the light sensing unit 15 move relative to the support plate 11 along the slide rail 171, the distance between them will remain constant, and the physiological parameters of the subject can be calculated using general algorithms.

[0102] In practical applications, the light emitting unit 13 and the light sensing unit 15 can be located at the first position 121. The light emitting unit 13 at the first position 121 generates a detection light L1 which is projected onto a first area of ​​the test object, such as the limbs or neck of a human body. In different embodiments, the test object can also be an animal, plant, or food other than a human body, such as meat, eggs, or vegetables, and the quality of the food can be detected by the light sensing device 10.

[0103] Part of the detection light L1 may be reflected or scattered by the surface of the first region of the test object, while part of the detection light may enter the interior of the test object and be absorbed, reflected, or scattered by the internal tissues of the test object, such as by blood vessels in the first region of the test object. The light reflected and scattered by the surface and internal tissues of the test object can be defined as diffuse reflection light L2, and the diffuse reflection light L2 of the first region can be received by the photosensitive unit 15.

[0104] In addition, the light emitting unit 13 and the light sensing unit 15 can be moved to the second position 123 along the slide rail 171 via the slide block 173. The light emitting unit 13 at the second position 123 projects the detection light L1 onto the second region of the test object, while the light sensing unit 15 receives the diffuse reflected light L2 from the second region.

[0105] The first position 121 and the second position 123 mentioned above are different, and the first region of the test object is also different from the second region. In other words, by setting the movable device 17, the present invention can make the light emitting unit 13 project the detection light L1 onto different regions of the test object, and the light sensing unit 15 sense the diffuse reflected light L2 of different regions of the test object.

[0106] As described in the prior art, when the detection light fails to be projected onto the correct area of ​​the subject, such as the major blood vessels in the skin layer, the measured physiological parameters may be inaccurate.

[0107] Compared to existing technologies, the light emitting unit 13 and / or the light sensing unit 15 of this invention are connected to the carrier plate 11 via a movable device 17, and the projection area of ​​the detection light L1 generated by the light emitting unit 13 can be changed. Specifically, the light emitting unit 13 can be displaced relative to the carrier plate 11 and the test object, projecting the detection light L1 onto different areas of the test object at different times, and receiving different diffuse reflection light L2 from different areas of the test object through the light sensing unit 15. The multiple diffuse reflection lights L2 received by the light sensing unit 15 can then be further analyzed, and a more accurate diffuse reflection light L2 can be identified, such as the strongest diffuse reflection light L2 or the diffuse reflection light L2 that detects the strongest vascular pulsation, to improve the accuracy of the detection results.

[0108] In one embodiment of this utility model, the movable device 17 can be connected to a driving unit 19, and the driving unit 19 can drive the light emitting unit 13 and / or the light sensing unit 15 to move relative to the support plate 11 and / or the test object. For example, the slide 173 of the movable device 17 can be connected to a motor or a cylinder, and the motor or cylinder can drive the slide 173 to move relative to the slide rail 171, so that the light emitting unit 13 and / or the light sensing unit 15 move along the slide rail 171.

[0109] The light emitting unit 13 and the light sensing unit 15 can be connected to a power supply unit 18, wherein the power supply unit 18 is used to provide driving power to the light emitting unit 13 and the light sensing unit 15, so that the light emitting unit 13 can generate detection light L1, and the light sensing unit 15 can be used to sense diffuse reflection light L2. For example, the power supply unit 18 can supply power to the light emitting unit 13 and the light sensing unit 15 along the slide rail 171 of the movable device 17.

[0110] like Figure 2 As shown, the slide rail 171 of the movable device 17 can be arranged along a straight track in the first direction X, while the slide block 173, the light emitting unit 13 and the light sensing unit 15 can be displaced relative to the slide rail 171 and the support plate 11 in the first direction X.

[0111] like Figure 3 The diagram shown is a structural schematic of another embodiment of the present invention. The slide rail 171 of the movable device 17 can be a straight track arranged along the second direction Y, wherein the second direction Y is perpendicular to the first direction X. For example, the first direction X and the second direction Y are two mutually perpendicular directions parallel to the surface of the support plate 11. The slide block 173, the light emitting unit 13, and the light sensing unit 15 can be displaced relative to the slide rail 171 and the support plate 11 along the second direction Y.

[0112] In another embodiment of this utility model, such as Figure 4As shown, the slide rail 171 of the movable device 17 can be an arc-shaped, annular, or partially annular track disposed on the surface of the support plate 11. The light emitting unit 13 and the light sensing unit 15 are disposed on the same slide block 173 and connected to the slide rail 171 through the slide block 173. In practical applications, the light emitting unit 13 and the light sensing unit 15 can be displaced along the slide rail 171 to change the area of ​​the test object projected by the detection light L1. During the displacement process, the distance between the light emitting unit 13 and the light sensing unit 15 remains constant.

[0113] In another embodiment of this utility model, such as Figure 5 As shown, the slide rail 171 of the (first) movable device 17 can be an arc-shaped, annular, or partially annular track disposed on the surface of the support plate 11, wherein the light emitting unit 13 is disposed on the slide base 173, and the light sensing unit 15 is disposed at a fixed position on the support plate 11. In practical applications, the light emitting unit 13 can be displaced along the slide rail 171, changing the area to which the detection light L1 is projected onto the test object. During the displacement process, the distance between the light emitting unit 13 and the light sensing unit 15 remains constant. For example, the slide rail 171 can be annular, wherein the light emitting unit 13 is connected to the slide rail 171 through the slide base 173, and the light sensing unit 15 is disposed on the support plate 11 and located at the center of the annular slide rail 171. In different embodiments, the light sensing unit 15 can also be disposed on the slide base 173, and the light emitting unit 13 can be disposed at the center of the annular slide rail 171.

[0114] In the accompanying drawings of the above embodiments of this utility model, the light emitting unit 13 and / or the light sensing unit 15 will move along the slide rail 171 to the first position 121 and the second position 123, and detect and / or measure the object under test. In practical applications, the positions where the light emitting unit 13 and / or the light sensing unit 15 moves along the slide rail 171 and performs detection are not limited to two. There can be more than two detection positions. For example, the slide block 173 can drive the light emitting unit 13 and / or the light sensing unit 15 to move along the slide rail 171 to any position for measurement, and find a more accurate diffuse reflection light L2, such as the diffuse reflection light L2 with the strongest intensity or the diffuse reflection light L2 that detects the strongest vascular pulsation, so as to improve the accuracy of the detection results.

[0115] In another embodiment of this utility model, the measurement system 10 of the wearable device may include a barrier 14, wherein the barrier 14 may be made of an opaque material and is used to separate the light emitting unit 13 and the light sensing unit 15, so as to prevent the light source (e.g., detection light L1) generated and emitted by the light emitting unit 13 from directly illuminating the light sensing unit 15. Figure 2 , Figure 3 and Figure 4As shown, the baffle 14 can be mounted on the slide 173 and surround the light emitting unit 13 and / or the light sensing unit 15 to prevent the detection light L1 generated by the light emitting unit 13 from being directly projected onto the light sensing unit 15. Figure 5 As shown, the barrier 14 can be disposed on the support plate 11 and surround the photosensitive unit 15.

[0116] Please see Figure 6 This is a schematic diagram illustrating the construction of another embodiment of the measurement system of the wearable device of this utility model. The measurement system 30 of the wearable device of this utility model can be disposed within a wearable device 20 and includes at least a support plate 31, a light emitting unit 33, a light sensing unit 35, and a movable device 37. The light emitting unit 33 (or light sensing unit 35) is disposed on the support plate 31 via the movable device 37, while the light sensing unit 35 (or light emitting unit 33) is disposed at a fixed position on the support plate 31, so that the light emitting unit 33 or the light sensing unit 35 can be displaced relative to the support plate 31. This changes the distance between the light emitting unit 33 and the light sensing unit 35 to obtain diffuse reflection light L2 data at different distances.

[0117] In this embodiment of the present invention, the photosensitive unit 35 is disposed on the support plate 31, while the photoemitting unit 33 is disposed on the slide 373 of the movable device 37. The movable device 37 is used to drive the photoemitting unit 33 to move relative to the photosensitive unit 35 on the support plate 31 and change the distance between the photoemitting unit 33 and the photosensitive unit 35. Specifically, the photoemitting unit 33 is connected to the slide rail 371 through the slide 373, and the slide 373 drives the photoemitting unit 33 to move relative to the photosensitive unit 35 along the slide rail 371, so that the detection light L1 generated by the photoemitting unit 33 can be projected onto different areas of the test object.

[0118] The movable device 37 can be connected to a drive unit 39, and the drive unit 39 drives the slide block 373 and the light emitting unit 33 to move relative to the support plate 31 and the photosensitive unit 35 along the slide rail 371. Specifically, depending on the type of physiological parameter that the measurement system 30 of the wearable device wants to measure, the drive unit 39 can drive the light emitting unit 33 to move to multiple specific positions, for example... Figure 6 The first position 321, the second position 323, the third position 325 and / or the fourth position 327 shown, or Figure 7 The first position is 321 and the fifth position is 329.

[0119] In one embodiment of the present invention, when the blood oxygen of the subject is measured by the measurement system 30 of the wearable device, the driving unit 39 can drive the light emitting unit 33 to move to the first position 321, the second position 323, the third position 325 and the fourth position 327, wherein the light sensing unit 35 and the light emitting unit 33 at the first position 321, the second position 323, the third position 325 and / or the fourth position 327 are respectively separated by a first distance d1, a second distance d2, a third distance d3 and a fourth distance d4.

[0120] The first distance d1, the second distance d2, the third distance d3, and the fourth distance d4 are different, with the fourth distance d4 > the third distance d3 > the second distance d2 > the first distance d1. For example, the first distance d1 is 6mm, the second distance d2 is 8mm, the third distance d3 is 10mm, and the fourth distance d4 is 14mm. The absorption coefficient and scattering coefficient are determined by the proportion of diffuse reflected light L2 at different distances (d1, d2, d3, d4), and the blood oxygen of the test subject can be calculated.

[0121] In another embodiment of this invention, when measuring the blood glucose level of a subject using the measurement system 30 of the wearable device, the driving unit 39 can drive the light emitting unit 33 to move to the first position 321 and the fifth position 329. The photosensitive unit 35 has a first distance d1 and a fifth distance d5 between it and the first position 321 and the fifth position 329, respectively. The fifth distance d5 is greater than the first distance d1; for example, the fifth distance d5 is 1.5 to 2.5 times the first distance d1. Therefore, the blood glucose concentration of the subject can be calculated using the measurement system 30 of the wearable device described in this invention, in conjunction with related computing devices and methods.

[0122] The first distance d1, second distance d2, third distance d3, and fourth distance d4 mentioned in the above embodiments of this utility model can be the distance between the center position of the photosensitive unit 35 and the center position of the light emitting unit 33. In different embodiments, the first distance d1, second distance d2, third distance d3, and fourth distance d4 can be the distance between the edge position of the photosensitive unit 35 and the edge position of the light emitting unit 33. Since the first position 321, second position 323, third position 325, fourth position 327, and fifth position 329 are not the same, the diffuse reflected light L2 sensed by the photosensitive unit 35 will also be different. In practical applications, the position of the light emitting unit 33 can be adjusted by the driving unit 39 according to the measurement method and measured physiological parameters of the measurement system 30 of the wearable device.

[0123] The above-described method of moving the light emitting unit 33 to the first position 321, second position 323, third position 325, fourth position 327, and fifth position 329 via the driving unit 39 is merely one embodiment of this utility model and is not limited to the scope of protection of this utility model. In practical applications, the position of the light emitting unit 33 can be adjusted along the slide rail 371 according to the measurement method, the type of physiological parameter being measured, and / or the intensity of the diffuse reflected light L2 received by the photosensitive unit 35, which is beneficial to improving the accuracy of the measurement.

[0124] like Figure 6 As shown, the slide rail 371 of the (first) movable device 37 can be arranged along a straight track in the first direction X, while the slide block 373 and the light emitting unit 33 can be displaced relative to the slide rail 371 and the support plate 31 in the first direction X.

[0125] In another embodiment of this utility model, the measurement system 30 of the wearable device may include a barrier 34, wherein the barrier 34 may be disposed on the support plate 31. For example, the barrier 34 may be made of an opaque material and located between the light emitting unit 33 and the light sensing unit 35. The barrier 34 may be disposed between the light emitting unit 33 and the movable device 37, and may prevent the light source of the light emitting unit 33 from directly illuminating the light sensing unit 35.

[0126] like Figure 8 The diagram shows a structural schematic of another embodiment of the present invention. The slide rail 371 of the movable device 37 can be a straight track arranged along the second direction Y, wherein the second direction Y is perpendicular to the first direction X. For example, the first direction X and the second direction Y are two mutually perpendicular directions parallel to the surface of the support plate 31. The slide block 373 and the light emitting unit 33 can be displaced relative to the slide rail 371 and the support plate 31 along the second direction Y. Furthermore, multiple light emitting units 33 can be arranged on the slide block 373 of the movable device 37. For example, each light emitting unit 33 on the slide block 373 can generate detection light L1 and detection light L3 with different wavelength distributions or different light intensities.

[0127] In another embodiment of this utility model, such as Figure 9 As shown, the slide rail 371 of the movable device 37 can be an arc-shaped, annular, or partially annular track disposed on the surface of the support plate 31. The light emitting unit 33 is disposed on the slide 373, while the light sensing unit 35 is disposed on the support plate 31. In practical applications, the light emitting unit 33 can be displaced along the slide rail 371, changing the area where the detection light L1 is projected onto the object under test. During the displacement process, the distance between the light emitting unit 33 and the light sensing unit 35 changes accordingly. The barrier 34 can be disposed around the light sensing unit 35.

[0128] Please see Figure 10This is a schematic diagram illustrating the construction of another embodiment of the measurement system of the wearable device of the present invention. The measurement system 40 of the wearable device of the present invention can be disposed within a wearable device 20 and includes at least a support plate 41, a light emitting unit 43, a light sensing unit 45, a first movable device 471, and a second movable device 473, wherein the light sensing unit 45 is disposed in the first movable device 471, and the light emitting unit 43 is disposed in the second movable device 473.

[0129] The first movable device 471 and the second movable device 473 are similar in construction to the movable devices 17 / 37 in the aforementioned embodiments, and are mounted on the support plate 41. For example, the first movable device 471 includes a first slide rail 4711 and a first slide block 4713, while the second movable device 473 includes a second slide rail 4731 and a second slide block 4733. The first movable device 471 and the second movable device 473 are used to drive the photosensitive unit 45 and the light emitting unit 43 to move relative to the support plate 41, and to change the distance between the light emitting unit 43 and the photosensitive unit 45. For example, the first slide block 4713 can drive the photosensitive unit 45 to move relative to the support plate 41, thereby changing the amount of diffuse reflected light L2 received by the photosensitive unit 45 from different positions of the test object. In this way, the detection of diffuse reflected light L2 at different depths of the tissue of the test object can be realized, thereby improving the accuracy and comprehensiveness of the measurement.

[0130] In the illustrations of this utility model, the first movable device 471 and the second movable device 473 are annular and have different sizes. For example, the first movable device 471 may be located inside the second movable device 473. Alternatively, the first movable device 471 may be located outside the second movable device 473; in other words, the second slide rail 4731 is arranged around the periphery of the first slide rail 4711. For example, but not limited to, the first movable device 471 and the second movable device 473 may be a concentric circle structure, a concentric ellipse structure, or a concentric ring structure. Furthermore, an annular barrier 44 may be provided between the first movable device 471 and the second movable device 473. The annular shape of the first movable device 471 and the second movable device 473 is merely one embodiment of this utility model and is not a limitation of the scope of this utility model. In different embodiments, the first movable device 471 and the second movable device 473 may be other geometric shapes, such as a straight line, an arc, a partial ring, or a combination of the above geometric shapes.

[0131] In another embodiment of the present invention, the second slide rail 4731 is arranged around the periphery of the first slide rail 4711, or the first slide rail 4711 is arranged around the periphery of the second slide rail 4731, and can form a spherical scanning structure, so that the light emitting unit 43 and the light sensing unit 45 can move relative to each other in three-dimensional space, thereby realizing the all-round scanning or detection of a test object.

[0132] In another embodiment of the present invention, at least one drive unit 49 can be connected to the first movable device 471 and the second movable device 473 respectively, and can drive the first movable device 471 and the second movable device 473 to move synchronously or asynchronously relative to each other, so as to realize the all-round scanning of a test object in space.

[0133] In another embodiment of the present invention, the drive unit 49 includes a microprocessor 495, which can control the position and / or displacement speed of the first movable device 471 and the second movable device 473, thereby enabling intelligent scanning and detection of a test object.

[0134] In this utility model Figure 6 , Figure 7 , Figure 8 and Figure 9 In this embodiment, the light emitting unit 33 is mainly mounted on the movable device 37, and the light sensing unit 35 is mounted on the support plate 31. In different embodiments, the light sensing unit 35 can be mounted on the movable device 37, and the light emitting unit 33 can be mounted on the support plate 31. Similarly, the movable device 37 can be used to drive the light sensing unit 35 to move relative to the support plate 31 and / or the light emitting unit 33, thereby changing the distance between the light emitting unit 33 and the light sensing unit 35.

[0135] For ease of explanation, this utility model Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 In this embodiment, only one light emitting unit 13 / 33 / 43 and one light sensing unit 15 / 35 / 45 are shown, and the description is based on a single light emitting unit 13 / 33 / 43 and a single light sensing unit 15 / 35 / 45. In different embodiments, the number of light emitting units 13 / 33 / 43 and light sensing units 15 / 35 / 45 can be multiple. For example, multiple light emitting units 13 / 33 / 43 and / or multiple light sensing units 15 / 35 / 45 can be provided on the carrier plate 11 / 31 / 41 or the slide 173 / 373.

[0136] When the measurement system 10 / 30 / 40 of the wearable device has multiple light emitting units 13 / 33 / 43, each light emitting unit 13 / 33 / 43 can be used to generate detection light L1 and L3 with different wavelength distributions or different light intensities. The light source of the light emitting unit 13 / 33 / 43 can be, but is not limited to, a light-emitting diode, and the detection light L1 is a steady-state light with a wavelength between 600 and 1100 nm.

[0137] Furthermore, in different embodiments of this utility model, the light source of the light emitting unit 13 / 33 / 43 can be multiple micro LEDs, wherein each micro LED can also generate detection light L1 with different wavelength distributions.

[0138] In another embodiment of the present invention, the light emitting unit 13 / 33 / 43 may be a single light-emitting diode, and different driving currents may be provided to the light emitting unit 13 / 33 / 43 by the power supply unit 18, so that the light emitting unit 13 / 33 / 43 generates detection light L1 and L3 with different wavelength distributions or different light intensities.

[0139] In this embodiment of the invention, the drive unit 19 / 39 can be an electric device such as a stepper motor, or a mechanical drive device that does not require electricity, such as, but not limited to, a gear and lever system, a gravity drive system, etc. The drive unit 19 / 39 can not only drive the slide 173 to move at multiple specific positions on the slide rail 171, but also control and drive the slide 173 to move at different speeds.

[0140] In different embodiments of this utility model, at least one drive unit 19 / 39 may be provided. For example, a single drive unit 19 / 39 may simultaneously or sequentially control the displacement of the first slide 4713 and / or the second slide 4733 to different positions. Of course, if there are two independent drive units 19 / 39, they may each be electrically connected to the first movable device 471 or the second movable device 473 independently, and drive the first slide 4713 or the second slide 4733 to produce displacement according to the design.

[0141] like Figure 1 As shown, the wearable device 20 is a smartwatch, and the measurement system 10 (30 / 40) of the wearable device is disposed on the watch body 21 and is used to project the detection light L1 onto the wrist of the subject. The wearable device 20 may include at least one processor, at least one memory, or at least one wireless transmission chip (such as a Bluetooth chip), wherein the processor, memory, or wireless transmission chip may be disposed on the carrier plate 11 / 31 / 41.

[0142] The processor of the wearable device can convert the diffuse reflected light L2 signal received by the measurement system 10 / 30 / 40 of the wearable device into optical parameters, such as absorption coefficient and scattering coefficient, and perform calculations on the absorption coefficient and scattering coefficient to deduce the physiological parameters of the subject, such as blood glucose concentration and blood oxygenation. The detailed calculation method has been disclosed in related prior art and is understood and implemented by those skilled in the art. Furthermore, the calculation method is not a technical feature of this application and therefore will not be described in detail here.

[0143] In one embodiment of this utility model, the processor, memory, wireless transmission chip, measurement system 10 / 30 / 40, drive unit 19 / 39 and / or power supply unit 18 of the wearable device 20 can be integrated on the same carrier board and packaged together to form a co-packaged optometry (CPO).

[0144] Please see Figure 11 In one embodiment of this utility model, the support plate 11 of the measurement system 10 of the wearable device is a planar support plate. See also... Figure 2 or Figure 3 The slide rails 171 of the movable device 17 are all on the same horizontal or vertical plane, so the slide block 173, the light emitting unit 13, the light sensing unit 15, the first position 121 and the second position 123 are all on the same plane.

[0145] In another embodiment of this utility model, the support plate 11 of the measurement system 10 of the wearable device is a non-planar support plate, such as, but not limited to, a concave, a concave-convex, a stepped, or similar type. Figure 12 The diagram shows a convex support plate. The slide rail 171 of the movable device 17 will be mounted on the non-horizontal or non-vertical surface of the non-planar support plate 11. In other words, the first position 121 and the second position 123 will not be on the same horizontal plane or the same vertical plane. The light emitting unit 13 and the light sensing unit 15 on the slide 173 can move relative to each other in three-dimensional space, and the distance to a test object will vary in three-dimensional space, thereby enabling omnidirectional detection of non-planar or curved test objects.

[0146] Please see Figure 13 This is a schematic diagram of the measuring surface according to another embodiment of the present invention. The support plate 11 of the measurement system 10 of the wearable device is a non-planar support plate, and the slide rail 171 of the movable device 17 will be installed along with the non-horizontal or non-vertical surface of the non-planar support plate 11. The light emitting unit 13 (or light sensing unit 15) mounted on the slide 173 will move along with the non-planar slide rail 171 to a first position 121 and a second position 123 on different horizontal or vertical surfaces, while the light sensing unit 15 (or light emitting unit 13) is set at the same fixed position on the support plate 11. In this way, omnidirectional detection of non-planar or curved test objects can also be achieved.

[0147] In practical applications, such as Figure 14 As shown, the measurement system 10 / 30 / 40 of the wearable device can be set on the watch band 23 of the smartwatch, and can also project the detection light L1 onto the wrist of the subject and receive the diffused light L2. Figure 15As shown, the measurement system 10 / 30 / 40 of the wearable device can be set on the wearable device 50 and can project the detection light L1 onto the neck of the subject, for example, the wearable device 50 can be a collar.

[0148] In one embodiment of this utility model, the carrier plate 11 / 31 / 41 can be connected to another movable device (not shown) to drive the carrier plate 11 / 31 / 41, the light emitting unit 13 / 33 / 43 and the light sensing unit 15 / 35 / 45 to move along the direction perpendicular to the first direction X and the second direction Y, so as to change the distance between the carrier plate 11 / 31 / 41, the light emitting unit 13 / 33 / 43 and the light sensing unit 15 / 35 / 45 and the test object.

[0149] In another embodiment of this invention, the measurement system 10 / 30 / 40 of the wearable device can be manufactured using silicon photonics technology. For example, the processor, memory, wireless transmission chip, measurement system 10 / 30 / 40, drive unit 19 / 39, and / or power supply unit 18 of the wearable device 20 / 50 can be disposed on the same wafer substrate to form a silicon photonic structure. Through co-packaging and silicon photonics technology, it is beneficial to reduce the size of the measurement system 10 / 30 / 40 of the wearable device, reduce the power consumption of the wearable device 20 / 50, and improve the transmission speed.

[0150] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. All equivalent changes and modifications made in accordance with the shape, structure, features and spirit of the present utility model shall fall within the scope of protection of the present utility model.

Claims

1. A measurement system for a wearable device, characterized in that, include: A wearable device; A support plate is mounted on the wearable device; At least one light emitting unit is used to generate a detection light, wherein the detection light is projected onto a test object and generates diffuse reflection light; At least one movable device is provided on the support plate, including a slide rail and a slide block. The slide block moves along the slide rail, and the light emitting unit is provided on the slide block. The movable device is used to drive the light emitting unit to move relative to the support plate, thereby changing the position of the detection light projected onto the test object. At least one light sensing unit is used to receive the diffused light; and A power supply unit is connected to the light emitting unit and the light sensing unit, and is used to provide a driving power supply to the light emitting unit and the light sensing unit.

2. The measurement system for the wearable device as described in claim 1, characterized in that, The photosensitive unit is mounted on the slide of the movable device to maintain the same distance between the light emitting unit and the photosensitive unit, and the movable device is used to drive the light emitting unit and the photosensitive unit to move relative to the support plate.

3. The measurement system for the wearable device as described in claim 1, characterized in that, The photosensitive unit is positioned at a fixed location on the carrier plate, while the movable device is used to drive the light emitting unit to move relative to the photosensitive unit on the carrier plate, thereby changing the distance between the light emitting unit and the photosensitive unit.

4. The measurement system for the wearable device as described in claim 1, characterized in that, The slide rail can be a straight line, an arc, a ring, a partial ring, or a combination thereof.

5. The measurement system for the wearable device as described in claim 1, characterized in that, The light emitting unit includes multiple light sources with different wavelengths.

6. The measurement system for the wearable device as claimed in claim 1, characterized in that, The slide is connected to a drive unit that moves the slide to multiple specific positions on the slide rail.

7. The measurement system for the wearable device as claimed in claim 1, characterized in that, It includes a barrier wall disposed between the light emitting unit and the light sensing unit to prevent the detection light generated by the light emitting unit from directly illuminating the light sensing unit.

8. The measurement system for the wearable device as claimed in claim 1, characterized in that, The bearing plate can be a planar bearing plate or a non-planar bearing plate.

9. A measurement system for a wearable device, comprising: A wearable device; A support plate is mounted on the wearable device; At least one light emitting unit is used to generate a detection light, characterized in that the detection light is used to project onto a test object and generate diffuse reflection light; At least one light sensing unit is used to receive the diffused light; A power supply unit, connected to the light emitting unit and the light sensing unit, is used to provide a driving power supply to the light emitting unit and the light sensing unit; and A first movable device is disposed on the support plate, including a first slide rail and a first slide block. The first slide block can be displaced along the first slide rail. The light sensing unit is disposed on the first slide block of the first movable device. The first slide block is used to drive the light sensing unit to be displaced relative to the support plate, thereby changing the diffuse reflected light received by the light sensing unit from different positions of the test object.

10. The measurement system for the wearable device as claimed in claim 9, characterized in that, The light emitting unit is mounted on the support plate, and the first slide is used to drive the light sensing unit to move relative to the light emitting unit, so as to change the distance between the light emitting unit and the light sensing unit.

11. The measurement system for the wearable device as claimed in claim 9, characterized in that, The first slide rail can be a straight line, an arc, a ring, a partial ring, or a combination thereof.

12. The measurement system for the wearable device as claimed in claim 9, characterized in that, The device includes a second movable device disposed on the support plate, including a second slide rail and a second slide block. The second slide block can be displaced along the second slide rail. The light emitting unit is disposed on the second slide block of the second movable device and is displaced relative to the support plate by means of the second slide block.

13. The measurement system for the wearable device as claimed in claim 12, characterized in that, It includes at least one drive unit, which is connected to the first movable device and the second movable device, and can cause the first slide seat to move to different specific positions of the first slide rail, and the second slide seat to move to different specific positions of the second slide rail.

14. The measurement system for a wearable device as claimed in claim 13, characterized in that, The drive unit controls the first movable device and the second movable device to move synchronously or asynchronously relative to each other.

15. The measurement system for a wearable device as claimed in claim 13, characterized in that, The drive unit includes a microprocessor for controlling the position or speed of the first movable device and the second movable device.

16. The measurement system for the wearable device as claimed in claim 9, comprising a barrier wall disposed between the light emitting unit and the light sensing unit to prevent the detection light generated by the light emitting unit from directly illuminating the light sensing unit.

17. The measurement system for a wearable device as claimed in claim 12, characterized in that, The second slide rail can be arranged around the perimeter of the first slide rail.

18. The measurement system for a wearable device as claimed in claim 9, characterized in that, The bearing plate can be a planar bearing plate or a non-planar bearing plate.

Images