An electronic device

Abstract

This application provides an electronic device, including: a watch body 203, a first watch strap 201 and a second watch strap 202 connected to the watch body 203, a flexible substrate 207 disposed on the second watch strap 202, a pressure sensor array 208 disposed on the flexible substrate 207, and a first component 206. The first component 206 is movably sleeved on the second watch strap 202 or the first watch strap 201. When a user uses the electronic device to measure a pulse wave, the fastened first watch strap 201 or the second watch strap 202 applies pressure to the first component 206, causing the first component 206 to press against the pressure sensor array 208 on the watch strap. The pressure sensor array 208 contacts and measures the user's pulse at the pulse point (e.g., the radial or ulnar artery), thereby obtaining a pulse wave and displaying it on the watch body 203. The wearing and measurement process is simple, the pressure applied to the pressure sensor is controlled by the user, measurements can be performed at any time, and it is convenient to use.

Description

Technical Field

[0001] This application relates to the field of terminals, and more specifically, to an electronic device for measuring pulse waves. Background Technology

[0002] The pulse wave is formed by the outward propagation of blood along arteries under pressure caused by the heart's beating (vibration), and is one of the basic vital signs of the human body. The pulse rate and rhythm of the pulse wave can be used for early warning of abnormal conditions in the human body and for assessing the health status of the cardiovascular system.

[0003] Currently, pulse wave detection devices are mainly desktop devices and wristband wearable devices (such as smartwatches or smart bracelets). Desktop devices have drawbacks such as limited usage scenarios, inconvenience in portability, and inability to measure pulse waves at any time. When users use wristband wearable devices (taking watches as an example) to detect pulse waves, they need to rotate the watch on their wrist so that a protruding structure (i.e., the pressure sensor component) fixed on the back of the watch (i.e., the side of the watch that is in contact with the user's wrist when normally worn) is aligned with the radial or ulnar artery on the wrist. Then, they use their fingers to press the watch body to apply pressure to the radial or ulnar artery for measurement. The pressure applied to the user's wrist is relatively large. When the user wears the watch normally, this protruding structure will exert pressure on the user's wrist, resulting in a poor operating experience and wearing comfort, leading to a low user experience. Summary of the Invention

[0004] This application provides an electronic device comprising a display (e.g., a watch body 203), a wristband connected to the display (e.g., a first wristband 201 and a second wristband 202), a flexible substrate 207 disposed on the wristband (e.g., the second wristband 202), a pressure sensor array 208 disposed on the flexible substrate 207, and a first component 206, the first component 206 being movably sleeved on the wristband (e.g., the first wristband 201 or the second wristband 202). When a user uses the electronic device to measure a pulse wave, the fastened wristband applies pressure to the first component 206. The user can move the first component 206, causing it to press against the pressure sensor array 208 on the wristband. The pressure sensor array 208 presses against and contacts the user's pulse (e.g., the radial or ulnar artery), allowing the pressure sensor array 208 to measure the pulse at the user's pulse location, thereby obtaining a pulse wave and displaying it on the watch body's display. The wearing and measurement process is simple, the pressure applied to the pressure sensors is controlled by the user, making it convenient to use and providing an accurate and comfortable user measurement experience for the instant detection of pressure pulse waves.

[0005] For example, the electronic device may include a smartwatch, a smart bracelet, etc.

[0006] For example, the electronic device can be used to measure the pulse wave at the user's radial or ulnar artery.

[0007] In a first aspect, an electronic device is provided, comprising: a watch body 203, a first watch band 201, a second watch band 202, and a first component 206; one end of the first watch band 201 is connected to the watch body 203, and one end of the second watch band 202 is connected to the watch body 203; a flexible substrate 207 is disposed on the first surface of the second watch band 202, and a pressure sensor array 208 is fixed on the flexible substrate 207; the electronic device further includes an electrical wire 209 for connecting the pressure sensor array 208 and the watch body 203; the first component 206 is movably sleeved on the first watch band 201, and the first component 206 is used to apply pressure to the flexible substrate 207 on the second watch band 202; the pressure sensor array 208 on the flexible substrate 207 is used to contact the user's skin and measure pulse pressure signals under the pressure of the first component 206; the electrical wire 209 is used to transmit the pressure signal to the watch body 203, and the watch body 203 is used to process the pressure signal to obtain the user's pulse wave. The watch body 203 includes a display.

[0008] The electronic device provided in the first aspect includes a first component 206 fitted onto a first strap 201, and a flexible substrate 207 disposed on the first surface of a second strap 202. A pressure sensor array 208 is fixed on the flexible substrate 207. When fastened, the first component 206 on the first strap 201 applies pressure to the flexible substrate 207 on the second strap 202. Under the pressure of the first component 206, the pressure sensor array 208 on the flexible substrate 207 contacts the user's skin and measures the pulse pressure signal, which is then transmitted to the watch body for processing to obtain a pulse wave, which is then displayed on the watch body's display. During the measurement process, the user can change the applied pressure by moving the position of the first component 206, meaning the user can actively adjust the applied pressure. The wearing and measurement process is simple and convenient, improving the user experience.

[0009] In various embodiments of this application, the back side of the second watch strap 202 (i.e., the side of the second watch strap 202 that contacts the user's wrist skin when the user is wearing the watch) can also be referred to as the first side of the second watch strap 202, and the front side of the second watch strap 202 (i.e., the side of the second watch strap 202 that does not contact the user's wrist skin when the user is wearing the watch) can also be referred to as the second side of the second watch strap 202 (i.e., the side opposite to the first side of the second watch strap 202). Similarly, the back side of the first watch strap 201 (i.e., the side of the first watch strap 201 that contacts the user's wrist skin when the user is wearing the watch) can also be referred to as the first side of the first watch strap 201, and the front side of the first watch strap 201 (i.e., the side opposite to the first side of the first watch strap 201) can also be referred to as the second side of the first watch strap 201.

[0010] In one possible implementation of the first aspect, the first component 206 includes a first element 206a and a second element 206b, the first element 206a being movably sleeved on the first watch strap 201, and the second element 206b being fixed on the first element 206a.

[0011] For example, the first component 206 can be a watch band 206, the first element 206a can be a watch band body 206a, and the second element 206b can be a watch band head 206b. In this implementation, during the measurement process, the user can change the applied pressure by moving the position of the watch band body 206a on the first watch band 201, that is, the user can actively adjust the applied pressure, making the wearing and measurement process simple and convenient to use.

[0012] In one possible implementation of the first aspect, a buckle 212 is provided at the other end of the first watch strap 201, and a plurality of slots 213 are provided on the second surface of the second watch strap 202. The buckle 212 and the plurality of slots 213 are used to fasten the first watch strap 201 and the second watch strap 202. In this implementation, the buckle 212 and the slots 213 are used to fasten the first watch strap 201 and the second watch strap 202, thereby enabling the first component 206 on the first watch strap 201 to apply pressure to the flexible substrate 207 on the second watch strap 202. Furthermore, the first watch strap 201 and the second watch strap 202 do not need to be provided with a buckle 204 and a buckle hole 205, reducing the complexity of the electronic device structure.

[0013] In one possible implementation of the first aspect, a buckle 212 is provided at the other end of the first watch strap 201, and multiple slots 213 are provided on the second surface of the second watch strap 202. A buckle hole 205 is provided on the first watch strap 201, and a buckle 204 is provided at the other end of the second watch strap 202. The buckle hole 205 and the buckle 204 are used to fasten the first watch strap 201 and the second watch strap 202. A first component 206 is movably fitted onto the remaining portion of the first watch strap 201 after it passes through the buckle 204. The buckle 212 and the slots 213 are used to fasten the remaining portion of the first watch strap 201 after it passes through the buckle 204 to the second watch strap 202. In this implementation, fastening the first watch strap 201 and the second watch strap 202 through the buckle hole 205 and the buckle 204 can prevent the electronic device from moving or falling off the user's wrist, improving the user's experience of wearing electronic devices. Furthermore, by using the buckle 212 and the slot 213 to fasten, the first component 206 on the first strap 201 applies pressure to the flexible substrate 207 on the second strap 202, ensuring that the pressure sensor array 208 on the flexible substrate 207 can measure the pressure signal at the user's pulse.

[0014] In one possible implementation of the first aspect, the flexible substrate 207 is detachably connected to the second strap 202 via multiple connecting components 211; alternatively, the flexible substrate 207 is fixedly connected to the second strap 202, and a first marking is provided on the second surface of the second strap 202 to indicate the distribution area of ​​the pressure sensor array 208 on the second strap 202. In this implementation, the user can easily identify the position of the pressure sensor array 208, thereby moving the position of the first component 206 so that the first component 206 applies pressure to the pressure sensor array 208 on the flexible substrate 207, thereby enabling the pressure sensor array 208 to contact the user's skin and measure pulse pressure signals, further improving the user experience.

[0015] In one possible implementation of the first aspect, when measuring pulse waves using electronic devices, the second element 206b is located between the first strap 201 and the second strap 202. In this implementation, the second element 206b can apply pressure to the pressure sensor array 208 on the flexible substrate 207, ensuring that the measurement can be performed smoothly and improving the efficiency of pulse wave measurement.

[0016] In one possible implementation of the first aspect, a second mark is further provided on the second surface of the second strap 202. The second mark is used to locate the position of the buckle 212 when it is fastened into the slot 213. In this implementation, it is convenient for the user to record the position of the buckle 212 when measuring the pulse wave.

[0017] For example, the second identifier may include the number of the card slot 213.

[0018] In one possible implementation of the first aspect, a third mark is provided on the second surface of the first watch strap 201. The third mark is used to locate the position where the watch buckle 204 is fastened into the watch buckle hole 205 (i.e., the position parameter of the first watch strap 201 being fastened into the second watch strap 202). In this implementation, it is convenient for the user to record the position of the watch buckle hole when measuring the pulse wave.

[0019] For example, the third identifier may include the number of the buckle hole 205.

[0020] In one possible implementation of the first aspect, a scale is further provided on the second surface of the first watch strap 201. The scale on the first watch strap 201 is used to locate the position of the first component 206 on the first watch strap 201. In this implementation, it is convenient for the user to record the position of the first component 206 when measuring the pulse wave.

[0021] In one possible implementation of the first aspect, a fourth identifier is provided on the second element 206b, which indicates the height of the second element 206b. This implementation facilitates the user in determining the height of the second element 206b used when measuring the pulse wave.

[0022] In one possible implementation of the first aspect, when measuring pulse waves using an electronic device, a first interface is displayed on the screen of the watch body 203. This first interface is used to input or update: the position parameter α of the buckle 204 fastened into the buckle 205, the position parameter β of the first element 206a on the first strap 201, the height γ of the second element 206b, and the position parameter θ of the clasp 212 fastened into the slot 213. In this implementation, the height γ of the second element 206b and the position θ of the clasp 212 can be used to characterize the magnitude of the pressure applied to the pressure sensor array 208, and the position α of the buckle 204 and the position β of the first element 206a can be used to characterize the position of the user's pulse. Thus, when the user next uses the watch to measure their pulse waves, these parameters are displayed to the user, allowing them to wear the watch, use the second element 206b at the appropriate height, and move the first element 206a to the appropriate position to begin measurement. This significantly reduces the complexity of the user's operation during measurement, simplifies the process, and further improves the user experience. Furthermore, users can update the height γ of the watch band head, the position β of the watch band, the position α of the watch buckle, or the position θ of the clasp stored in the watch.

[0023] In one possible implementation of the first aspect, the electronic device further includes an FPC connector 210, through which electrical wires 209 on the flexible substrate 207 are connected to the body 203. The FPC connector 210 is used to transmit pressure signals to the body 203. In this implementation, the processor in the body 203 can further process the pressure signal to obtain a pulse wave, improving the efficiency of data transmission and processing.

[0024] In one possible implementation of the first aspect, the pressure sensor array 208 includes a plurality of pressure sensor units, each pressure sensor unit having a size less than or equal to a preset threshold.

[0025] For example, the size of each pressure sensor unit 208a (e.g., diameter, side length, or diagonal length) is approximately equal to the average diameter of the radial / ulnar artery B; alternatively, the size of each pressure sensor unit 208a can be smaller than the average diameter of the radial / ulnar artery B, for example, the size of each pressure sensor unit 208a can be one-third or one-half of the average diameter of the radial / ulnar artery B. This can improve the accuracy of the measurement.

[0026] In one possible implementation of the first aspect, the first element 206a and the second element 206b are assembled to form a first component 206 (i.e., one first element 206a can be assembled (or paired) with second elements 206b of different heights to obtain multiple different first components 206), or the first element 206a and the second element 206b are not detachable (i.e., one first element 206a can only be paired with one second element 206b, and the first component 206 is integrally formed).

[0027] Secondly, an electronic device is provided, comprising: a watch body 203, a second watch band 202, and a first component 206; one end of the second watch band 202 is connected to the watch body 203; a flexible substrate 207 is disposed on a first surface of the second watch band 202, and a pressure sensor array 208 is fixed on the flexible substrate 207; the electronic device further comprises an electrical wire 209 for connecting the pressure sensor array 208 and the watch body 203; the first component 206 is movably sleeved on the second watch band 202, at least a portion of the first component 206 being located within the space enclosed by the flexible substrate 207 and the second watch band 202; the first component 206 is used to apply pressure to the flexible substrate 207 on the second watch band 202, and the pressure sensor array 208 on the flexible substrate 207 is used to contact the user's skin and measure pulse pressure signals under the pressure of the first component 206; the electrical wire 209 is used to transmit the pressure signal to the watch body 203, and the watch body 203 is used to process the pressure signal to obtain the user's pulse wave.

[0028] The second aspect provides an electronic device in which a first component 206 is movably mounted on a second strap 202. At least a portion of the first component 206 is located within the space enclosed by a flexible substrate 207 and the second strap 202. The flexible substrate 207 is disposed on a first surface of the second strap 202, and a pressure sensor array 208 is fixed on the flexible substrate 207. When the second strap 202 is fastened, it applies pressure to the first component 206. Under this pressure, the first component 206 applies pressure to the flexible substrate 207 on the second strap 202. Under the pressure of the first component 206, the pressure sensor array 208 on the flexible substrate 207 contacts the user's skin and measures the pulse pressure signal, transmitting the pressure signal to the watch body for processing, thereby obtaining a pulse wave and displaying it on the watch body's display. During the measurement process, the user can change the applied pressure by moving the position of the first component 206, that is, the user can actively adjust the applied pressure. The wearing and measurement process is simple and convenient, improving the user experience.

[0029] For example, the electronic device may include a smartwatch, a smart bracelet, etc.

[0030] In one possible implementation of the second aspect, the first component 206 includes a first element 206a and a second element 206b. The first element 206a is movably sleeved on the second strap 202, and the second element 206b is fixed on the first element 206a. The second element 206b is located within the space enclosed by the flexible substrate 207 and the second strap 202. In this implementation, the first element 206a can move within the space enclosed by the flexible substrate 207 and the second strap 202, thereby allowing the user to change the applied pressure by moving the position of the first component 206 on the second strap 202. In other words, the user can actively adjust the applied pressure, improving the user experience.

[0031] In one possible implementation of the second aspect, the flexible substrate 207 is detachably connected to the second watch strap 202 via a plurality of connecting parts 211, and the space enclosed by two adjacent connecting parts 211 on the second watch strap 202, the second watch strap 202 and the flexible substrate 207 is the range of motion of the first element 206a on the second watch strap 202.

[0032] In one possible implementation of the second aspect, the electronic device further includes a first watch strap 201, one end of which is connected to the watch body 203. The first watch strap 201 has a buckle hole 205, and the other end of a second watch strap 202 has a buckle 204. The buckle hole 205 and the buckle 204 are used to fasten the first watch strap 201 and the second watch strap 202. The second watch strap 202 applies pressure to a first element 206a, which in turn applies pressure to a second element 206b, which in turn applies pressure to the flexible substrate 207. In this implementation, by fastening the first watch strap 201 and the second watch strap 202 through the buckle hole 205 and the buckle 204, pressure is applied by the second watch strap 202 to the second element 206b, ensuring that the pressure sensor array 208 on the flexible substrate 207 can measure the pressure signal at the user's pulse.

[0033] In one possible implementation of the second aspect, a third mark is provided on the second surface of the first watch strap 201. The third mark is used to locate the position where the watch buckle (204) is fastened into the watch buckle hole (205) (i.e., the position parameter of the first watch strap 201 fastening into the second watch strap 202). In this implementation, it is convenient for the user to record the position of the watch buckle hole when measuring the pulse wave.

[0034] For example, the third identifier may include the number of the buckle hole 205.

[0035] In one possible implementation of the second aspect, a scale is further provided on the second surface of the first watch strap 201. The scale on the first watch strap 201 is used to locate the position of the first component 206 on the second watch strap 202. In this implementation, it is convenient for the user to record the position of the first component 206 when measuring the pulse wave.

[0036] In one possible implementation of the second aspect, a fourth identifier is provided on the second element 206b, which indicates the height of the second element 206b. This implementation facilitates the user in determining the height of the second element 206b used when measuring the pulse wave.

[0037] In one possible implementation of the second aspect, when measuring pulse waves using an electronic device, a second interface is displayed on the screen of the watch body 203. This second interface is used to input or update: the position parameters of the buckle 204 fastened into the buckle hole 205, the position parameters of the first element 206a on the second strap 202, and the height of the second element 206b. In this implementation, the height γ of the second element 206b and the position α of the buckle 204 can be used to characterize the magnitude of the pressure applied to the pressure sensor array 208, and the position α of the buckle 204 and the position β of the first element 206a can be used to characterize the position of the user's pulse. Thus, when the user next uses the watch to measure their pulse waves, these parameters are displayed to the user, allowing them to wear the watch, use the second element 206b at the appropriate height, and move the first element 206a to the corresponding position to begin measurement. This significantly reduces the complexity of the user's operation during measurement, simplifies the process, and further improves the user experience.

[0038] In one possible implementation of the second aspect, the electronic device further includes a flexible printed circuit board (FPC) connector 210. Electrical leads 209 on the flexible substrate 207 connect the FPC connector 210 to the meter body 203. The FPC connector 210 is used to transmit pressure signals to the meter body 203. In this implementation, a processor in the meter body 203 can further process the pressure signal to obtain a pulse wave, improving the efficiency of data transmission and processing.

[0039] In one possible implementation of the second aspect, the pressure sensor array 208 includes a plurality of pressure sensor units, each pressure sensor unit having a size less than or equal to a preset threshold.

[0040] In one possible implementation of the second aspect, the first element 206a and the second element 206b are assembled into the first component 206, or the first element 206a and the second element 206b are not detachable (i.e., integrally formed).

[0041] Thirdly, an electronic device is provided, comprising: a watch body 203 and a second watch strap 202; one end of the second watch strap 202 is connected to the watch body 203, a miniature air pump 216 is disposed in the watch body 203, an air bladder 214 is disposed on the first surface of the second watch strap 202, and a flexible substrate 207 is fixed on the air bladder 214; the electronic device further comprises an electrical wire 209 for connecting a pressure sensor array 208 and the watch body 203; the miniature air pump 216 is used to inflate the air bladder 214 to expand its volume, the air bladder 214 is used to compress the flexible substrate 207, and the pressure sensor array 208 on the flexible substrate 207 is used to contact the user's skin and measure the pulse pressure signal under the pressure of the air bladder 214; the electrical wire 209 is used to transmit the pressure signal to the watch body 203, and the watch body 203 is used to process the pressure signal to obtain the user's pulse wave.

[0042] The third aspect provides an electronic device that, when used by a user to measure pulse waves, inflates the airbag, causing it to contact and compress the flexible substrate. This causes the pressure sensor array on the flexible substrate to contact the user's pulse point, and the pressure sensor array measures the pulse at the user's pulse point (e.g., the radial or ulnar artery), thereby obtaining the pulse wave. The wearing and measurement process is simple, and the pressure application method is flexible and comfortable, which can improve the user's comfort when using a watch to measure pulse waves and enhance the user experience.

[0043] In one possible implementation of the third aspect, a pressure sensor array 208 is fixed on a first region 207a of the flexible substrate. When the airbag 214 is not inflated, there is a space between the first region 214a of the airbag and the first region 207a of the flexible substrate. The second region 214b of the airbag is in contact with the second region 207b of the flexible substrate. The first region 214a of the airbag is made of an elastic material, and the second region 214b of the airbag is made of a rigid material. In this implementation, after the airbag 214 is inflated, a local area of ​​the airbag (i.e., the first area 214a of the airbag) will exert pressure on the flexible substrate 217, while other areas of the airbag (i.e., the second area 214b of the airbag) will not exert pressure on the flexible substrate 207 in contact with it. That is, a local airbag pressurization method is adopted. Compared with the method of fully pressurizing the airbag, the required pressure is smaller. Moreover, the pressure is applied to a local area of ​​the user's wrist (i.e., the radial or ulnar artery of the user's wrist), rather than applying pressure to the entire or most area of ​​the user's wrist. This can improve the user's comfort when using the watch to measure the pulse wave and improve the user experience.

[0044] In one possible implementation of the third aspect, after the airbag 214 is inflated, the first region 214a of the airbag is used to compress the first region 207a of the flexible substrate, and the pressure sensor array 208 on the first region 207a of the flexible substrate is used to contact the user's skin and measure the pulse pressure signal under the pressure applied by the first region 214a of the airbag.

[0045] In one possible implementation of the third aspect, the volume of the second region 214b of the airbag remains unchanged before and after the airbag (214) is inflated.

[0046] In one possible implementation of the third aspect, the airbag 214 is detachably connected to the second watch 202 via a plurality of connecting parts 211, or the airbag 214 is fixedly connected to the second watch strap 202.

[0047] In one possible implementation of the third aspect, the electronic device further includes a flexible printed circuit board (FPC) connector 210. Electrical leads 209 on the flexible substrate 207 are connected to the meter body 203 via the FPC connector 210, which transmits the pressure signal to the meter body 203. In this implementation, the processor in the meter body 203 can further process the pressure signal to obtain a pulse wave, improving the efficiency of data transmission and processing.

[0048] In one possible implementation of the third aspect, the electronic device further includes an air passage interface 215, through which the airbag 214 is connected to a micro air pump 216, and the micro air pump 216 inflates the airbag 214 through the air passage interface 215.

[0049] In one possible implementation of the third aspect, the pressure sensor array 208 includes a plurality of pressure sensor units, each pressure sensor unit having a size less than or equal to a preset threshold. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of a watch that measures pulse waves based on a pressure sensor.

[0051] Figure 2 This is a schematic structural diagram of a smartwatch provided in an embodiment of this application.

[0052] Figure 3 This is a schematic structural diagram of a watch strap band provided in an embodiment of this application.

[0053] Figure 4 This is a schematic structural diagram of a watch strap band, pressure sensor, and flexible substrate on a watch strap, provided in an embodiment of this application.

[0054] Figure 5This is a schematic structural diagram of the watch band, pressure sensor, and flexible substrate on the side of another example of a watch band provided in this application embodiment.

[0055] Figure 6 This is a schematic diagram showing the dimensions of a pressure sensor array on a flexible substrate and a watch strap clamp, as provided in an embodiment of this application.

[0056] Figure 7 This is a schematic diagram of a user wearing a watch to measure the pulse wave at the radial artery, provided in an embodiment of this application.

[0057] Figure 8 This is a schematic diagram illustrating an example of a user wearing a watch normally without activating the measurement of the radial artery pulse wave, as provided in an embodiment of this application.

[0058] Figure 9 This is a schematic diagram of the position of the watch buckle and watch band when a user wears a watch to measure pulse waves and the pressure signal reaches the measurement requirements, as provided in an embodiment of this application.

[0059] Figure 10 This is a schematic structural diagram of another example of a smartwatch provided in the embodiments of this application.

[0060] Figure 11 This is a schematic structural diagram of the watch band, pressure sensor, and flexible substrate on the side of another example of a watch band provided in this application embodiment.

[0061] Figure 12 This is a schematic structural diagram of the watch band, pressure sensor, and flexible substrate on the side of another example of a watch band provided in this application embodiment.

[0062] Figure 13 This is another example of a user wearing a watch to measure the pulse wave at the radial artery, provided in an embodiment of this application.

[0063] Figure 14 This is another example of a user wearing a watch normally without activating the measurement of the radial artery pulse wave, as provided in this application embodiment.

[0064] Figure 15 This is a schematic diagram of the display interface on a watch when a user first uses the watch to measure their pulse wave, as provided in an embodiment of this application.

[0065] Figure 16 This is a schematic diagram of the display interface on a watch when a user is measuring a pulse wave for the first time, as provided in an embodiment of this application.

[0066] Figure 17 This is another example of the display interface on the watch when a user is measuring their pulse wave for the first time, as provided in the embodiments of this application.

[0067] Figure 18 This is a schematic structural diagram of another example of a smartwatch provided in the embodiments of this application.

[0068] Figure 19 This is a schematic structural diagram of the airbag, pressure sensor, and flexible substrate on the second strap of a watch provided in an embodiment of this application.

[0069] Figure 20 This is a schematic structural diagram of the airbag on the second strap of a watch provided in an embodiment of this application, in an inflated state, along with the pressure sensor and the side view of the flexible substrate.

[0070] Figure 21 This is another example of a user wearing a watch to measure the pulse wave at the radial artery, provided in an embodiment of this application.

[0071] Figure 22 This is a schematic diagram of the display interface on a watch when a user measures their pulse wave, as provided in an embodiment of this application. Detailed Implementation

[0072] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0073] The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, “one or more” means one or more (including two); “and / or” describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0074] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0075] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0076] Furthermore, various aspects or features of this application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in embodiments of this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0077] The pulse wave is formed by the outward propagation of blood along arteries under pressure caused by the heart's beating (vibration), and is one of the basic vital signs of the human body. The propagation speed of the pulse wave depends on the physical and geometric properties of the propagation medium—the elasticity of the artery, the size of the lumen, the density and viscosity of the blood, etc., especially closely related to the elasticity, diameter, and thickness of the arterial wall. Pulse wave images can be obtained by detecting pulses in relatively superficial blood vessels. The pulse rate and rhythm of the pulse wave can be used for early warning of abnormal conditions in the human body and for assessing the health status of the cardiovascular system. For example, pulse wave velocity (PWV) is strongly correlated with blood pressure and the elasticity of blood vessel walls, and can be used for non-invasive continuous blood pressure measurement and prediction of arteriosclerosis. Several parameter features can be extracted from the pulse wave, such as the maximum value, mean, and median of the main wave peak, the pulse wave area, the K-value, and the spectrum, which can be used for assessing sub-health conditions, visual fatigue, drowsiness, and identifying emotional and cardiovascular diseases. In addition, pulse waves have been used extensively in the field of traditional Chinese medicine. Traditional Chinese medicine pulse diagnosis uses three fingers to lift, press, and search the radial artery at the cun, guan, and chi positions. By analyzing the information fed back from the pulse waves, the health status of the human body can be judged, achieving the goal of diagnosing diseases before symptoms appear.

[0078] The principle of pulse wave detection is as follows: a pressure sensor is placed on the skin surface at the pulsation point. Under a certain pressure, the pressure sensor senses the pulsating pressure signal and converts it into an electrical signal output. After processing, the pulse wave can be obtained. Currently, pressure sensors are mainly divided into three working principles: piezoresistive, piezoresistive, and piezoelectric. Among them, piezoresistive and piezoresistive sensors can measure absolute pressure, while piezoelectric sensors can only measure relative changes.

[0079] Currently, pulse wave detection devices are mainly desktop devices and wristband-style wearable devices (such as smartwatches or smart bracelets). Desktop devices have drawbacks such as limited application scenarios, inconvenience in portability, and inability to measure at any time.

[0080] For wristband-style wearable devices Figure 1 The diagram shown is a schematic representation of a watch that measures pulse waves based on a pressure sensor. Figure 1 As shown in Figure a, the watch detects pulse waves at the radial or ulnar artery through a protruding structure (a pressure sensor assembly) on the back of the watch case (the side that contacts the user's wrist when the watch is normally worn, or the side opposite the display screen). However, the following problems exist: First, because the radial or ulnar artery is located on the inside of the user's wrist, and the back of the watch case does not contact the user's wrist skin when the watch is normally worn, ... Figure 1As shown in Figure b, when measuring a pulse wave, the user needs to rotate the watch on their wrist so that the back of the watch body contacts the user's wrist skin (i.e., it needs to be worn upside down). The user also needs to apply pressure to the protruding structure to maintain the appropriate pressure, which is cumbersome and difficult for the user to master. Secondly, when the watch is worn normally, the protruding structure at the bottom of the watch exerts pressure on the user's wrist, affecting wearing comfort. Thirdly, each measurement requires precise alignment of the protruding structure with the pulsation point (such as the radial or ulnar artery), which is difficult for the user to locate accurately. In summary, this method requires the user to manually apply pressure to the protruding structure, resulting in difficulty in alignment and poor user experience and wearing comfort.

[0081] For wristband-type wearable devices, there are also methods that apply pressure to the entire or most area of ​​the wrist based on wristband locking or automatic airbag pressurization to achieve the purpose of applying pressure at the pulse point (such as the radial or ulnar artery). However, both of these methods have the limitation that the applied pressure is determined by the wristband-type wearable device, and the user cannot actively adjust the amount of pressure applied. Since each user's pain threshold is different, it is easy to cause pain and discomfort, resulting in a poor user measurement experience.

[0082] In summary, desktop pulse wave detection devices are inconvenient to use and cannot provide real-time, anytime, anywhere monitoring. Wristband-style wearable devices, on the other hand, suffer from poor user comfort, offering a less than ideal operating experience and wearing comfort.

[0083] In view of this, this application provides an electronic device comprising a display (e.g., a watch body 203), a wristband connected to the display (e.g., a first wristband 201 and a second wristband 202), a pressure sensor array 208 disposed on the wristband (e.g., the second wristband 202), and a first component 206 (e.g., a wristband band 206). The first component 206 comprises a first element 206a (e.g., a wristband body 206a) and a second element 206b (e.g., a wristband head 206b). The first component 206 is movably fitted onto either the first wristband 201 or the second wristband 202. After the user fastens the wristband to their wrist, the fastened wristband applies pressure to the first component 206. By moving the first component 206 on the wristband, the user presses the pressure sensor array 208 on the wristband. The pressure sensor array 208 presses and contacts the user's pulse point (e.g., the radial or ulnar artery), causing the pressure sensor array 208 to measure the pulse at the user's pulse point, thereby obtaining a pulse wave and displaying it on the display of the watch body 203. The wearing and measurement process is simple, the pressure applied to the pressure sensor is controlled by the user, making it convenient to use and providing an accurate and comfortable user measurement experience for the instant detection of pressure pulse waves.

[0084] The following examples illustrate the electronic devices provided in this application.

[0085] In the examples below, a smartwatch will be used as an example of an electronic device. However, this should not limit the embodiments of this application. For example, in the embodiments of this application, the electronic device may also be other types of electronic devices, such as smart bracelets or other wrist-worn wearable devices. The embodiments of this application are not limited herein.

[0086] Figure 2 The diagram shown is a schematic structural diagram of a smartwatch provided in an embodiment of this application. Wherein, Figure 2 Figure a shows a schematic structural diagram of the back of a smartwatch (the side opposite the display screen on the watch body). Figure 2 Figure b shows a schematic structural diagram of the front of a smartwatch (i.e., the side of the watch body where the display screen is located). Figure 2 As shown in Figures a and b, the smartwatch provided in this embodiment includes a first watch strap 201 and a second watch strap 202. One end of the first watch strap 201 is connected to the watch body 203, and one end of the second watch strap 202 is also connected to the watch body 203. A buckle 204 is provided at one end of the second watch strap 202, and multiple buckle holes 205 are provided on the first watch strap. When the user wears the watch, the buckle 204 passes through the buckle holes 205, thus securing the watch to the user's wrist.

[0087] like Figure 2 As shown in Figure b, each of the multiple buckle holes 205 on the first watch strap 201 is marked (i.e., a third mark), which is used to distinguish different buckle holes. For example, as... Figure 2 As shown in Figure b, the identifier can be a number or similar. This application embodiment does not limit the specific form of the identifiers on the multiple clasp holes 205, as long as the identifier can distinguish different clasp holes. When the user wears the watch and inserts the clasp 204 into a specific clasp hole 205, the number of the clasp hole 205 is used to locate the position of the clasp 204.

[0088] The front of the first watch strap 201 (i.e., the side opposite to the side of the first watch strap 201 that contacts the user's wrist skin when the user wears the watch) is provided with a scale. In this embodiment of the application, the back of the first watch strap 201 is the side of the first watch strap 201 that contacts the user's wrist skin when the user wears the watch.

[0089] After the user wears the watch, the first strap 201 passes through the buckle 204 and the strap band 206, and the scale on the first strap 201 is used to locate the position of the strap band 206 on the second strap 202.

[0090] For example Figure 2As shown in Figure a, a flexible substrate 207 is provided on the back of the second watchband 202 (i.e., the side of the second watchband 202 that contacts the user's wrist when the user wears the watch), and a pressure sensor array 208 is fixed on the flexible substrate 207. Optionally, the flexible substrate 207 can be arranged on all or part of the back of the second watchband 202.

[0091] In this embodiment, the back side of the second watch strap 202 (i.e., the side of the second watch strap 202 that contacts the user's wrist skin when the user wears the watch) can also be referred to as the first side of the second watch strap 202, and the front side of the second watch strap 202 (i.e., the side opposite to the back side of the second watch strap 202) can also be referred to as the second side of the second watch strap 202. In other words, after the user wears the watch, the side of the second watch strap 202 that the user can see is the second side of the second watch strap 202, and the side of the second watch strap 202 that the user cannot see is the first side of the second watch strap 202.

[0092] Similarly, the back of the first watch strap 201 (the side that contacts the user's wrist skin when the user wears the watch) can also be called the first side of the first watch strap 201, and the front of the first watch strap 201 (the side opposite to the back of the first watch strap 201) can also be called the second side of the first watch strap 201. In other words, after the user wears the watch, the side of the first watch strap 201 that the user can see is the second side of the first watch strap 201, and the side of the first watch strap 201 that the user cannot see is the first side of the first watch strap 201.

[0093] The flexible substrate 207, on which the pressure sensor array 208 is fixed, can be detachably connected to the second watch strap 202, or it can be fixed (e.g., by adhesive) to the second watch strap 202. Electrical wires 209 are provided on the flexible substrate 207 to transmit the pressure signal detected by the pressure sensor array 208 to the watch body 203, allowing the processor in the watch body 203 to process the pressure signal and obtain the pulse wave at the user's radial or ulnar artery. The second watch strap 202 passes through the watch strap clamp 206 (i.e., the watch strap clamp 206 is movably fitted onto the second watch strap 202). After the second watch strap 202 passes through the watch strap clamp 206, one side of the watch strap clamp 206 is located between the flexible substrate 207 and the second watch strap 202, and the watch strap clamp 206 can move within the space enclosed by the second watch strap 202 and the flexible substrate 207. After the user fastens the watch clasp 204, the pressure generated by the second strap 202 acts on the strap band 206. Under this pressure, the strap band 206 squeezes the flexible substrate 207. Under this pressure, the pressure sensor array 208 on the flexible substrate 207 comes into contact with the user's radial or ulnar artery. The pressure sensor array 208 measures the pulse of the user's radial or ulnar artery and obtains a pressure signal. This signal is transmitted to the watch body 203 for processing via the electrical wires 209 on the flexible substrate 208. The processor in the watch body 203 processes the pressure signal to obtain a pulse wave image. Furthermore, some parameter characteristics (such as blood pressure, heart rate, arteriosclerosis risk index, etc.) can be obtained from the pulse wave image, and the obtained pulse wave image and parameter characteristics can be displayed to the user on the display screen of the watch body 203.

[0094] In this embodiment of the application, the first component 206 can be Figure 2 The watch band clamp 206 is shown in the figure. In the examples below, watch band clamp 206 will be used as an example for explanation.

[0095] Optional, such as Figure 2 As shown in Figure a, a flexible printed circuit board (FPC) connector 210 can be provided between the flexible substrate 207 and the body 203. The FPC connector 210 is used to transmit the pressure signal measured by the pressure sensor array 208 to the body 203, so that the processor in the body 203 can further process the pressure signal.

[0096] For example, one possible implementation is that the FPC connector 210 can be fixed to the watch body 203, connecting the electrical wire 209 to the watch body 203. The FPC connector 210 acts as an interface. During the process of removing and installing the flexible substrate 207 from the second watch band 202, the FPC connector 210 can provide contacts or pins for connecting to the electrical wire 209, thereby connecting the electrical wire 209 to the watch body 203.

[0097] Another possible implementation is that the FPC connector 210 can also be fixed to the flexible substrate 207 and connected to the electrical wire 209. The watch body 203 is provided with an interface for connecting to the FPC connector 210, and the electrical wire 209 and the watch body 203 are connected using the FPC connector 210. During the process of removing and installing the flexible substrate 207 from the second watch band 202, the FPC connector 210 can provide pins or contacts for connecting to the watch body 203, thereby realizing the connection between the electrical wire 209 and the watch body 203.

[0098] It should be understood that in other embodiments of this application, the FPC connector can be replaced with other types of circuit interfaces, etc., and the embodiments of this application are not limited herein.

[0099] It should also be understood that, Figure 2 This is merely an example and should not impose any limitations on the structure of the smartwatch in this application embodiment. For example, the scale on the first strap 201 can also be arranged sequentially from left to right, or the buckle holes on the first strap 201 can also be numbered from left to right. Figure 2 Figure b shows that the scale on the first watch strap 210 is arranged sequentially from right to left, and the buckle holes on the first watch strap 201 are also numbered sequentially from right to left. This application does not limit the embodiments described herein.

[0100] Figure 3 The diagram shown is a schematic structural diagram of the watch band 206 in an embodiment of this application. Figure 3 As shown in this embodiment, the watch band 206 is assembled from a band head 206b and a band body 206a. One band body 206a can be assembled (or paired) with band heads of different heights to obtain multiple different watch bands, thereby achieving the purpose of adjusting the pressure applied to the pressure sensor. In other words, different band heads of different heights correspond to different pressure values. For example, as... Figure 3As shown, the height of the watch head 206b is represented by γ. For each watch head, its height γ can be marked on the watch head (i.e., the height of the watch head 206b is indicated by the fourth mark) for easy identification by the user. In this embodiment, multiple watch heads with different heights can be provided. For example, the heights of the watch heads can be 1mm, 2mm, 3mm, 4mm, 5mm, etc. This embodiment does not limit the height of multiple watch heads.

[0101] It should also be understood that in the embodiments of this application, the watch band 206 can also be integrally formed, that is, it is not assembled by the watch band body 206a and the watch band head 206b. The watch band body 206a and the watch band head 206b are not detachable. In this case, multiple watch band 206s can be prepared, and the height of the watch band head 206b corresponding to different watch band 206s is different.

[0102] In this embodiment, the first element 206a can be Figure 3 The watch collar body 206a shown, the second element 206b can be Figure 3 The watch band head 206b is shown in the figure. In the examples below, the watch band body 206a and the watch band head 206b will be used as examples for illustration. In the embodiments of this application, the watch band body may also be referred to as a watch ring buckle, watch band buckle, watch band fixing ring, movable ring, watch band ring, or band ring, etc., and the embodiments of this application are not limited thereto.

[0103] like Figure 3 As shown, the width of the watch band 206a (or the width of the watch strap) is represented by D3. In some embodiments, the width D3 of the watch band 206a is approximately 2 to 3 times the average diameter of the user's radial or ulnar artery. For example, the value of the width D3 of the watch band 206a can be 7.5 mm. It should be understood that the specific value of the width of the watch band 206a is not limited in the embodiments of this application. The width of the watch band 206a can also be other values, as long as the width of the watch band 206a is greater than the average diameter of the user's radial or ulnar artery. The embodiments of this application do not impose any limitations here.

[0104] like Figure 3 As shown, the watch band 206 is assembled (installed) from a band head 206b and a band body 206a, and the band head 206b can be installed on the side of the band body 206a closest to the user's wrist. Figure 3 As shown, the watch head 206b is installed on the lower side of the watch body 206a, and the lower side of the watch body 206a is closer to the user's wrist than the upper side of the watch body 206a.

[0105] It should be understood that in other embodiments of this application, the watch head can also be installed on the upper side of the watch body, and this application does not limit this.

[0106] Figure 4 The image shown is in Figure 2 The diagram shown is a schematic side view of the structure of the second watch band 202, including the band clamp 206 (assembled from the clamp head 206b and the clamp body 206a), the pressure sensor array 208, and the flexible substrate 207. Figure 4 The image shown illustrates a user measuring their pulse wave using the watch. Figure 4 As shown, a pressure sensor array 208 is fixed on the flexible substrate 207. For example, the pressure sensor array 208 can be fixed to the flexible substrate 207 by means of adhesive or the like. In this case, the electrical wires 209 on the flexible substrate 207 can contact the pressure sensor array 208. The pressure signal measured by the pressure sensor array 208 is transmitted to the electrical wires 209, and the pressure signal is transmitted to the body 203 through the electrical wires 209. Alternatively, the connection between the pressure sensor array 208 and the flexible substrate 207 can also be a circuit connection. In this case, the electrical wires 209 can be placed in any area of ​​the flexible substrate 207 and do not necessarily have to contact the pressure sensor array 208. The pressure signal measured by the pressure sensor array 208 is transmitted to the flexible substrate 207, and the flexible substrate 207 transmits the pressure signal to the body 203 through the electrical wires 209.

[0107] In this embodiment, the arrangement position of the pressure sensor array 208 can be determined through data statistics. For example, the positions of the radial or ulnar arteries on the second watchband 202 or flexible substrate 207 can be statistically analyzed when multiple users wear the watch, thereby determining the position of the pressure sensor array 208 on the second watchband 202 or flexible substrate 207. For example, for a second watchband 202 with a length of 53mm, the pressure sensor can be disposed in an area of ​​the flexible substrate 207 at a distance of 3.1cm to 6.1cm from the buckle 204.

[0108] In some embodiments, such as Figure 4As shown, the flexible substrate 207 can be detachably connected to the second watch strap 202 via several connecting components 211, wherein any one of the connecting components 211 can be detachably connected to the second watch strap 202. For example, the connecting component can be a buckle, etc., and this embodiment of the application is not limited thereto. Before fixing the flexible substrate 207 to the second watch strap 202, the watch strap clamp 206 (assembled from the clamp head 206b and the clamp body 206a) is first put on the second watch strap 202, and then the flexible substrate 207 and the second watch strap 202 are fixed by the connecting components 211. The watch strap clamp 206 can move within the space formed by two adjacent connecting components 211. In other words, when the user moves the position of the clamp body 206a on the second watch strap 202 by hand, the range of movement R of the clamp body 206a is limited by the two adjacent connecting components 211 on its left and right.

[0109] like Figure 4 As shown, the second watch strap 202 passes through the watch band 206a (i.e., the watch band 206a is fitted onto the second watch strap 202), and... Figure 4 In the example shown, the watch band head 206b is mounted on the upper side of the watch band body 206a (i.e., the watch band head 206b is mounted on the side of the watch band body 206a closest to the user's wrist skin S). The user can move the watch band 206 (assembled from the watch band head 206b and the watch band body 206a) on the second watch band 202 by hand, so that the watch band 206 can compress the pressure sensor array 208 on the flexible substrate 207. After the user fastens the second watch band 202, the pressure generated by the second watch band 202 acts on the upper side of the watch band body 206a. The upper side of the watch band body 206a transmits this pressure to the watch head 206b. Under the action of this pressure, the position of the watch head 206b changes (i.e., the watch head 206b moves in a direction perpendicular to the second watch band 202), causing the watch head 206b to contact and squeeze the flexible substrate 207. Under the action of this pressure, the flexible substrate 207 deforms (the side of the flexible substrate 207 bulges towards the user's wrist skin S), causing the pressure sensor array 208 on the flexible substrate 207 to contact the radial or ulnar artery of the user's wrist skin S. The pressure sensor array 208 can then measure the pulse of the user's radial or ulnar artery and obtain a pressure signal.

[0110] It should be understood that Figure 4 The arrangement shown should not limit the distribution of the pressure sensor array 208 on the flexible substrate 207 in this embodiment. In other embodiments of this application, the pressure sensor array 208 can be placed at other locations on the flexible substrate 207 as needed for measurement, as long as the pressure sensor array 208 can contact the radial or ulnar artery at the user's wrist during measurement. This embodiment does not impose any limitations on this.

[0111] Figure 5 The example shown is another example in Figure 2 The diagram shows a schematic side view of the strap band 206, pressure sensor array 208, and flexible substrate 207 on the second strap 202. Figure 5 The diagram shown illustrates a scenario where the user is not using the watch to measure their pulse wave, meaning the user is only using the basic functions of the smartwatch. Figure 5 The structure shown is Figure 4 The difference in the structures shown is that: Figure 5 In the structure shown, the watch head 206b is installed on the lower side of the watch body 206a (i.e., the watch head 206b is installed on the side of the watch body 206a away from the user's wrist skin S), while... Figure 4 In the structure shown, the watch head 206b is installed on the upper side of the watch body 206a (that is, the watch head 206b is installed on the side of the watch body 206a that is close to the user's wrist skin S).

[0112] exist Figure 5 In the structure shown, after the user fastens the second strap 202, the pressure generated by the second strap 202 acts on the upper side of the watch head 206a, so the watch head 206b will not be squeezed by the watch head 206a. In this case, since the pressure generated by the watch head 206a on the flexible substrate 207 is small, the pressure generated by the watch head 206a on the user's wrist surface skin S is small or non-existent, thus improving wearing comfort.

[0113] Alternatively, as another possible implementation, if the user is not using the watch to measure pulse waves, the watch head 206b can be removed from the watch body 206a; that is, the watch body 206a is not equipped with the watch head 206b, and only the watch body 206a is fitted onto the second watch strap. Figure 5 The structure shown may also exclude the watch head 206b. This improves wearing comfort and prevents the watch head 206b from detaching from the watch body 206a, thus preventing loss. When the user uses the watch to measure pulse waves, the flexible substrate 207 and the second watch band 202 are separated via the connecting component 211 between the flexible substrate 207 and the second watch band 202. Then, the watch head 206b is installed on the side of the watch body 206a closest to the user's wrist skin S. Finally, the flexible substrate 207 and the second watch band 202 are fixed together via the connecting component, for example... Figure 4 The structure shown enables users to measure their pulse waves using the watch.

[0114] Alternatively, as another possible implementation, if the second watchband 202 and the watch body 203 are detachably connected and the user is not using the watch to measure pulse waves, the user can also remove the entire watchband clamp 206 from the second watchband. For example, the second watchband 202 can be removed from the watch body 203 first, then the flexible substrate 207 can be separated from the second watchband 202 through the connecting component 211 between the flexible substrate 207 and the second watchband 202, then the clamp head 206b and the clamp body 206a can be removed from the second watchband 202, and finally the flexible substrate 207 can be connected to the second watchband 202 through the connecting component 211, and then the second watchband 202 can be connected to the watch body 203. When a user uses the watch to measure their pulse wave, firstly, the second watchband 202 is removed from the watch body 203. The flexible substrate 207 and the second watchband 202 are then separated via the connecting component 211 between them. Next, the watchband clamp 206 (assembled from the clamp head 206b and the clamp body 206a) is fitted onto the second watchband 202. Then, the flexible substrate 207 and the second watchband 202 are fixed together via the connecting component 211. Finally, the second watchband 202 is connected to the watch body 203 as a whole. For example... Figure 4 The structure shown enables users to measure their pulse waves using the watch.

[0115] Figure 6 The diagram shown is a schematic representation of the dimensions of a pressure sensor array 208 and a watchband 206 on a flexible substrate according to an embodiment of this application. Figure 6 As shown, the pressure sensor array 208 is composed of multiple pressure sensor units 208a. In this embodiment, the specific shape of the pressure sensor unit 208a is not limited; for example, it can be... Figure 6 The shape shown is a circle, but it can also be a rectangle or other shapes.

[0116] Optionally, in this embodiment, the size of each pressure sensor unit 208a is less than or equal to a preset threshold. For example, the size of each pressure sensor unit 208a (e.g., diameter, side length, or diagonal length) is approximately equal to the average diameter of the radial / ulnar artery B; or, the size of each pressure sensor unit 208a can be smaller than the average diameter of the radial / ulnar artery B. For example, the size of each pressure sensor unit 208a can be one-third or one-half of the average diameter of the radial / ulnar artery B. This embodiment is not limited in its application. For example, as... Figure 6 As shown, the pressure sensor unit 208a is circular, and its diameter is the same as the average diameter of the radial or ulnar artery.

[0117] In some embodiments, the plurality of pressure sensor units 208a may be arranged in a single row or in multiple rows (e.g., Figure 6 (The two rows shown). This application's embodiments are not limited herein.

[0118] Figure 7 The image shown is of a user wearing [a certain item]. Figures 2 to 6 The diagram shown illustrates how a watch measures the pulse wave at the radial artery. The watchband 206 (assembled from the watchband head 206b and the watchband body 206a) can... Figure 7 The watchband 206 shown moves within a range R. After the user wears the watch, they fasten the buckle 204 on the second watchband 202 into one of the buckle holes on the first watchband 201, thus securing the second watchband 202 and the first watchband 201. Optionally, the remaining portion of the first watchband 201 after passing through the buckle can also be passed through the watchband 206. This prevents the remaining portion of the first watchband 201 after passing through the buckle 204 from swinging freely, thus tightening the remaining portion of the first watchband 201 after passing through the buckle 204 and improving the user's wearing experience.

[0119] like Figure 7 As shown, when the second strap 202 and the first strap 201 are fastened, the second strap 202 exerts pressure on the strap clamp 206 in the direction of the user's wrist skin S. This pressure is applied to the clamp head 206b through the clamp body 206a (the clamp head 206b is installed on the side of the clamp body 206a closest to the user's wrist skin S), causing the position of the clamp head 206b to change, contacting and pressing the flexible substrate 207. Under this pressure, the flexible substrate 207 deforms (the flexible substrate 207 bulges towards the user's wrist skin S), causing the pressure sensor array 208 on the flexible substrate 207 to contact the skin S at the user's radial artery T, and apply pressure to the user's radial artery T. The pressure sensor array 208 can then measure the pulse of the user's radial artery T and obtain a pressure signal. When determining the position of the watch band 206, the user can move the watch band 206 within the range of movement R of the watch band 206 by hand, so that the pressure generated by the watch band head 206b acts on the pressure sensor array 208 at the radial artery T of the user's wrist. That is, the position of the pressure applied to the pressure sensor array 208 can be changed by moving the watch band 206.

[0120] The pressure signal measured by the pressure sensor array 208 is transmitted to the FPC connector 210 via the electrical wires 209 on the flexible substrate 207. The FPC connector 210 transmits the pressure signal to the watch body 203, where the processor processes the pressure signal to obtain a pulse wave waveform. Furthermore, some parameter characteristics (e.g., blood pressure, heart rate, arteriosclerosis risk index, etc.) can be obtained from this pulse wave image, and the obtained pulse wave image and parameter characteristics can be displayed to the user on the display of the watch body 203.

[0121] Figure 8 The diagram shown illustrates a user wearing a watch normally without activating the pulse wave measurement at the radial artery. Figure 8 The shown and Figure 7 The difference is: in Figure 7 In the structure shown, the watch head 206b is installed on the side of the watch body 206a closest to the user's wrist skin S. Figure 8 In the illustrated structure, the watch head 206b is mounted on the side of the watch body 206a away from the user's wrist skin S. When the second watch band 202 and the first watch band 201 are fastened, the second watch band 202 exerts pressure on the watch band 206 towards the user's wrist skin S. This pressure does not act on the watch head 206b. In this case, the watch body 206a may or may not contact and compress the flexible substrate 207. Even when the watch body 206a contacts and compresses the flexible substrate 207, the pressure sensor array 208 on the flexible substrate 207 will also contact the radial artery T at the user's wrist. However, the pressure exerted by the watch body 206a on the flexible substrate 207 is relatively small. In this way, when the user is not using the watch to measure pulse waves, that is, when the watch is worn normally, the watch head 206b is installed on the side of the watch body 206a away from the user's wrist skin S. The watch body 206a exerts less or no pressure on the user's wrist, thus improving wearing comfort.

[0122] Optionally, as another possible implementation, when the user is wearing the watch normally without activating the measurement of the radial artery pulse wave, the user can also remove the watch head 206b from the watch body 206a, i.e., in Figure 8 In the example shown, the clasp head 206b may also be omitted.

[0123] In some embodiments of this application, for example, in Figure 7In the example shown, the user can use watch head 206b of different heights to change or adjust the pressure applied to the pressure sensor array 208. For example, the higher the height of the watch head 206b, the greater the pressure applied to the pressure sensor array 208; alternatively, the pressure applied to the pressure sensor array 208 can be adjusted by changing the position of the buckle 204 fastening into the buckle hole 205 on the first watch strap 201. For example, the tighter the second watch strap 202 and the first watch strap 201 are fastened, i.e., the larger the number of the buckle 204 fastening into the buckle hole 205 on the first watch strap, the greater the pressure applied to the pressure sensor array 208.

[0124] In some embodiments of this application, when a user is wearing a watch to measure a pulse wave, the position of the clasp, the position of the strap band, and the height of the strap head can be determined based on the quality of the pressure signal fed back by the watch, provided that the pressure signal quality meets the requirements during measurement.

[0125] For example, such as Figure 7 In the example shown, the processor in the watch body 203 acquires the pressure signal detected by the pressure sensor array 208 in real time and determines whether the pressure signal meets the measurement requirements. If the pressure signal does not meet the measurement requirements, the user can change the pressure applied to the pressure sensor array by changing the position of the buckle 204, moving the position of the strap band 206, or replacing the strap head 206b with one of different heights, thus preventing the pressure signal from meeting the measurement requirements. When the pressure signal meets the measurement requirements, the watch can indicate that the pressure signal quality has met the standard through means such as sound or text. In this case, the user can record and save the height of the strap head 206b, the position of the strap body 206a, and the position of the buckle 204. These parameters will then be provided to the user the next time they use the watch to measure their pulse wave. The user can then use these parameters to wear the watch, use the appropriate height of the strap head 206b, and move the strap body 206a to the appropriate position to begin the measurement. This greatly reduces the complexity of the user's operation during measurement, simplifies the operation process, and further improves the user experience.

[0126] In some embodiments, when a user wears the watch to measure a pulse wave and the pressure signal meets the measurement requirements, the user can record the height γ of the watch band head 206b, the position α of the buckle 204 on the second strap 202 fastened onto the first strap 201, and the position β of the band band 206 on the first strap. For example, the value of α can be the number N of the buckle hole 205 on the second strap 202 where the buckle 204 fastens onto the first strap 201, and the value of β can be the scale value S of the band band 206 on the first strap 201.

[0127] Optionally, in some embodiments of this application, the height γ of the gauge head 206b can also be replaced by the gauge head number. Different gauge heads 206b with different numbers correspond to different heights. The gauge head number can be marked on the gauge head 206b for easy identification by the user.

[0128] For example, Figure 9 The diagram shows the position of the clasp and strap band when a user wears a watch to measure their pulse wave and the pressure signal meets the measurement requirements. Figure 9 As shown, the position β of the strap band 206 is 7.2, and the buckle 204 is inserted into the buckle hole 205 on the first strap 201, numbered 5, meaning the value of α is 5. Assuming the height γ of the strap head 206b is 2mm, the height γ of the strap head 206b, the position β of the strap band 206, and the position α of the buckle 204 can be obtained. The height γ of the strap head 206b and the position α of the buckle 204 can be used to characterize the magnitude of the pressure applied to the pressure sensor array 208, while the position α of the buckle 204 and the position β of the strap band 206 can be used to characterize the position of the user's radial or ulnar artery. The user can record the height γ of the strap head 206b, the position β of the strap band 206, and the position α of the buckle 204, and store these three values ​​in the watch.

[0129] When the user next uses the watch to measure the pulse wave at the radial or ulnar artery, the user can use a watch band head 206b of the same height as the recording head. The watch band head 206b is installed on the watch band body 206a to assemble a watch band band 206. The watch band band 206 is then fitted onto the second watch band 202, and the flexible substrate 207 is fixed to the second watch band 202 via the connecting component 211. Afterwards, according to the recorded position α of the buckle 204, the user fastens the buckle 204 on the second watch band 202 into the corresponding buckle hole 205. According to the recorded position β of the watch band band 206, the user moves the watch band band 206 to the corresponding position, for example... Figure 7As shown, measurement can then begin. If the pressure signal during measurement does not meet the requirements, the pressure can be adjusted by fine-tuning the position of the strap clamp 206 on the second strap 202. If the pressure signal still does not meet the requirements after trying all possible positions of the strap clamp 206 (e.g., all positions within the strap clamp's range of motion R), the user can try changing the buckle 204's insertion position (i.e., buckling the buckle 204 into other numbered buckle holes 205). If the pressure signal still does not meet the requirements when the buckle 204 is fastened into several suitable buckle holes 205 (i.e., several suitable buckle holes based on the user's wrist dimensions and a reasonable tightness when wearing the watch), the user can try replacing the strap head 206b with one of different heights until the pressure signal meets the requirements. In this case, the user can re-record and save the new height γ of the watch head 206b, the position β of the watch band 206, or the position α of the watch buckle 204 in the watch. That is, the user can update the height γ of the watch head 206b, the position β of the watch band 206, or the position α of the watch buckle 204 saved in the watch.

[0130] Figure 10 The diagram shown is a schematic structural diagram of another smartwatch provided in this application. Among them, Figure 10 Figure a shows a schematic structural diagram of the back of a smartwatch (the side opposite the display screen on the watch body). Figure 10 Figure b shows a schematic structural diagram of the front of a smartwatch (the side with the display screen on the watch body). (Compared to...) Figure 2 The difference between the smartwatches shown is that... Figure 10 The watch band clamp 206 shown is movably fitted onto the first watch band 201, and the watch band clamp 206 can move freely on the first watch band 201. Figure 2 The watch band clamp 206 shown is movably fitted onto the second watch band 202, and the watch band clamp can only move within the space formed by the two adjacent connecting parts 211. The structure of the watch band clamp 206 is the same as described above. Figure 3 The structure of the watch band buckle shown is the same; for a detailed description, please refer to [reference needed]. Figure 3 For the sake of brevity, the description will not be repeated here.

[0131] like Figure 10As shown in Figure a, a flexible substrate 207 is provided on the back of the second strap 202. A pressure sensor array 208 is fixed on the flexible substrate 207. Electrical wires 209 are provided on the flexible substrate. An FPC connector 210 is provided between the flexible substrate 207 and the watch body 203. The electrical wires 209 on the flexible substrate 207 are used to transmit the pressure signal detected by the pressure sensor array 208 to the FPC connector 210. The FPC connector 210 is used to transmit the pressure signal to the watch body 203, so that the processor in the watch body 203 can further process the pressure signal.

[0132] like Figure 10 As shown in Figure b, the position markers (i.e., the first identifier) ​​D of the pressure sensor array 208 are displayed on the front side of the second strap. The first identifier is used to indicate to the user the boundary of the area where the pressure sensor array 208 is set. The user can determine the distribution of the pressure sensor array 208 on the back side of the second strap based on the position markers D, thereby moving the position of the strap clamp on the first strap 201 so that the pressure generated by the strap clamp 206 acts on the pressure sensor array 208.

[0133] like Figure 10 As shown in Figure a, the end of the first watch strap 201 furthest from the watch body 203 is provided with a buckle 212, such as... Figure 10 As shown in Figure b, the second watchband has several slots 213 on its front side. These slots 213 do not penetrate the second watchband; that is, the depth of the slots 213 is less than the thickness of the second watchband 202. Each slot 213 is marked with a slot number E (i.e., a second identifier). The buckle 212 and any one of the slots 213 can be detachably connected. The number E on the slot is used to locate the position of the buckle 212 and the slot 213 when they are connected. Optionally, the buckle 212 on the first watchband 201 can also prevent the watchband band 206 from detaching from the first watchband 201.

[0134] Optionally, as one possible implementation, in Figure 10 In the example shown, when the user fastens the first watch strap 201 and the second watch strap 202 to their wrist via the buckle 212 and the slot 213, the first watch strap 201 and the second watch strap 202 do not necessarily need to be fastened to the user's wrist via the buckle 204 and the buckle hole 205. That is to say, in Figure 10 The structure shown may also exclude the buckle 204, buckle hole 205, and buckle hole number N (i.e., the third identifier).

[0135] like Figure 10As shown in Figure b, when the user wears the watch, the clasp 204 is inserted into the clasp hole 205. The clasp hole number N is used to locate the position of the clasp 204. The first watch strap 201 has markings. When the user wears the watch, firstly, the first watch strap 201 is passed through the clasp 204, then the strap band 206 is fitted onto the remaining part of the first watch strap 201 after it has passed through the clasp 204 (that is, the strap band 206 is fitted onto the remaining part of the first watch strap 201 after it has passed through the clasp 204), and finally, the buckle 210 on the first watch strap 201 and one of the slots 213 on the second watch strap 202 are fastened together by the buckle. In other words, in Figure 10 In the structure shown, during pulse wave measurement while the user wears the watch, the watchband 206 is only fitted onto the first watchband 201, not onto the second watchband 202. However... Figure 2 In the structure shown, during the process of measuring pulse waves while the user wears the watch, the watch band 206 needs to be fitted onto the second watch band 202, or it can be fitted onto both the second watch band 202 and the first watch band 201.

[0136] exist Figure 10 In the structure shown, the form of the pressure sensor array 208, as well as the size and arrangement of the multiple pressure sensor units, etc. Figure 6 Similar to the example shown, for a more detailed description, please refer to the [reference needed]. Figure 6 For the sake of brevity, the description will not be repeated here.

[0137] exist Figure 10 In the example shown, as one possible implementation, a flexible substrate 207 is provided on the back of the second watchband 202, and a pressure sensor array 208 is fixed on the flexible substrate 207. For example, the pressure sensor array 208 can be adhered to the flexible substrate 207, and the flexible substrate 207 with the pressure sensor array 208 fixed thereon can be a detachable connection with the second watchband 202. Figure 11 The diagram shown is a schematic structural diagram of a pressure sensor on a second watch band and a side view of the flexible substrate. Figure 11 As shown, the flexible substrate 207 can be detachably connected to the second strap 202 via several connecting parts 211, wherein any one of the connecting parts 211 can be detachably connected to the second strap 202. This facilitates the replacement of the flexible substrate.

[0138] exist Figure 10 In the example shown, as another possible implementation, for example, Figure 12 The diagram shown is a schematic structural diagram of a pressure sensor on a second watch band and a side view of the flexible substrate, as in another example. Figure 12As shown, a pressure sensor array 208 is fixed on the flexible substrate 207. For example, the pressure sensor array 208 can be fixed to the flexible substrate 207 by means of adhesive or the like. The flexible substrate 207 and the second strap 202 can be fixedly connected by means of adhesive or the like.

[0139] Figure 13 The image shown is of a user wearing [a certain item]. Figure 10 The diagram shown illustrates how a watch measures the pulse wave at the radial artery. Figure 13 As shown, when the user wears the watch, the buckle 205 on the second watch strap 202 is fastened into one of the buckle holes on the first watch strap 201. Then, the strap band 206 is placed on the remaining part of the first watch strap 201 after passing through the buckle 204 (that is, the strap band 206 is placed on the remaining part of the first watch strap 201 after the buckle 204). After that, the buckle 212 on the first watch strap 201 is fastened to the slot 213 on the second watch strap 202. When the buckle 212 on the first watch band 201 is fastened to the slot 213 on the second watch band 202, the first watch band 201 exerts pressure on the band clamp 206 (assembled from the clamp head 206b and the clamp body 206a) in the direction of the user's wrist skin S. This pressure is applied to the clamp head 206b (which is mounted on the side of the clamp body 206a closer to the user's wrist) through the clamp body 206a, causing the clamp head 206b to change position and compress the second watch band 202. Under this pressure, the second watch band 202 bulges (i.e., deforms) towards the user's wrist skin S. The flexible substrate 207 on the second watch band 202 deforms accordingly, causing the pressure sensor array 208 on the flexible substrate 207 to come into contact with the skin S at the user's radial artery T and apply pressure to the radial artery T at the user's wrist. In this way, the pressure sensor array 208 can measure the pulse of the user's radial artery T and obtain a pressure signal. When determining the position of the watch band 206, the user can move the watch band 206 back and forth within the range of movement R marked on the second watch band 202 by hand, so that the pressure generated by the watch band head 206b acts on the pressure sensor array 208 at the radial artery T of the user's wrist.

[0140] The pressure signal measured by the pressure sensor array 208 is transmitted to the FPC connector 210 via the electrical wires 209 on the flexible substrate 207. The FPC connector 210 transmits the pressure signal to the watch body 203, so that the processor in the watch body 203 processes the pressure signal to obtain a pulse wave waveform. Furthermore, some parameter characteristics (such as blood pressure, heart rate, arteriosclerosis risk index, etc.) can be obtained from the pulse wave image, so that the obtained pulse wave image and parameter characteristics can be displayed to the user on the display of the watch body.

[0141] When the user is wearing the watch normally and does not need to measure the pulse wave, as a possible implementation, the user can remove the watch band 206 from the first watch band 201 (that is, remove the watch band body 206a and watch band head 206b from the first watch band 201), and then put the watch band 206 back on the first watch band 201 when it is necessary to measure the pulse wave.

[0142] As another possible implementation method, when the user wears the watch normally and does not need to measure the pulse wave, for example... Figure 14 As shown, Figure 14 The diagram shown illustrates a user wearing a watch normally without activating the pulse wave measurement at the radial artery. Figure 14 The shown and Figure 13 The difference is: in Figure 13 In this case, the watch head 206b is installed on the side of the watch body 206a closest to the skin S on the wrist, while... Figure 14 In this design, the watch head 206b is installed on the side of the watch body 206a furthest from the user's wrist skin. That is, when the watch is worn normally, with the watch head 206b installed on the side of the watch body 206a furthest from the user's wrist, the watch body 206a exerts less or no pressure on the user's wrist, thus improving wearing comfort.

[0143] As another possible implementation, when the user wears the watch normally and does not need to measure the pulse wave, the user can also remove the watch head 206b from the watch body 206a.

[0144] In some embodiments of this application, for example, in Figure 13 In the example shown, the user can use gauge clamps of different heights to change or adjust the pressure applied to the pressure sensor array. For example, the higher the gauge clamp, the greater the pressure applied to the pressure sensor array.

[0145] exist Figure 13In the example shown, when a user is wearing a watch to measure their pulse wave, they can determine the positions of the clasp 204, the buckle 212, the strap band 206, and the height of the strap head 206b, based on the quality of the pressure signal returned by the watch. For example, when the user is wearing the watch to measure their pulse wave and the pressure signal meets the measurement requirements, the user can record the height γ of the strap head 206b (i.e., the height of the strap head 206b), the position α of the clasp 204 on the second strap 202 fastening into the buckle hole 205 on the first strap 201 (i.e., the position parameter of the clasp 204), the position β of the strap band 206 on the first strap 201 (i.e., the position of the strap band 206), and the position θ of the buckle 212 on the first strap 201 fastening into the slot 213 on the second strap 202 (i.e., the position of the buckle 212), and store these parameters in the watch. Wherein, the value of α can be the number N of the buckle 204 on the second watch strap 202 that fastens into the buckle hole 205 on the first watch strap 201, the value of β can be the scale value S of the strap band 206 on the first watch strap 201, and the value of θ can be the number E of the buckle 212 on the first watch strap 201 that fastens into the slot 213 on the second watch strap 202.

[0146] The height γ of the watch band 206b and the position θ of the buckle 212 can be used to characterize the pressure applied to the pressure sensor array 208, while the position α of the buckle 204 and the position β of the band 206 can characterize the position of the user's radial or ulnar artery. These parameters are then provided to the user the next time they use the watch to measure their pulse wave. The user can then use these parameters to adjust the watch wearing position, the appropriate height of the watch band, and the position of the band to begin measurement, significantly reducing the complexity of the measurement process, simplifying the procedure, and further improving the user experience. Furthermore, the user can update the saved values ​​of the watch band height γ, band position β, buckle position α, or buckle position θ.

[0147] The following will be based on the user wearing Figure 2 The following is an illustrative process for illustrating a user's pulse wave measurement using a watch as an example.

[0148] Before users first used the watch to measure their pulse wave, for Figure 2The watch shown requires the second strap 202 and flexible substrate 207 to be separated via connecting member 211 before the user wears it. Then, the watch head 206b is installed on the side of the watch body 206a facing (or close to) the user's wrist skin S, specifically on the side of the watch body 206a facing (or close to) the pressure sensor array 208. Optionally, in some embodiments, markings may be present on the second strap 202 to indicate the position of the pressure sensor array 208. The user can then move the strap 206 to the corresponding position area based on these markings, install the watch head 206b on the watch body 206a, and then attach the second strap 202 and flexible substrate 207 together via connecting member 211. Alternatively, in other embodiments, for example... Figure 4 As shown, since the watch band 206 can only move along the second watch band 202 within the range R formed by two adjacent connecting parts 211, the spaces formed by two adjacent connecting parts 211 can be marked on the second watch band 202, and different locations corresponding to different spaces can be marked. For example, space 1 corresponds to the radial artery, and space 2 corresponds to the ulnar artery. In this case, pressure sensor arrays can be set in the areas corresponding to space 1 and space 2 on the flexible substrate 207. According to the measurement needs, the user can separate the second watch band 202 and the flexible substrate 207 through the connecting parts 211, then install the watch band body 206a in the corresponding space of the second watch band 202, then install the watch band head 206b on the side of the watch band body 206a near the user's wrist skin S, install the second watch band 202 and the flexible substrate 207 together through the connecting parts 211, and finally fasten the second watch band 202 and the first watch band 201.

[0149] After the user puts on the watch, for example, Figure 15 The diagram illustrates the display on a watch when a user first measures their pulse wave. The watch and the user's phone can connect (pair) via Bluetooth, and the watch's account can be the phone's account. It should be understood that in other embodiments of this application, the watch and the user's phone can also connect via wireless fidelity technology. The embodiments of this application are not limited to the following methods: connection via near field communication (NFC).

[0150] like Figure 15As shown in Figure a, the watch's main interface displays a "Pulse Wave Measurement" control 1501, which shows the measured items, such as heart rate, blood pressure, and heart rhythm. Heart rate refers to the number of times the heart beats per minute. Heart rhythm refers to the rhythm of the heartbeat; for example, a normal person's heart rhythm is generally sinus rhythm. After the user clicks the "Pulse Wave Measurement" control 1501, the watch's display interface will jump to... Figure 15 The interface shown in Figure b is for the first time the user is using the watch to measure their pulse wave. Figure 15 In the interface shown in Figure b, a prompt box 1502 is displayed, prompting the user: Please move the watch band clamp position. After each movement, wait 3 seconds until you hear a beep, then stop moving. This indicates that by moving the watch band clamp, the pressure sensor can apply pressure to the user's radial or ulnar artery.

[0151] During the process of the user moving the watch band clamp 206 by hand, Figure 7 In the example shown, the second strap 202 exerts pressure on the strap band 206 in the direction of the user's wrist skin S. This pressure is applied to the strap head 206b via the strap body 206a (the strap head 206b is mounted on the side of the strap body 206a closest to the user's wrist skin S), causing the strap head 206b to move and contact (press) the flexible substrate 207. The flexible substrate 207 moves under the pressure, causing the pressure sensor array 208 on the flexible substrate 207 to contact the skin at the user's radial artery T and apply pressure to the skin at the user's radial artery T. In this way, the pressure sensor array 208 can measure the pressure signal.

[0152] During the process of the user moving the watch band 206, Figure 13 In the example shown, the first watch band 201 exerts pressure on the band clamp 206 in the direction of the user's wrist skin S. This pressure is applied to the clamp head 206b through the clamp body 206a (the clamp head 206b is mounted on the side of the clamp body 206a closest to the user's wrist skin S), causing the clamp head 206b to contact and squeeze the second watch band 202. Under this pressure, the second watch band 202 bulges towards the user's wrist skin S, and the flexible substrate 207 on the second watch band 202 deforms accordingly. This causes the pressure sensor array 208 on the flexible substrate 207 to contact the skin at the user's radial artery T and apply pressure to the skin at the user's radial artery T. In this way, the pressure sensor array 208 can measure the pressure signal.

[0153] The pressure signal measured by the pressure sensor array 208 is transmitted to the FPC connector 210 via the electrical wires 209 on the flexible substrate 207. The FPC connector 210 transmits the pressure signal to the watch body 203. The processor in the watch body 203 processes the pressure signal to determine whether the pressure meets the measurement requirements. If the pressure signal meets the measurement requirements, that is, the pressure sensor array 208 on the flexible substrate 207 contacts the radial or ulnar artery at the user's wrist and applies pressure to the radial artery at the user's wrist, the watch can prompt the user through sound (such as a buzzer), vibration, or text: the pressure signal has reached the standard and the watch strap 206 stops moving.

[0154] For example, after the watch emits a beeping sound, the user can stop moving the watchband 206.

[0155] Optionally, after the user moves the watch band clamp 206 to a position where the pressure signal meets the standard, the position of the watch band clamp 206 on the first watch band 201 or the second watch band 202 can be fixed. For example, a groove along the direction of the first watch band 201 or the second watch band 202 can be provided in the watch band body 206a, and a protruding structure can be provided on the second watch band 202 or the first watch band 201 (or, a protruding structure can be provided on the watch band body 206a, and a groove can be provided on the first watch band 201 or the second watch band 202). The protruding structure can be engaged in the groove, and there is friction between it and the inner wall of the groove. When the user moves the watch band clamp 206, this friction must be overcome in order to move the watch band clamp 206 on the first watch band 201 or the second watch band 202. After the strap clamp 206 is moved to the position where the pressure signal meets the standard, the friction force can fix the position of the strap clamp 206 on the first strap 201 or the second strap 202, thereby preventing the strap clamp 206 from moving during the measurement process.

[0156] Optionally, in this embodiment, other fixing devices can also be used to fix the position of the watch band clamp 206 on the second watch band 202 or the first watch band 201. This embodiment does not limit the specific method of fixing the position of the watch band clamp 206 on the first watch band 201 or the second watch band 202.

[0157] After the watch emits a beep, the user stops moving the watchband 206. The watch then begins measuring the pulse wave detected by the radial or ulnar artery at the user's wrist. The watch's display interface can be... Figure 15 The interface shown in Figure b jumps to... Figure 15 The interface shown in Figure c is as follows: Figure 15The interface shown in Figure c displays a prompt box 1503 and a pulse wave waveform 1504. The prompt box 1503 reminds the user to keep their fist slightly clenched and their arm still during the measurement process, thus improving the accuracy of the results. The processor in the watch body 203 processes the pressure signal measured by the pressure sensor array 208 in real time to obtain the pulse wave waveform, which is then displayed to the user on the watch's screen. After the measurement is completed, the watch's display interface can be changed... Figure 15 The interface shown in Figure c jumps to... Figure 15 The interface shown in Figure d is as follows: Figure 15 The interface shown in Figure d displays a prompt box 1505, a "Click to view waveform" control 1506, a prompt box 1507, and a "Click to enter wearing parameters" control 1508.

[0158] The prompt box 1505 indicates to the user that the test is complete. If the user needs to view the final pulse wave waveform, they can click the "Click to view waveform" control 1506. After clicking, the final pulse wave waveform will be displayed on the watch's screen. The pulse wave waveform is obtained by the processor in the watch body 203 processing the pressure signal measured by the pressure sensor array 208 (e.g., differential amplification, filtering, etc.). Further analysis of the pulse wave waveform can extract results of various measurement indicators, such as blood pressure, heart rate, heart condition, and arteriosclerosis risk. The prompt box 1507 displays these measurement results to the user. The "Click to enter wearing parameters" control 1508 prompts the user to enter and save the wearing parameters for future pulse wave measurements. After the user clicks the "Click to enter wearing parameters" control 1508, the watch's display interface can be changed... Figure 15 The interface shown in Figure d jumps to Figure 15 The interface shown in Figure e is as follows: Figure 15 The interface shown in Figure e displays a prompt box 1509, a prompt message 1510, and a "Save" control 1511. The prompt box 1509 prompts the user to input the position of the buckle 204, the position of the strap band 206, and the height of the used strap head 206b.

[0159] It should be understood that Figure 15 The interface shown in Figure e is the one worn by the user. Figure 2 The interface shown is the one displayed when the watch is taking measurements. If the user is wearing a... Figure 10If the watch shown is used for measurement, the prompt box 1509 can also prompt the user to input the position of the buckle 212 (i.e., the number of the buckle 212 on the first strap 201 that is fastened into the slot 213 on the second strap 202) and save the position parameter of the buckle 212.

[0160] In some embodiments, the position α of the buckle 204 can be the number N of the buckle 204 on the second strap 202 fastening into the buckle hole 205 on the first strap 201, the position β of the strap band 206 can be the scale value S of the strap band 206 on the strap 201, and the height γ of the strap head 206b can be obtained from the markings on the strap head 206b. The prompt message 1510 is used to prompt the user to read the position parameters of the buckle 204 and the strap band 206, facilitating the user to correctly determine the buckle position α and the strap band position β. Based on the prompt message, the user obtains the number N of the buckle hole 205, the position β of the strap band 206 on the strap 201, and the height γ of the strap head 206b when the pressure signal meets the measurement requirements, and then inputs the values ​​of these three parameters into the prompt box 1509. After the user outputs the values ​​of these three parameters, clicking the "Save" control 1511 allows the watch to save these parameters for subsequent measurements.

[0161] In some embodiments, when saving these parameters, the watch can communicate with the Bluetooth account (or Bluetooth address) of the phone currently connected to the watch, or with the account currently logged into the watch (e.g., the account currently logged into the watch is the user's phone account), or with the account currently connected to the watch. Account information is stored accordingly. For example, Table 1 shows one possible implementation of storing the clasp position, strap buckle position, and the height of the strap head used on a watch.

[0162] Table 1

[0163]

[0164] As shown in Table 1, after the user first uses the watch to measure the pulse wave, the watch can store three parameters: the buckle position α, the strap band position β, and the height of the used strap head γ, as well as the watch's Bluetooth account (address), the user account logged into the watch, and the connection information during the measurement process. At least one of the following: Watch connection Bluetooth account (address), watch login user account, watch connection... An account can be used to represent a user's identity, that is, to associate these three parameters with the user's identity, so as to facilitate the identification of the user's identity during subsequent measurements.

[0165] It should be understood that Table 1 is merely exemplary and should not limit the specific form in which the watch stores the buckle position, strap band position, and the height of the strap head used in the embodiments of this application. In other embodiments of this application, the watch may also use other methods to store these three parameters, as long as these three parameters can be correlated with the user's identity during the storage process. This application embodiment does not impose any limitations here.

[0166] For example, Figure 16 The example shown is a case of a user's non-first-time use. Figure 2 The diagram shown illustrates the display interface on a watch when measuring a pulse wave. Figure 16 In the example shown, the watch and the user's phone are connected (paired) via Bluetooth. Figure 16 As shown in Figure a, the main interface of the watch displays a "Pulse Wave Measurement" control 1601, which shows the measured items, such as heart rate, blood pressure, and heart rhythm. After the user clicks the "Pulse Wave Measurement" control 1601, the processor in the watch can determine whether the Bluetooth account (or Bluetooth address) currently connected to the watch is in the saved information, that is, whether the Bluetooth account is included in at least one previously saved Bluetooth account paired with the watch. If so, it is determined that the user is not using the watch for pulse wave measurement for the first time. If not, for example, assuming another user is using the user's watch for measurement, the watch needs to be paired with that user's mobile phone, for example, the watch connects to the Bluetooth account of that user's mobile phone. In this case, the processor in the watch can determine that the Bluetooth account currently paired with the watch is not in the saved Bluetooth account information, thus determining that the other user is using the watch for pulse wave measurement for the first time.

[0167] It should be understood that, in this embodiment of the application, in addition to using the Bluetooth account currently paired with the watch to determine whether the user is taking the measurement for the first time, the user account currently logged into the watch or the mobile phone currently connected to the watch can also be used. Account information, etc., is used to determine whether a user is taking the measurement for the first time. This application's embodiments are not limited thereto.

[0168] In some embodiments, if it is determined that a user is using the watch for the first time to measure their pulse wave, the measurement process can be referenced to... Figure 15 For the sake of brevity, the description will not be repeated here.

[0169] In some embodiments, if it is determined that a user is not using the watch for the first time to measure their pulse wave, the watch's display can jump to... Figure 16 The interface shown in Figure b shows that, since the user is not using the watch to measure pulse waves for the first time, as... Figure 16The interface shown in Figure b displays a prompt box 1602 and a prompt message 1603. The prompt box 1602 is used to remind the user of the reference positions for the clasp, the strap band, and the height of the strap head when wearing the watch. For example, the watch can determine these three parameters corresponding to the currently connected Bluetooth account from stored data and display them to the user. The prompt box 1602 indicates the positions of the clasp and strap band parameters, facilitating correct wearing according to the parameters. The user fastens the clasp 204 to the corresponding position and moves the strap band 206 to the corresponding position. Based on the parameters indicated in the prompt box 1602, if the user's watch is... Figure 7 As shown in the diagram, the user first needs to select the appropriate height of the watch head 206b and install it on the watch body 206a. Then, the flexible substrate 207 and the second watch strap 202 are fixed together via the connecting component 211. Afterward, the watch buckle 204 is fastened to the appropriate position to put on the watch. Once the watch is on, the watch body 206a is moved to the appropriate position to begin measurement. If the user's watch is... Figure 13 As shown in the structure, the user can first fasten the buckle 204 in the corresponding position to wear the watch. After wearing the watch, install the watch head 206b of the corresponding height on the watch body 206a, move the watch body 206a to the corresponding position, and then connect the buckle 212 on the first watch strap 201 with the slot 213 on the second watch strap 202. Then the measurement can begin.

[0170] After the user puts the watch on according to the parameters prompted in prompt box 1602, the processor on the watch can acquire the pressure signal measured by the pressure sensor array in real time and determine whether the pressure meets the measurement requirements.

[0171] When the pressure signal meets the measurement requirements (i.e., the signal quality is up to standard), the watch's display interface can be changed from... Figure 16 Jump to image b in the image. Figure 16 The interface shown in Figure c is as follows. Figure 16 The interface shown in Figure c displays a prompt box 1604 and a pulse waveform diagram 1605. After the measurement is completed, the watch's display interface can be changed from... Figure 16 Jump to diagram c in the middle Figure 16 The interface shown in Figure d is as follows: Figure 16 The interface shown in Figure d displays a prompt box 1606, a "Click to view waveform" control 1607, and a prompt box 1608.

[0172] Optional, Figure 16The interface shown in Figure d can also include a "Click to view or update wearing parameters" control 1609. For example, if the height of the watch band 206b used by the user during measurement is different from the height of the watch band indicated in prompt box 1602, but the positions of the watch band 206 and the buckle 204 are both worn according to the parameters indicated in prompt box 1602, then according to... Figure 16 After the measurement process shown is completed, the user can click control 1609. After clicking control 1609, the watch's display interface can be... Figure 15 The interface shown in Figure 1 is similar to that shown in Figure 2. Users can update at least one of the three parameters and save the changes on this interface.

[0173] for Figure 16 The descriptions of other controls or prompts in the interface shown in Figures C and D can be found in [reference]. Figure 15 The descriptions of the interfaces shown in diagrams c and d are omitted here for the sake of brevity.

[0174] Figure 17 The example shown is another instance of a user's non-first-time use. Figure 2 The diagram shown illustrates the display interface on a watch when measuring a pulse wave. Figure 17 The descriptions of the interfaces shown in Figures a and b can be found in [reference]. Figure 16 The descriptions of the interfaces shown in Figures a and b are omitted here for the sake of brevity.

[0175] If the pressure signal does not meet the measurement requirements (i.e., the signal quality is substandard), the watch's display interface can be changed. Figure 17 Jump to image b in the image. Figure 17 The interface shown in Figure c is as follows. Figure 17 The interface shown in Figure c displays a prompt box 1610, instructing the user to: Please move the watchband 206, waiting 3 seconds after each movement until a beep is heard before stopping. This prompts the user to move the watchband 206 so that the pressure sensor can apply pressure to the user's radial or ulnar artery. For example, after the watch beeps, the user stops moving the watchband 206, and the watch begins measuring the pulse wave at the user's wrist where the radial or ulnar artery is located. The watch's display interface can be... Figure 17 The interface shown in Figure c jumps to... Figure 17 The interface shown in Figure d is as follows: Figure 17 The interface shown in Figure d displays a prompt box 1612 and a pulse waveform 1611. The prompt box 1612 reminds the user to keep their fist slightly clenched and their arm still during the measurement process, thus improving the accuracy of the results. After the measurement is complete, the watch's display interface can be changed from... Figure 17 The interface shown in Figure d jumps to Figure 17The interface shown in Figure e is as follows: Figure 17 The interface shown in Figure e displays a prompt box 1613, a "Click to view waveform" control 1614, a prompt box 1615, and a "Click to update wearing parameters" control 1616.

[0176] For descriptions of prompt box 1613, "Click to view waveform" control 1614, and prompt box 1615, please refer to... Figure 15 The corresponding descriptions in diagram d are omitted here for the sake of brevity.

[0177] Regarding the "Click to Update Wearing Parameters" control 1616, since this is not the first time the user has used the watch to measure pulse waves, the watch has previously stored three parameters corresponding to the user: the position of the clasp 204, the position of the strap band 206, and the height of the band head 206b. Because the measurement signal is substandard when using these three wearing parameters, it indicates that at least one of these parameters is inaccurate and needs to be updated. After the user clicks the "Click to Update Wearing Parameters" control 1615, the watch's display interface can be changed from... Figure 17 The interface shown in Figure e will redirect to... Figure 17 The interface shown in Figure f is as follows: Figure 17 The interface shown in Figure f displays a prompt box 1617, a prompt message 1618, and a "Save" control 1619. The prompt box 1617 prompts the user to input parameters for the new position of the buckle 204, the new position of the strap band 206, and the height of the newly used strap head 206b. If the user only moves the strap clamp 206 to achieve the required pressure signal, the position parameter of the strap clamp 206 can be updated to match the parameter of its new position. If the user moves both the strap clamp 206 and the buckle 204 to achieve the required pressure signal, the position parameter of the strap clamp 206 can be updated to match the parameter of its new position, and the position parameter of the buckle 204 can be updated to match the new buckle hole 205 number N. If changing the position of the strap clamp 206 and the buckle 204 fails to achieve the required pressure signal, the user can replace the clamp head 206b with one of a different height. Optionally, if the user replaces the clamp head 206b with one of a different height and re-measures, the following steps can be taken: Figure 16 or Figure 17 The process shown involves re-measuring using a different watch band head 206b. After the measurement, the three parameters—the buckle position, the band position, and the height of the watch band head—are updated and stored. These parameters will then be displayed to the user the next time they use the watch to measure their pulse wave, greatly reducing the complexity of the measurement process, simplifying the operation, and further improving the user experience.

[0178] For users wearing Figure 10 The image shows the watch measuring pulse waves, and the watch's display interface. Figures 15 to 17 Similar to the example shown, the difference lies in that when prompting the user to output wearing parameters or providing the user with wearing reference parameters, in addition to including the position of the clasp 204, the position of the strap band 206, and the height of the strap head 206b, it may also include the position parameter of the buckle 212. Apart from this, the rest of the display interface and... Figures 15 to 17 The interface shown is similar, so for the sake of simplicity, it will not be described in detail here.

[0179] The present application provides a wristwatch for measuring pulse waves, comprising a watch body, a graduated watch strap connected to the watch body, a detachable pressure sensor array mounted on the watch strap, and a watch strap band. The watch strap band is assembled from a band body and band ends, and the same band body can be used with band ends of different heights. After the user puts on the watch, the strap clamp is fitted onto the strap. The tightened strap applies pressure to the strap clamp. By moving the strap clamp on the strap, the clamp (clamp head) presses against the pressure sensor array on the strap. This pressure sensor array presses against the user's pulse point (e.g., the radial or ulnar artery), causing the pressure sensor array to measure the pulse and display the pulse wave on the watch's display. During measurement, the user can change the applied pressure by altering the buckle position, moving the clamp body, or changing the height of the clamp head. This allows the user to actively adjust the applied pressure, making the wearing and measurement process simple and convenient. Furthermore, the watch records the buckle position, strap clamp position, and clamp head height during the measurement process, providing these parameters to the user the next time they use the watch to measure their pulse wave. This significantly reduces the complexity of the measurement process, simplifies the operation, and further improves the user experience.

[0180] This application also provides a wrist-type electronic device for measuring pulse waves. The electronic device includes a display, a wristband connected to the display, an airbag fixed to the wristband, a flexible substrate fixed to the airbag, and a pressure sensor array fixed to a first region of the flexible substrate. There is a space (i.e., no contact) between the first region of the airbag and the first region of the flexible substrate, and a second region of the airbag is in contact with the second region of the flexible substrate. The second region of the airbag is made of a rigid material, while the first region of the airbag is made of an elastic material (e.g., rubber). When a user uses this electronic device to measure a pulse wave, the airbag is inflated, causing the first region of the airbag to contact the first region of the flexible substrate and compress the flexible substrate. This causes the pressure sensor array on the flexible substrate to contact the user's pulse point, and the pressure sensor array measures the pulse at the user's pulse point (e.g., the radial or ulnar artery), thereby obtaining the pulse wave and displaying it on the display. Its wearing and measurement process is simple, the pressure application method is flexible and comfortable, and it applies pressure to a local area of ​​the user's wrist (that is, the first area of ​​the airbag applies pressure to the user's wrist), rather than applying pressure to the entire or most area of ​​the user's wrist. This can improve the user's comfort when using the watch to measure pulse waves and enhance the user experience.

[0181] The following examples illustrate the wrist-worn wearable device for measuring pulse waves provided in this application.

[0182] In the examples below, a smartwatch will be used as an example of an electronic device. However, this should not limit the embodiments of this application. For example, in the embodiments of this application, the electronic device may also be other types of electronic devices, such as smart bracelets or other wrist-worn wearable devices. The embodiments of this application are not limited herein.

[0183] Figure 18 The diagram shown is a schematic structural diagram of a smartwatch provided in this application. Wherein, Figure 18 The schematic structural diagram shown is of the back of the smartwatch (i.e., the side opposite the display screen on the watch body), as follows: Figure 18 As shown in the embodiment of this application, the smartwatch includes a first watch strap 201 and a second watch strap 202. One end of the first watch strap 201 is connected to the watch body 203, and one end of the second watch strap 202 is connected to the watch body 203. A buckle 204 is provided at one end of the second watch strap 202, and a buckle hole 205 is provided on the first watch strap 201. After the user wears the watch, the buckle 204 passes through the buckle hole 205, so that the watch is fixed on the user's wrist.

[0184] like Figure 18As shown, an airbag 214 is provided on the back of the second watch strap 202. Optionally, the airbag 214 can be fixed (e.g., by adhesive) to the second watch strap 202, or the connection between the airbag 214 and the second watch strap 202 can be detachable. A flexible substrate 207 is fixed to the airbag 214, and a pressure sensor array 208 is fixed to the flexible substrate 207. For example, the pressure sensor array 208 can be adhered to the flexible substrate 207, or the connection between the pressure sensor array 208 and the flexible substrate 207 can be electrical. Electrical wires 209 are provided on the flexible substrate 207. Optionally, an FPC connector 210 is provided between the flexible substrate 207 and the watch body 203. The electrical wire 209 is used to transmit the pressure signal detected by the pressure sensor array 208 at the user's radial or ulnar artery to the FPC connector 210. The FPC connector 210 is used to transmit the pressure signal to the watch body 203. The processor in the watch body 203 processes the pressure signal (e.g., filtering) to obtain a pulse wave image. Furthermore, some parameter features (e.g., blood pressure, heart rate, arteriosclerosis risk index, etc.) can be extracted from the pulse wave image, so that the obtained pulse wave image and parameter features can be displayed to the user on the display of the watch body.

[0185] like Figure 18 As shown, an air passage interface 215 is provided at the connection between the airbag 214 and the watch body 203. A micro air pump 216 is provided inside the watch body 203. The micro air pump 216 can inflate the airbag 214 through the air passage interface 215 to make the airbag expand, or it can also transmit the air in the airbag 216 to the micro air pump for release through the air passage interface 215.

[0186] After the user wears the watch and inflates the airbag 214, the airbag 214 will expand and squeeze the flexible substrate 207, so that the pressure sensor array 208 on the flexible substrate 207 comes into contact with the user's radial or ulnar artery, and the pressure sensor array 208 can measure the pressure signal of the user's radial or ulnar artery.

[0187] It should be understood that, Figure 18 This is merely an example and should not impose any limitations on the structure of the smartwatch in the embodiments of this application.

[0188] Figure 19 The example shown is one. Figure 18 The diagram shown is a schematic side view of the airbag 214, pressure sensor array 208, and flexible substrate 207 on the second watch strap of the watch. Figure 19 As shown, a pressure sensor array 208 is fixed on the flexible substrate 207.

[0189] In this embodiment, the arrangement position of the pressure sensor array 208 can be determined through data statistics. For example, the location areas of the radial or ulnar arteries on the second watchband 202 when multiple users wear the watch can be statistically analyzed to determine the position of the pressure sensor array 208 on the flexible substrate 207. For example, in Figure 19 In the example shown, the pressure sensor array 208 is disposed on the first region of the flexible substrate 207.

[0190] like Figure 19 As shown, the flexible substrate 207 can be fixed to the airbag 214 by adhesive or electrical connection. The airbag 214 can be detachably connected to the second strap 202 through a plurality of connecting parts 217, wherein any one of the connecting parts 217 can be detachably connected to the second strap 202. For example, the connecting part 217 can be a buckle, etc., and the embodiments of this application are not limited thereto.

[0191] like Figure 19 As shown, an air passage interface 215 is provided at the connection between the airbag 214 and the watch body 203. A micro air pump 216 is provided inside the watch body 203. The micro air pump 216 can inflate the airbag 214 through the air passage interface 215 to make the airbag 214 expand, or it can also transfer the air in the airbag 214 to the micro air pump 216 for release through the air passage interface 215.

[0192] like Figure 19 As shown, there is a space between the first region 207a of the flexible substrate and the airbag 214. That is, when the airbag 214 is not inflated, the first region 207a of the flexible substrate and the airbag 214 are not in contact. In this embodiment, the area on the airbag 214 that is not in contact with the flexible substrate 207a can be referred to as the first region 214a of the airbag. That is, the first region 214a of the airbag and the first region 207a of the flexible substrate are not in contact when the airbag 214 is not inflated, and there is a space between them. This can prevent the airbag 214 from generating excessive pressure on the pressure sensor array 208 during inflation, and prevent the pressure sensor array 208 from undergoing large deformation and damage, which would affect the detection results.

[0193] In this embodiment, the regions on the airbag 214 other than the first region 214a can be referred to as the second region 214b of the airbag, and the regions on the flexible substrate other than the first region 207a can be referred to as the second region 207b of the flexible substrate. Figure 19 As shown, the second region 214b of the airbag and the second region of the flexible substrate 207b are in contact when the airbag 214 is not inflated, and there is no space between them.

[0194] In some embodiments, the first region 214a of the airbag can be made of an elastic material (e.g., rubber). After the airbag is inflated, the first region 214a can expand and deform, causing it to contact and compress the first region 207a of the flexible substrate. This causes the pressure sensor array 208 of the first region 214a on the flexible substrate to contact the user's radial or ulnar artery, applying pressure to the artery and thus measuring a pressure signal. The pressure signal can be transmitted to the FPC connector 210 via the electrical wires 209 on the flexible substrate 207. The FPC connector 210 transmits the pressure signal to the watch body 203, where a processor further processes the pressure signal.

[0195] The second region 214b of the airbag is made of a rigid material, and will not expand or deform after the airbag 214 is inflated. That is, in this embodiment, after the airbag 214 is inflated, a localized area of ​​the airbag (i.e., the first region 214a) exerts pressure on the flexible substrate 217, while other areas of the airbag (i.e., the second region 214b) do not exert pressure on the flexible substrate 207 in contact with it. In other words, this embodiment uses a localized airbag pressurization method, which requires less pressure compared to full airbag pressurization. Furthermore, the pressure is applied to a localized area of ​​the user's wrist (i.e., the radial or ulnar artery), rather than to the entire wrist or most of it. This improves user comfort when measuring pulse waves with the watch and enhances the user experience.

[0196] It should be understood that Figure 19 The arrangement shown should not limit the distribution of the pressure sensor array 208 on the flexible substrate 207 in this embodiment. In other embodiments of this application, the pressure sensor array 208 can be placed at other locations on the flexible substrate 207 as needed for measurement, as long as the pressure sensor array 208 can contact the radial or ulnar artery at the user's wrist during measurement. This embodiment does not impose any limitations on this.

[0197] Figure 20 The example shown is one. Figure 18 The diagram shows a schematic structural representation of the air bladder on the second watchband in its inflated state, the pressure sensor, and the flexible substrate viewed from the side. Figure 20As shown, when the airbag 214 is inflated by the micro air pump 216 in the watch body, the first region 214a of the airbag, which can be made of an elastic material, can expand and deform. The second region 214b of the airbag, made of a rigid material, will not expand or deform. Therefore, the first region 214a of the airbag will expand and deform, causing it to contact and compress the first region 207a of the flexible substrate. That is, the first region 214a of the airbag will exert pressure on the first region 207a of the flexible substrate. Under this pressure, the first region 207a of the flexible substrate deforms, causing the pressure sensor array 208 of the first region 207a on the flexible substrate to contact the skin S on the wrist surface at the radial or ulnar artery, applying pressure to the skin S and thus measuring the pressure signal.

[0198] exist Figure 19 and Figure 20 The structure and dimensions of the pressure sensor array 208 in the watch shown can be referenced. Figure 6 For the sake of brevity, the description of the pressure sensor array will not be repeated here.

[0199] Figure 21 The image shown is of a user wearing [a certain item]. Figure 19 or Figure 20 The diagram shown illustrates how a watch measures the pulse wave at the radial artery. Figure 21 As shown, the user fastens the buckle 204 on the second watch strap 202 into one of the buckle holes on the first watch strap 201. After wearing the watch, when the user begins to measure the pulse wave, the user can operate on the display of the watch to control the micro air pump 216 in the watch body 203 to inflate the airbag 214 in the second watch strap through the air passage interface 215. The first region 214a of the airbag will expand and deform, so that the first region 214a of the airbag contacts and compresses the first region 207a of the flexible substrate. That is, the first region 214a of the airbag will exert pressure on the first region 207a of the flexible substrate. The first region 207a of the flexible substrate deforms under the pressure, so that the pressure sensor array 208 of the first region 208a on the flexible substrate contacts the skin S of the user's wrist at the radial artery, and applies pressure to the radial or ulnar artery, thereby measuring the pressure signal.

[0200] The pressure signal measured by the pressure sensor array 208 is transmitted to the FPC connector 210 via the electrical wires 209 on the flexible substrate 207. The FPC connector 210 transmits the pressure signal to the watch body 203, so that the processor in the watch body 203 processes the pressure signal to obtain a pulse wave waveform. Furthermore, some parameter characteristics (such as blood pressure, heart rate, arteriosclerosis risk index, etc.) can be obtained from the pulse wave image, so that the obtained pulse wave image and parameter characteristics can be displayed to the user on the display of the watch body.

[0201] During the inflation of the air bladder 214 by the miniature air pump 216 in the watch body 203 through the air passage interface 215, as a possible implementation, since the processor on the watch can acquire the pressure signal measured by the pressure sensor array 208 in real time and determine whether the pressure meets the measurement requirements, the processor on the watch can determine in real time whether the pressure signal measured by the pressure sensor array 208 meets the measurement requirements. If the pressure signal meets the measurement requirements, the processor on the watch can control the miniature air pump 216 to stop inflating the air bladder 214, and the air bladder 214 can maintain the corresponding pressure until the measurement is completed. During the measurement process, the processor on the watch can also adjust the air pressure in the air bladder 214 in real time according to the pressure signal measured by the pressure sensor array 208.

[0202] In the process of the miniature air pump 214 inflating the air bladder 214 through the air passage interface 215 within the watch body, as another possible implementation, a pressure threshold can be preset. Inflation of the air bladder 214 can be stopped when the air pressure in the air bladder 214 reaches the preset threshold. After the air pressure in the air bladder reaches the preset threshold, the processor on the watch can determine whether the pressure signal measured by the pressure sensor array 208 meets the measurement requirements. If it does not meet the requirements, the processor on the watch can control the miniature air pump 216 to adjust the air pressure in the air bladder 214, thereby adjusting the pressure exerted by the air bladder 214 on the pressure sensor, and thus adjusting the pressure signal measured by the pressure sensor array 208, until the pressure signal measured by the pressure sensor array 208 meets the measurement requirements.

[0203] In some embodiments, a pressure sensor can be provided inside the watch body 203 to measure the air pressure in the air bladder 214. In this way, the processor in the watch can determine whether the air pressure in the air bladder 214 has reached a preset threshold. Alternatively, the processor in the watch can also determine whether the air pressure in the air bladder 214 has reached a preset threshold based on the pressure signal measured by the pressure sensor array 208 on the watch band, and stop inflating the air bladder 214 when the air pressure in the air bladder 214 reaches the preset threshold. In this embodiment, the specific implementation process for the watch to determine whether the air pressure in the air bladder 214 has reached the preset threshold is not limited.

[0204] The following example illustrates how users wear... Figures 18 to 20 The illustration shows a schematic procedure for measuring pulse waves with a watch.

[0205] Before the user uses the watch to measure the pulse wave, the user wears the watch on their wrist and fastens the second watch strap 202 and the first watch strap 201 with the buckle 204. Figure 22 The image shown is a schematic diagram of the display on a watch when a user measures their pulse wave. Figure 22 As shown in Figure a, a "Pulse Wave Measurement" control 2201 is displayed on the main interface of the watch, and the control 2201 displays the items to be measured, such as heart rate, blood pressure, and heart rhythm. After the user clicks the "Pulse Wave Measurement" control 2201, the processor in the watch can control the micro air pump 216 to inflate the airbag 214 through the air passage interface 215. During the inflation of the airbag 215, the first region 214a of the airbag will expand and deform, so that the first region 214a of the airbag contacts and compresses the first region 207a of the flexible substrate. That is, the first region 214a of the airbag will exert pressure on the first region 207a of the flexible substrate. Under the action of pressure, the first region 207a of the flexible substrate deforms, thereby causing the pressure sensor array 208 of the first region 207a on the flexible substrate to contact the skin S of the user's wrist at the radial artery, and apply pressure to the radial artery, thereby measuring the pressure signal. The pressure signal measured by the pressure sensor array 208 is transmitted to the FPC connector 210 via the electrical wires 209 on the flexible substrate 207. The FPC connector 210 transmits the pressure signal to the meter body 203, where the processor processes the pressure signal to determine whether the pressure signal meets the measurement requirements.

[0206] If the pressure signal does not meet the measurement requirements, the processor on the watch can control the micro air pump 216 to adjust the air pressure in the air bladder 214, thereby adjusting the pressure exerted by the air bladder 214 on the pressure sensor array 208, and thus adjusting the pressure signal measured by the pressure sensor array 208, until the pressure signal measured by the pressure sensor array 208 meets the measurement requirements. After the pressure signal meets the measurement requirements, the watch's display interface can switch to... Figure 22 The interface shown in Figure b is as follows: Figure 22 The interface shown in Figure b displays a prompt box 2202 and a pulse wave waveform 2203. The prompt box 2202 reminds the user to keep their fist slightly clenched and their arm still during the measurement process, thus improving the accuracy of the results. The processor in the watch can process the pressure signal measured by the pressure sensor array 208 in real time to obtain the pulse wave waveform, which is then displayed to the user on the watch's screen. After the measurement is completed, the watch's display interface can be changed... Figure 22 The interface shown in Figure b jumps to... Figure 22 The interface shown in Figure c is as follows: Figure 22 The interface shown in Figure c displays a prompt box 2204, a "Click to view waveform" control 2205, and a prompt box 2206.

[0207] The prompt box 2204 indicates to the user that the test is complete. If the user needs to view the final pulse wave waveform, they can click the "Click to view waveform" control 2205. After clicking, the final pulse wave waveform will be displayed on the watch's screen. The pulse wave waveform is obtained by the processor in the watch body processing the pressure signal measured by the pressure sensor array 208 (e.g., differential amplification, filtering, etc.). Furthermore, the processor in the watch body can also analyze the pulse wave waveform to extract the results of some measurement indicators, such as blood pressure, heart rate, heart condition, and arteriosclerosis risk. The prompt box 2206 is used to prompt the user with the results of these measurement indicators for viewing.

[0208] In some embodiments, after the measurement is completed, the processor in the watch can also release the air in the airbag 214 by controlling the micro air pump 216.

[0209] The wristwatch for measuring pulse waves provided in this application has an air bladder fixed to the watchband, a flexible substrate fixed to the air bladder, and a pressure sensor array fixed to a first region of the flexible substrate. There is a space (i.e., no contact) between the first region of the air bladder and the first region of the flexible substrate, and a second region of the air bladder is in contact with the second region of the flexible substrate. The second region of the air bladder is made of a rigid material, while the first region of the air bladder is made of an elastic material (e.g., rubber). When a user wears the watch to measure their pulse wave, a miniature air pump inflates the air bladder, causing the first region of the air bladder to expand. The first region of the air bladder then contacts and compresses the first region of the flexible substrate, causing the pressure sensor array on the flexible substrate to contact the user's pulse point. The pressure sensor array measures the pulse at the user's pulse point (e.g., the radial or ulnar artery), thereby obtaining the pulse wave and displaying it on the watch. The wearing and measurement process is simple. Because it uses a local airbag pressure method, the required pressure is less. Moreover, it applies pressure to a local area of ​​the user's wrist (i.e., the radial or ulnar artery in the user's wrist), rather than applying pressure to the entire or most area of ​​the user's wrist. This can improve the user's comfort when using the watch to measure pulse waves and enhance the user experience.

[0210] It should be understood that the above description is merely to help those skilled in the art better understand the embodiments of this application, and is not intended to limit the scope of the embodiments of this application. Based on the examples given above, those skilled in the art can obviously make various equivalent modifications or changes. For example, some components in the above embodiments may be unnecessary, or new components may be added. Alternatively, any combination of two or more of the above embodiments may be used. Such modifications, changes, or combinations also fall within the scope of the embodiments of this application.

[0211] It should also be understood that the above description of the embodiments of this application focuses on highlighting the differences between the various embodiments. Any similarities or differences not mentioned can be referred to each other. For the sake of brevity, they will not be repeated here.

[0212] It should also be understood that the methods, situations, categories, and classifications of embodiments in this application are for the convenience of description only and should not constitute a special limitation. Various methods, categories, situations, and features in embodiments can be combined without contradiction.

[0213] It should also be understood that, in the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0214] It should also be understood that the various examples, watch interfaces, and user operations described above are merely illustrative and do not constitute a specific limitation on the embodiments of this application. For example, in some other embodiments of this application, the icons on the interfaces displayed on the watches provided above may include more or fewer icons than those shown on any of the interfaces depicted above, or some icons may be combined, split, or different, etc. The embodiments of this application do not impose any limitations here.

[0215] It should be noted that all or part of the above embodiments provided in this application (e.g., part or all of any feature) can be arbitrarily combined or combined with each other.

[0216] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic device, comprising: The electronic device includes: The watch body (203), the first watch strap (201), the second watch strap (202), and the first component (206); One end of the first watch strap (201) is connected to the watch body (203), and one end of the second watch strap (202) is connected to the watch body (203); A flexible substrate (207) is provided on the first surface of the second strap (202), and a pressure sensor array (208) is fixed on the flexible substrate (207). The electronic device also includes an electrical wire (209) for connecting the pressure sensor array (208) and the watch body (203). The first component (206) is movably sleeved on the first strap (201). The first component (206) directly squeezes the flexible substrate (207) on the second strap (202) and applies pressure to the flexible substrate (207) on the second strap (202). The pressure sensor array (208) on the flexible substrate (207) is used to contact the user's skin and measure the pulse pressure signal under the pressure of the first component (206). The electrical conductor (209) is used to transmit the pressure signal to the meter body (203), and the meter body (203) is used to process the pressure signal to obtain the user's pulse wave.

2. The electronic device of claim 1, wherein, The first component (206) includes a first element (206a) and a second element (206b). The first element (206a) is movably sleeved on the first strap (201), and the second element (206b) is fixed on the first element (206a). The second element (206b) is located between the first strap (201) and the second strap (202).

3. The electronic device of claim 1 or 2, wherein, The other end of the first watch strap (201) is provided with a buckle (212), and the second side of the second watch strap (202) is provided with a plurality of slots (213). The buckle (212) and the plurality of slots (213) are used to fasten the first watch strap (201) and the second watch strap (202).

4. The electronic device of claim 2, wherein, The first watch strap (201) has a buckle (212) at one end, and the second watch strap (202) has a plurality of slots (213) on its second surface. The first watch strap (201) has a buckle hole (205), and the second watch strap (202) has a buckle (204) at one end. The buckle hole (205) and the buckle (204) are used to fasten the first watch strap (201) and the second watch strap (202). The first component (206) is movably sleeved on the remaining part of the first watch strap (201) after it passes through the buckle (204). The buckle (212) and the slots (213) are used to fasten the remaining part of the first watch strap (201) after it passes through the buckle (204) to the second watch strap (202).

5. The electronic device of claim 1, 2, or 4, wherein, The flexible substrate (207) is detachably connected to the second strap (202) via multiple connecting components (211), or the flexible substrate (207) is fixedly connected to the second strap (202). A first mark is provided on the second surface of the second strap (202), and the first mark is used to indicate the distribution area of ​​the pressure sensor array (208) on the second strap (202).

6. The electronic device of claim 4, wherein, The second side of the second strap (202) is also provided with a second mark, which is used to locate the position where the buckle (212) is fastened into the slot (213).

7. The electronic device of claim 4, wherein, A third mark is provided on the second surface of the first watch strap (201), the third mark being used to locate the position where the watch buckle (204) is fastened into the watch buckle hole (205).

8. The electronic device of claim 1, 2, 4, 6, or 7, wherein, The second surface of the first watch strap (201) is also provided with a scale, which is used to locate the position of the first component (206) on the first watch strap (201).

9. The electronic device according to claim 2, characterized in that, The second element (206b) is provided with a fourth mark, which is used to indicate the height of the second element (206b).

10. The electronic device according to claim 4 or 7, characterized in that, When measuring a pulse wave using the electronic device, a first interface is displayed on the screen of the device (203), the first interface being used for input or updating: The position parameters of the buckle (204) fastening into the buckle hole (205), the position parameters of the first element (206a) on the first strap (201), the height of the second element (206b), and the position parameters of the buckle (212) fastening into the slot (213).

11. The electronic device according to claim 1, 2, 4, 6, 7, or 9, characterized in that, The electronic device also includes a flexible printed circuit board (FPC) connector (210), and the electrical wires (209) on the flexible substrate (207) are connected to the body (203) through the FPC connector (210). The FPC connector (210) is used to transmit the pressure signal to the body (203).

12. The electronic device according to claim 1, 2, 4, 6, 7, or 9, characterized in that, The pressure sensor array (208) includes multiple pressure sensor units, each of which has a size less than or equal to a preset threshold.

13. The electronic device according to claim 2, characterized in that, The first element (206a) and the second element (206b) are assembled to form the first component (206), or the first component (206) is integrally formed.

14. An electronic device, characterized in that, The electronic device includes: The watch body (203), the second watch strap (202), and the first component (206); One end of the second watch strap (202) is connected to the watch body (203); A flexible substrate (207) is provided on the first surface of the second strap (202), and a pressure sensor array (208) is fixed on the flexible substrate (207). The electronic device also includes an electrical wire (209) for connecting the pressure sensor array (208) and the watch body (203). The first component (206) is movably sleeved on the second strap (202), and at least a portion of the first component (206) is located within the space enclosed by the flexible substrate (207) and the second strap (202); The first component (206) directly contacts and squeezes the flexible substrate (207) on the second strap (202), applying pressure to the flexible substrate (207). The pressure sensor array (208) on the flexible substrate (207) is used to contact the user's skin and measure the pulse pressure signal under the pressure of the first component (206). The electrical conductor (209) is used to transmit the pressure signal to the meter body (203), and the meter body (203) is used to process the pressure signal to obtain the user's pulse wave.

15. The electronic device according to claim 14, characterized in that, The first component (206) includes a first element (206a) and a second element (206b). The first element (206a) is movably sleeved on the second strap (202), and the second element (206b) is fixed on the first element (206a). The second element (206b) is located within the space enclosed by the flexible substrate (207) and the second strap (202).

16. The electronic device according to claim 15, characterized in that, The flexible substrate (207) is detachably connected to the second strap (202) via multiple connecting parts (211), and the distance between two adjacent connecting parts (211) on the second strap (202) is the range of motion of the first element (206a) on the second strap (202).

17. The electronic device according to claim 15 or 16, characterized in that, The electronic device further includes a first watch strap (201), one end of which is connected to the watch body (203). The first watch strap (201) has a buckle hole (205), and the other end of the second watch strap (202) has a buckle (204). The buckle hole (205) and the buckle (204) are used to fasten the first watch strap (201) and the second watch strap (202). The second watch strap (202) is used to apply pressure to the first element (206a). The first element (206a) applies pressure to the second element (206b) under the action of the pressure. The second element (206b) applies pressure to the flexible substrate (207) under the action of the pressure.

18. The electronic device according to claim 17, characterized in that, A third mark is provided on the second surface of the first watch strap (201), the third mark being used to locate the position where the watch buckle (204) is fastened into the watch buckle hole (205).

19. The electronic device according to claim 18, characterized in that, The second surface of the first watch strap (201) is also provided with a scale, which is used to locate the position of the first component (206) on the second watch strap (202).

20. The electronic device according to claim 15, 16, 18 or 19, characterized in that, The second element (206b) is provided with a fourth mark, which is used to indicate the height of the second element (206b).

21. The electronic device according to claim 17, characterized in that, When measuring a pulse wave using the electronic device, a second interface is displayed on the screen of the device (203), the second interface being used for input or updating: The position parameters of the buckle (204) fastening into the buckle hole (205), the position parameters of the first element (206a) on the second strap (202), and the height of the second element (206b).

22. The electronic device according to claim 14, 15, 16, 18, 19 or 21, characterized in that, The electronic device also includes a flexible printed circuit board (FPC) connector (210), and the electrical wires (209) on the flexible substrate (207) are connected to the body (203) through the FPC connector (210). The FPC connector (210) is used to transmit the pressure signal to the body (203).

23. The electronic device according to claim 14, 15, 16, 18, 19 or 21, characterized in that, The pressure sensor array (208) includes multiple pressure sensor units, each of which has a size less than or equal to a preset threshold.

24. The electronic device according to claim 15, characterized in that, The first element (206a) and the second element (206b) are assembled to form the first component (206), or the first component (206) is integrally formed.

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