Wearable electronic device and control method thereof

Abstract

This application provides a wearable electronic device and its control method. The wearable electronic device includes a main body, a restraint component, a first airbag, and a second airbag. The restraint component is connected to the main body. The first airbag is connected to the main body and disposed on the restraint component, which restrains the first airbag from its inner surface to its outer surface. The second airbag is connected to the main body and disposed on the inner surface of the first airbag. The second airbag, the first airbag, and the restraint component together form a restraint space with the main body. The first airbag can control the size of the restraint space according to the amount of gas it contains, so that the restraint space fits the user's wearing area. The second airbag is used to measure the user's blood pressure. This application improves the convenience of blood pressure measurement in wearable electronic devices by controlling the size of the restraint space with the first airbag.

Description

Technical Field

[0001] This application relates to the field of wearable electronic device technology, and more particularly to a wearable electronic device and its control method. Background Technology

[0002] The development of science and technology has led to the increasing popularity of wearable electronic devices, and the demand for different functions from these devices is also growing. With increasing public awareness of health issues, health monitoring has become a common function of wearable electronic devices. When using wearable electronic devices for blood pressure measurement, the tightness of the fit significantly affects the accuracy of the measurement. If the device is worn too loosely, the measured blood pressure will be too high; if it is worn too tightly, the measured blood pressure will be too low. Accurate measurement requires manually selecting the appropriate buckle based on the wrist circumference. The convenience of blood pressure monitoring with wearable electronic devices is relatively poor. Summary of the Invention

[0003] This application provides a wearable electronic device and its control method, which can improve the convenience of blood pressure detection by the wearable electronic device.

[0004] This application provides a wearable electronic device, which includes:

[0005] main body;

[0006] A constraint component, which is connected to the main body;

[0007] A first airbag, connected to the main body, is disposed on the restraining member, which restrains the first airbag from its inner surface to its outer surface.

[0008] The second airbag is connected to the main body and is disposed on the inner surface of the first airbag. The second airbag, the first airbag, and the restraint component together form a restraint space with the main body.

[0009] The first airbag can control the size of the restraint space according to the amount of gas it contains, so that the restraint space can fit the user's wearing part.

[0010] The second airbag is used to measure the user's blood pressure.

[0011] This application also provides a wearable electronic device, which includes:

[0012] main body;

[0013] A constraint component, which is connected to the main body;

[0014] A first airbag, connected to the main body, is disposed on the restraining member, which restrains the first airbag from its inner surface to its outer surface.

[0015] The second airbag is connected to the main body and is disposed on the inner surface of the first airbag. The second airbag, the first airbag, and the restraint component together form a restraint space with the main body.

[0016] This application also provides a wearable electronic device, which includes:

[0017] main body;

[0018] A space-limiting component, the space-limiting component including a first airbag connected to the main body;

[0019] The second airbag is connected to the main body and is disposed on the inner surface of the first airbag.

[0020] This application also provides a control method for a wearable electronic device, which includes:

[0021] Under the first condition, the first airbag is inflated, and the amount of gas inflated into the first airbag is controlled according to the pressure value of the first airbag obtained by the first pressure sensor, so that the constraint space formed by the second airbag, the first airbag and the constraint component can be adapted to the wearing part.

[0022] Under the second condition, the second airbag is inflated, and the inflation amount of the second airbag is controlled according to the pressure value of the second airbag obtained by the second pressure sensor to determine the user's blood pressure value.

[0023] This application provides a wearable electronic device and its control method. The wearable electronic device includes a main body, a restraint component, a first airbag, and a second airbag. The restraint component is connected to the main body. The first airbag is connected to the main body and disposed on the restraint component, which restrains the first airbag from its inner surface to its outer surface. The second airbag is connected to the main body and disposed on the inner surface of the first airbag. The second airbag, the first airbag, and the restraint component together form a restraint space with the main body. The first airbag can control the size of the restraint space according to the amount of gas it contains, so that the restraint space fits the user's wearing part. The second airbag is used to measure the user's blood pressure. By automatically adjusting the tightness of the wearable electronic device when worn with the first airbag, the user does not need to manually adjust the tightness of the wearable electronic device, which improves the convenience of blood pressure detection by the wearable electronic device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0025] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0026] Figure 1 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application.

[0028] Figure 3 This is a first state diagram of a wearable electronic device in a wearing state, as provided in an embodiment of this application.

[0029] Figure 4 This is a second state diagram of a wearable electronic device in a wearing state, as provided in an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the third state of a wearable electronic device provided in this application embodiment when it is in a wearing state.

[0031] Figure 6 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application.

[0032] Figure 7 for Figure 6 A schematic diagram of the structure shown from another perspective.

[0033] Figure 8 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application.

[0034] Figure 9 for Figure 8 A schematic diagram of the structure shown from another perspective.

[0035] Figure 10 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application.

[0036] Figure 11 This is a flowchart illustrating the control method for a wearable electronic device provided in an embodiment of this application.

[0037] Figure 12This is a schematic diagram illustrating the workflow of a wearable electronic device during the wearing process, as provided in an embodiment of this application.

[0038] Figure 13 This is a schematic diagram illustrating the workflow of a wearable electronic device during blood pressure measurement, as provided in an embodiment of this application.

[0039] Figure 14 This is a schematic diagram illustrating the workflow of a wearable electronic device during the removal process, as provided in an embodiment of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0041] Please see Figure 1 , Figure 1This is a schematic diagram of a wearable electronic device provided in an embodiment of this application. The wearable electronic device 10 includes a main body 100, a restraint component 200, a first airbag 300, and a second airbag 400. The restraint component 200 is connected to the main body 100 and is used for wearing the wearable electronic device 10. When the wearable electronic device 10 is a smartwatch, the restraint component 200 can be a watch strap. The user can use the restraint component 200 to fix the main body 100 connected to it to the user's wearing area, thereby realizing the wearing of the wearable electronic device 10. The first airbag 300 is connected to the main body 100 and is disposed on the restraint component 200. The restraint component 200 is used to restrain the first airbag 300 from its inner surface to its outer surface. The inner surface of the restraint component 200 can be the surface facing the user's wearing area when the wearable electronic device 10 is worn, and the outer surface of the restraint component 200 can be the surface opposite to the inner surface, that is, the surface opposite to the surface facing the user's wearing area when the wearable electronic device 10 is worn. The second airbag 400 is connected to the main body 100. The second airbag 400 is disposed on the inner surface of the first airbag 300. The second airbag 400, the first airbag 300, and the restraint component 200 together with the main body 100 form a restraint space 500. The user's wearing part can be inserted into the restraint space 500 to achieve the wearing of the wearable electronic device 10. The first airbag 300 can control the size of the restraint space 500 according to the amount of gas it contains, so that the restraint space 500 fits the user's wearing part. The second airbag 400 can be used to measure the user's blood pressure. The first airbag 300 can be a multi-layered airbag with a large gas capacity, allowing it to inflate to a larger volume to fit different sized wearing parts. The second airbag 400 can be a single-layered or multi-layered airbag used to measure the user's blood pressure. The first airbag 300 and the second airbag 400 can be deformable structures made of polyvinyl chloride or silicone. When not inflated, the first airbag 300 and the second airbag 400 can be flat. Once inflated, the airbags will slowly swell and move towards the user's wearing area. The first airbag 300 is used to adjust the tightness of the wearable electronic device, and the second airbag is used to detect the user's blood pressure.

[0042] Compared to manually selecting the buckle, this application embodiment provides a wearable electronic device that automatically adjusts the tightness of the wearable electronic device when worn via a first airbag, which can improve the convenience of blood pressure measurement by the wearable electronic device.

[0043] Please combine Figure 1 Continue reading Figure 2 , Figure 2This is a schematic diagram of a wearable electronic device provided in an embodiment of this application. The wearable electronic device also includes an inflation component, a first pressure sensor, a second pressure sensor, and a processor. The processor can be disposed in the main body 100 and is electrically connected to the inflation component and the first pressure sensor. The inflation component can be disposed in the main body 100 and is connected to the first airbag and the second airbag for inflating the first airbag and the second airbag. It is understood that the inflation component can also be used to deflate the first airbag and the second airbag.

[0044] The first pressure sensor is used to acquire the pressure value of the first airbag. The processor can be configured to control the amount of gas inflated by the inflation component based on the pressure value of the first airbag acquired by the first pressure sensor. For example, under a first condition, the inflation component is controlled to inflate the first airbag, and the amount of gas inflated by the inflation component is controlled based on the pressure value of the first airbag acquired by the first pressure sensor, so that the constraint space enclosed by the second airbag, the first airbag, and the constraint component adapts to the wearing part. The first condition can be that the wearable electronic device is in a wearing adjustment state. When the wearable electronic device is in a wearing adjustment state, the first airbag is inflated, the first pressure sensor acquires the pressure value of the first airbag in real time, and the processor controls the inflation component to inflate the first airbag based on the pressure value of the first airbag.

[0045] During the inflation process of the first airbag controlled by the processor, if the pressure value of the first airbag obtained by the first pressure sensor is not less than a first pressure threshold, the processor controls the inflation component to stop inflating the first airbag. The first pressure threshold can be set by technicians based on experience or calculated using an algorithm model based on extensive experimental data. It is understood that when the pressure value detected by the first airbag is not less than the first pressure threshold, the constraint space enclosed by the first airbag, the second airbag, and the restraint part fits the user's wearing area, meaning the tightness of the wearable electronic device is just right. At this time, the constraint space enclosed by the first airbag, the second airbag, and the restraint part is approximately equal to the size of the user's wearing area. The size of the user's wearing area can be estimated based on the inflation information recorded during the inflation process of the first airbag and the size information of the restraint part. The size of the user's wearing area can be used to correct the blood pressure value detected by the second airbag, thereby improving the accuracy of blood pressure detection in the wearable electronic device.

[0046] Specifically, taking the example of a user wearing a wearable electronic device on their wrist, the circumference and width (known) of the restraint component (watchband) after it is fastened are obtained. Assuming the circumference of the part of the user's wrist where the device is worn is X centimeters (unknown), the user's wrist can be fitted within the restraint space. In the uninflated state, the restraint space does not fit the user's wrist. Upon receiving a trigger signal, the processor can control the inflation component to inflate the first airbag. The first airbag gradually expands, filling the space between the restraint component and the user's wrist, reducing the distance between the wrist and the restraint component. This is achieved through the first pressure sensor... When the pressure value of the first airbag obtained by the device is not less than the first pressure value, the inflation component is controlled to stop inflating the first airbag. The inflation time T and inflation speed V of the first airbag are recorded. The inflation volume of the first airbag can be calculated based on the inflation time T and inflation speed V. Since the perimeter and width of the constraint component are known, the volume of the space formed by the constraint component when the first and second airbags are not inflated can be calculated. By subtracting the inflation volume of the first airbag from the volume of the space formed by the constraint component, the perimeter X of the user's wrist wearing area can be estimated. For example, with a watchband perimeter of 22cm, a width of 33mm, an inflation speed V of 120ml / min, and an inflation time T of 10s, assuming that the area enclosed by the user's wrist and the watchband is circular, the volume of the user's wrist located on the watchband can be obtained by subtracting the inflation volume of the first airbag from the volume of the space formed by the watchband. The following correspondence exists. Adding the correction factor α for the ellipse, where the correction factor can be obtained through multiple experiments, the following correspondence exists. Since T equals 10s, which is known, the circumference of the user's wrist can be estimated.

[0047] The second pressure sensor is used to acquire the pressure value of the second airbag. The processor is configured to control the amount of gas inflated by the inflation component to the second airbag based on the pressure value acquired by the second pressure sensor. For example, under a second condition, the inflation component is controlled to inflate the second airbag, and the inflation amount is controlled based on the pressure value acquired by the second pressure sensor to determine the user's blood pressure value. The second condition can be that the wearable electronic device is in a blood pressure monitoring state. When the wearable electronic device is in a blood pressure monitoring state, the inflation component is controlled to inflate the second airbag. If the pressure value of the second airbag acquired by the second pressure sensor is not less than a first measurement threshold, the inflation component stops inflating the second airbag and deflates the second airbag until the pressure value of the second airbag is not greater than the second measurement threshold. The user's blood pressure value is determined based on the pressure information acquired by the second pressure sensor during the inflation and deflation process of the second airbag.

[0048] The first and second measurement thresholds can be set by technicians based on experience. Understandably, the second airbag is inflated via the inflation component, pressurizing it to the user's wrist and blocking radial artery blood flow. Then, the airbag is deflated via the inflation component, transmitting pressure pulses through the wrist. These pulses are detected by a second pressure sensor, and the user's blood pressure can be calculated from them. Compared to methods using photoelectric methods or a combination of photoelectric and electrocardiogram (ECG) to measure blood pressure, the oscillometric method using airbag inflation and deflation provides more accurate blood pressure readings.

[0049] In some embodiments, to improve the accuracy of blood pressure detection by wearable electronic devices, the user's blood pressure can be detected through the second airbag when the constraint space formed by the first airbag, the second airbag, and the constraint component is adapted to the user's wearing position. In this case, the wearable electronic device is neither too loose nor too tight, and the blood pressure value detected by the second airbag is relatively accurate. Specifically, if the wearable electronic device receives a blood pressure detection command, it obtains the pressure information of the first airbag through the first pressure sensor. If the pressure value of the first airbag is not greater than the second pressure threshold and not less than the first pressure threshold, that is, within the range of the first and second pressure thresholds, the inflation component is controlled to inflate the second airbag to detect the user's blood pressure value. If the pressure value of the first airbag is greater than the second pressure threshold, the first airbag can be deflated through the inflation component until the pressure value of the first airbag is not greater than the second pressure threshold. If the pressure value of the first airbag is less than the first pressure threshold, the inflation component can be controlled to inflate the second airbag until the pressure value of the first airbag is not less than the first pressure threshold. The first pressure threshold can be the first pressure threshold as described above, and the second pressure threshold can be set by technicians based on experience or calculated by an algorithm model through a large amount of experimental data.

[0050] Understandably, if the pressure value of the first airbag is less than the first pressure threshold, it indicates that the wearable electronic device is worn in a relatively loose state. In this case, the first airbag can be inflated and pressurized using the inflation component. If the pressure value of the first airbag is greater than the second pressure threshold, it indicates that the wearable electronic device is worn in a relatively tight state. In this case, the first airbag can be deflated using the inflation component, so that the constraint space formed by the first airbag, the second airbag, and the constraint component adapts to the user's wearing position. In some embodiments, only the first pressure threshold can be set. The first pressure threshold can be the pressure threshold described above. If the pressure value of the first airbag is less than the first pressure threshold, it indicates that the wearable electronic device is worn in a relatively loose state. In this case, the first airbag can be inflated and pressurized using the inflation component. If the pressure value of the first airbag is greater than the first pressure threshold, it indicates that the wearable electronic device is worn in a relatively tight state. In this case, the first airbag can be deflated using the inflation component. When the pressure value of the first airbag is equal to the first pressure threshold, the constraint space formed by the first airbag, the second airbag, and the constraint component adapts to the user's wearing position. In this embodiment, the user's blood pressure can be measured via a second airbag when the wearable electronic device is fitted to the user's body part. This avoids the problem of low accuracy in blood pressure measurement caused by the wearable electronic device being too loose or too tight when it is needed for measurement, and can improve the accuracy of blood pressure measurement by the wearable electronic device.

[0051] In some embodiments, when the wearable electronic device measures blood pressure via the second airbag, it cannot be guaranteed that the wearable electronic device will always be in a state of perfect tightness. In this case, the blood pressure value measured by the second airbag can be corrected by the size of the user's wearing area. To ensure the accuracy of blood pressure detection, the processor is further configured to: after determining the user's blood pressure value based on the pressure information obtained from the second pressure sensor, acquire the size information of the fitting wearing area within the constraint space enclosed by the second airbag, the first airbag, and the constraint component. This size information can be estimated by acquiring the pressure information from the first pressure sensor during the inflation of the first airbag, or it can be the size information of the fitting wearing area manually input by the user. The user's blood pressure value determined based on the pressure information obtained from the second pressure sensor is corrected according to the size information to obtain the corrected blood pressure value.

[0052] The inflation component provided in this application embodiment may include an air pump, a first air valve, and a second air valve. The air pump can inflate the first airbag through the first air valve and the second airbag through the second air valve. Conversely, it can also deflate the first airbag through the first air valve and the second airbag through the second air valve. In some embodiments, to improve the convenience of blood pressure measurement in wearable electronic devices, the first air valve can be a normally closed valve, which is closed in the power-off state, and the second air valve can be a normally open valve, which is open in the power-off state. To further understand the operation of the inflation component in different states of the wearable electronic device, please refer to... Figure 2 Continue reading Figures 3 to 5 , Figure 3 This is a first state diagram of a wearable electronic device in a wearing state, as provided in an embodiment of this application. Figure 4 This is a second state diagram of a wearable electronic device in a wearing state, as provided in an embodiment of this application. Figure 5 This is a schematic diagram of the third state of a wearable electronic device provided in this application embodiment when it is in a wearing state.

[0053] The wearing part 600 can be the user's wrist. When the user needs to wear the wearable electronic device 10, the wearing part 600 is inserted into the constraint space 500 formed by the constraint component 200, the first airbag 300, and the second airbag 400 (e.g., Figure 3 As shown), at this time, the constraint space 500 is not yet adapted to the user's wrist. The wearable electronic device 10 can control the first air valve to open based on the received trigger signal, inflating the first airbag 300 via an air pump. The trigger signal can be triggered by the user through physical buttons, virtual buttons, voice signals, or image signals, or it can be generated by a sensor installed in the wearable electronic device 10 detecting that the user's wearing part is close. The pressure value of the first airbag 300 detected by the first pressure sensor is acquired in real time. When this pressure value is not less than a first pressure threshold, the first air valve is closed, and the air pump is turned off, stopping the inflation of the first airbag 300. At this time, the constraint space formed by the first airbag 300, the second airbag 400, and the constraint component 200 is adapted to the user's wearing part 600 (e.g., ...). Figure 4 (As shown).

[0054] When a user needs to measure their blood pressure, a blood pressure detection signal can be triggered. This signal can be triggered by the user via a physical button, virtual button, voice signal, or image signal. When the wearable electronic device 10 receives the blood pressure detection signal, since the second air valve is normally open, there is no need to open it. The air pump directly inflates the second airbag 400 through the second air valve. At this time, the second airbag 400 compresses the user's wearing area 600 (e.g., ...). Figure 5As shown, the pressure value of the second airbag 400 detected by the second pressure sensor is acquired in real time. When this pressure value is not less than the first measurement threshold, the air pump is turned off, stopping the inflation of the second airbag. Since the second air valve is a normally open valve, the gas in the second airbag is slowly released until the pressure value inside the second airbag 400 is not greater than the second measurement threshold. The user's blood pressure value is determined based on the pressure information acquired by the second pressure sensor during the inflation and deflation process of the second airbag. After determining the user's blood pressure value through the second airbag, the user's blood pressure value can be corrected by using the size of the user's wearing area estimated by the first airbag, which can further improve the accuracy of blood pressure detection.

[0055] When a user needs to remove the wearable electronic device from the wearing area, the first air valve can be opened to deflate the first airbag 300. The pressure value of the first airbag 300 detected by the first pressure sensor is obtained in real time. When the pressure value is not greater than the third pressure threshold, the first air valve is closed. At this time, the constraint space formed by the constraint component 200, the first airbag 300, and the second airbag 400 is at its maximum. The user can then easily remove the wearable electronic device from the wearing area.

[0056] Please continue reading Figure 1 The first airbag 300, the second airbag 400, and the restraint component 200 can all be connected to opposite ends of the main body 100, such as the first end 110 and the second end 120. The size of the restraint component 200 can be a fixed size or an adjustable size. In an embodiment where the size of the restraint component 200 is adjustable, the restraint component 200 may include a first strap connected to the first end 110 and a second strap connected to the second end 120, as well as a connector disposed on the first strap and / or the second strap. The connector may be a buckle or other structure used to adjust the relative position of the first strap and the second strap. In this case, since the size of the restraint component 200, the inflation volume of the first airbag 300, and the inflation volume of the second airbag 400 are all adjustable, the wearing needs of users with different sizes of wearing parts can be met, thereby improving the applicability of the wearable electronic device 10.

[0057] In some embodiments, for the sake of the uniform appearance of the wearable electronic device, the first airbag and the second airbag may be disposed within the space formed by the restraint component. (See also...) Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application. Figure 7 for Figure 6The schematic diagram of the structure from another perspective shows that the first airbag 300 and the second airbag 400 can be disposed within the space formed by the restraint component 200. The restraint component 200 can be a restraint structure made of deformable material. It is understood that when the first airbag 300 or the second airbag 400 is in an inflated state, the restraint component 200 can deform, causing the restraint space it forms to change, so as to realize the wearing adjustment of wearable electronic devices or blood pressure measurement.

[0058] In some embodiments, to facilitate the inflation and deflation of the first and second airbags, and to improve the range of adjustment for the first airbag on the wearable electronic device and the applicability of the second airbag for blood pressure measurement, the first and second airbags may not be connected to opposite ends of the main body. Please refer to [further details]. Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of the structure of a wearable electronic device provided in an embodiment of this application. Figure 9 for Figure 8 The diagram shows a structural schematic from another perspective. One end of the first airbag 300 is connected to the main body 100 to connect with the inflation component disposed on the main body, facilitating inflation of the first airbag 300 by the inflation component. Because the first airbag 300 has a free end not connected to the main body 100, the first airbag 300 has fewer restricted parts and a larger inflatable volume, expanding the control range of the first airbag's control constraint space and thus improving the range of adjustment of the tightness of the wearable electronic device. One end of the second airbag 400 is connected to the main body 100 to connect with the inflation component disposed on the main body, similarly facilitating inflation of the second airbag 400 by the inflation component. Because the second airbag 400 has a free end not connected to the main body 100, the second airbag 400 has fewer restricted parts and a larger inflatable volume, making it suitable for blood pressure measurement at different wearing sites, thus improving the applicability of the second airbag blood pressure measurement.

[0059] In some embodiments, wearable electronic devices may not require restraint components; the first airbag may be reused as a restraint component. Please refer to [link to relevant documentation]. Figure 10 , Figure 10 This is a schematic diagram of a wearable electronic device provided in an embodiment of this application. The wearable electronic device 10 includes a space-defining component and a second airbag 400. The space-defining component includes a first airbag 300 connected to a main body 100, and the second airbag 400 connected to the main body 100. The second airbag 400 is disposed on the inner surface of the first airbag 300, and the inner surface of the first airbag 300 is the surface facing the user when the wearable electronic device is worn. The functions of the first airbag 300 and the second airbag 400 are similar to those described above, and will not be repeated here.

[0060] Please continue reading Figure 11 , Figure 11 This is a flowchart illustrating a control method for a wearable electronic device provided in an embodiment of this application. This application also provides a control method for a wearable electronic device, which can be applied to the wearable electronic device described above. The method includes:

[0061] 101. Under the first condition, the first airbag is inflated, and the amount of gas inflated into the first airbag is controlled according to the pressure value of the first airbag obtained by the first pressure sensor, so that the constraint space formed by the second airbag, the first airbag and the constraint component is adapted to the wearing part.

[0062] The first condition can be that the wearable electronic device is in a wearing adjustment state. When the wearable electronic device is in a wearing adjustment state, the first airbag is inflated. The first pressure sensor obtains the pressure value of the first airbag in real time, and the processor controls the inflation component to inflate the first airbag according to the pressure value of the first airbag.

[0063] During the inflation process of the inflation component, if the pressure value of the first airbag detected by the first pressure sensor is not less than a first pressure threshold, the inflation component stops inflating the first airbag. The first pressure threshold can be set by technicians based on experience or calculated using an algorithm model based on extensive experimental data. It is understood that when the pressure value detected by the first airbag is not less than the first pressure threshold, the constraint space enclosed by the first airbag, the second airbag, and the restraint part fits the user's wearing area, meaning the tightness of the wearable electronic device is just right. At this time, the constraint space enclosed by the first airbag, the second airbag, and the restraint part is approximately equal to the size of the user's wearing area. The size of the user's wearing area can be estimated based on the inflation information recorded during the inflation process of the first airbag and the size information of the restraint part. The size of the user's wearing area can be used to correct the blood pressure value detected by the second airbag, thereby improving the accuracy of blood pressure detection in the wearable electronic device.

[0064] Taking the example of a user wearing a wearable electronic device on their wrist, the circumference and width (known) of the restraint component (watchband) after it is fastened are obtained. Assuming the circumference of the user's wrist wearing area is X centimeters (unknown), the user's wrist wearing area can be inserted into the restraint space. In the uninflated state, the restraint space does not fit the user's wrist wearing area. Upon receiving a trigger signal, the processor can control the inflation component to inflate the first airbag. The first airbag gradually expands, filling the space between the restraint component and the user's wrist, reducing the distance between the wrist wearing area and the restraint component. The first pressure sensor obtains... When the pressure value of the first airbag is not less than the first pressure value, the inflation component is controlled to stop inflating the first airbag. The inflation time T and inflation speed V of the first airbag are recorded. The inflation volume of the first airbag can be calculated based on the inflation time T and inflation speed V. Since the perimeter and width of the constraint component are known, the volume of the space formed by the constraint component when the first and second airbags are not inflated can be calculated. The perimeter X of the user's wrist wearing part can be estimated by subtracting the inflation volume of the first airbag from the volume of the space formed by the constraint component.

[0065] 102. Under the second condition, the second airbag is inflated, and the inflation amount of the second airbag is controlled according to the pressure value of the second airbag obtained by the second pressure sensor, so as to determine the user's blood pressure value.

[0066] The second condition can be that the wearable electronic device is in blood pressure detection mode. When the wearable electronic device is in blood pressure detection mode, the inflation component is controlled to inflate the second airbag. When the inflation component is controlling the inflation component to inflate the second airbag, if the pressure value of the second airbag obtained by the second pressure sensor is not less than the first measurement threshold, the inflation component is controlled to stop inflating the second airbag and deflate the second airbag until the pressure value of the second airbag is not greater than the second measurement threshold. The user's blood pressure value is determined based on the pressure information obtained by the second pressure sensor during the process of inflating and deflating the second airbag.

[0067] The first and second measurement thresholds can be set by technicians based on experience. Understandably, the second airbag is inflated via the inflation component, pressurizing it to the user's wrist and blocking radial artery blood flow. Then, the airbag is deflated via the inflation component, transmitting pressure pulses through the wrist. These pulses are detected by a second pressure sensor, and the user's blood pressure can be calculated from them. Compared to methods using photoelectric methods or a combination of photoelectric and electrocardiogram (ECG) to measure blood pressure, the oscillometric method using airbag inflation and deflation provides more accurate blood pressure readings.

[0068] In some embodiments, to improve the accuracy of blood pressure detection by wearable electronic devices, the user's blood pressure can be detected through the second airbag when the constraint space formed by the first airbag, the second airbag, and the constraint component is adapted to the user's wearing position. In this case, the wearable electronic device is neither too loose nor too tight, and the blood pressure value detected by the second airbag is relatively accurate. Specifically, if the wearable electronic device receives a blood pressure detection command, it obtains the pressure information of the first airbag through the first pressure sensor. If the pressure value of the first airbag is not greater than the second pressure threshold and not less than the first pressure threshold, that is, within the range of the first and second pressure thresholds, the inflation component is controlled to inflate the second airbag to detect the user's blood pressure value. If the pressure value of the first airbag is greater than the second pressure threshold, the first airbag can be deflated through the inflation component until the pressure value of the first airbag is not greater than the second pressure threshold. If the pressure value of the first airbag is less than the first pressure threshold, the inflation component can be controlled to inflate the second airbag until the pressure value of the first airbag is not less than the first pressure threshold. The first pressure threshold can be the first pressure threshold as described above, and the second pressure threshold can be set by technicians based on experience or calculated by an algorithm model through a large amount of experimental data.

[0069] Understandably, if the pressure value of the first airbag is less than the first pressure threshold, it indicates that the wearable electronic device is worn in a relatively loose state. In this case, the first airbag can be inflated and pressurized using the inflation component. If the pressure value of the first airbag is greater than the second pressure threshold, it indicates that the wearable electronic device is worn in a relatively tight state. In this case, the first airbag can be deflated using the inflation component, so that the constraint space formed by the first airbag, the second airbag, and the constraint component adapts to the user's wearing position. In some embodiments, only the first pressure threshold can be set. The first pressure threshold can be the pressure threshold described above. If the pressure value of the first airbag is less than the first pressure threshold, it indicates that the wearable electronic device is worn in a relatively loose state. In this case, the first airbag can be inflated and pressurized using the inflation component. If the pressure value of the first airbag is greater than the first pressure threshold, it indicates that the wearable electronic device is worn in a relatively tight state. In this case, the first airbag can be deflated using the inflation component. When the pressure value of the first airbag is equal to the first pressure threshold, the constraint space formed by the first airbag, the second airbag, and the constraint component adapts to the user's wearing position. In this embodiment, the user's blood pressure can be measured via a second airbag when the wearable electronic device is fitted to the user's body part. This avoids the problem of low accuracy in blood pressure measurement caused by the wearable electronic device being too loose or too tight when it is needed for measurement, and can improve the accuracy of blood pressure measurement by the wearable electronic device.

[0070] In some embodiments, when a wearable electronic device measures blood pressure via the second airbag, it cannot be guaranteed that the device will always be in a state of perfect fit. In this case, the blood pressure value measured by the second airbag can be corrected by adjusting the size of the user's wearing area. To ensure the accuracy of blood pressure detection, after determining the user's blood pressure value based on the pressure information obtained from the second pressure sensor, the size information of the fitting area within the constraint space enclosed by the second airbag, the first airbag, and the constraint components is obtained. This size information can be estimated by obtaining the pressure information from the first pressure sensor during the inflation of the first airbag, or it can be the size information of the fitting area manually input by the user. The user's blood pressure value determined based on the pressure information obtained from the second pressure sensor is then corrected according to the size information to obtain the corrected blood pressure value.

[0071] In some embodiments, to facilitate the removal of a wearable electronic device while it is being worn, the control method for the wearable electronic device may further include: deflating the first airbag under a third condition, and controlling the amount of gas deflated from the first airbag based on the pressure value of the first airbag obtained by the first pressure sensor. Specifically, the third condition may be the state when the user needs to remove the wearable electronic device from the wearing part. When the user needs to remove the wearable electronic device from the wearing part, the first airbag can be deflated, and the pressure value of the first airbag detected by the first pressure sensor can be obtained in real time. When the pressure value obtained by the first pressure sensor meets a second preset condition, such as when the obtained pressure value is not greater than a third pressure threshold, the pressure value obtained by the first pressure sensor meets the second preset condition, and the adapter valve is closed. At this time, the restraint component, the first airbag, and the second airbag can form a larger and more relaxed restraint space, allowing the user to easily remove the wearable electronic device from the wearing part.

[0072] The following describes the workflow of wearable electronic devices in different application scenarios. The wearable electronic device can be the one mentioned above. The example shows the first air valve (adapter air valve) of the wearable electronic device as a normally closed valve, which is closed when the power is off, and the second air valve (measuring air valve) as a normally open valve, which is open when the power is off.

[0073] Please continue reading Figure 12 , Figure 12This is a schematic diagram illustrating the workflow of a wearable electronic device during the wearing process provided in this application embodiment. When a user needs to wear the wearable electronic device, they can wear it on their wrist to trigger a wearing signal. For example, the trigger signal can be triggered by the user through physical buttons, virtual buttons, voice signals, or image signals, or it can be a trigger signal generated by a sensor installed in the wearable electronic device detecting that the user's wearing part is close. After the wearable electronic device detects the user's wearing signal, it can open the adapter air valve, close the measuring air valve, and turn on the air pump to inflate. Since the adapter air valve is in the open state and the measuring air valve is in the closed state, the air pump inflates the first airbag. The pressure value of the first airbag is detected in real time by the first pressure sensor. When the pressure value detected by the first pressure sensor meets the first preset condition, for example, when the pressure value is not less than the first pressure threshold (which can be 1 mmHg), the detected pressure value meets the first preset condition, the adapter air valve is closed, and the air pump is turned off, stopping the inflation of the first airbag. At this time, the constraint space formed by the first airbag, the second airbag, and the constraint component is adapted to the user's wearing part. If the pressure value is less than the first pressure threshold, the first airbag continues to be inflated by the air pump until the pressure value detected by the first pressure sensor is not less than the first pressure threshold. During the inflation of the first airbag by the air pump, the inflation time is recorded, and the inflation time can be used to calculate the user's wrist circumference value later.

[0074] Please continue reading Figure 13 , Figure 13 This is a schematic diagram illustrating the workflow of a wearable electronic device during blood pressure measurement, as provided in an embodiment of this application.

[0075] When a wearable electronic device is being worn and the user needs to measure blood pressure, a blood pressure detection signal can be triggered. This signal can be triggered by the user through physical buttons, virtual buttons, voice signals, or image signals. For example, the user can press the measurement button, and the wearable electronic device will receive the blood pressure detection signal. Since the measurement valve is normally open, there is no need to open the valve to start the air pump. The air pump directly inflates the second airbag through the measurement valve. At this time, the second airbag compresses the user's wrist. The pressure value of the second airbag is obtained in real time by the second pressure sensor, which then determines whether the pressure value obtained by the second pressure sensor meets the requirements of the first step. A measurement condition is established, for example, if the pressure value is not less than a first measurement threshold, then the pressure value meets the first measurement condition. The air pump is then turned off, stopping the inflation of the second airbag. Since the measuring valve is normally open, the gas inside the second airbag is slowly released. The pressure value of the second airbag is acquired in real time by a second pressure sensor, and it is determined whether the pressure value acquired by the second pressure sensor meets the second measurement condition. For example, if the pressure value is not greater than the second measurement threshold, then the pressure value acquired by the second pressure sensor meets the second measurement condition. At this time, the user's blood pressure value can be determined based on the pressure information acquired by the second pressure sensor during the inflation and deflation process of the second airbag. In some other embodiments, after determining the user's blood pressure value through the second airbag, the user's blood pressure value can be corrected using the size of the user's wearing area (e.g., wrist circumference) estimated by the first airbag, which can further improve the accuracy of blood pressure detection.

[0076] Please continue reading Figure 14 , Figure 14 This is a schematic diagram illustrating the workflow of a wearable electronic device during the removal process, as provided in an embodiment of this application.

[0077] When a user needs to remove the wearable electronic device from the wearing area, the adapter air valve, being a normally closed valve, can be opened to deflate the first airbag. The pressure value of the first airbag detected by the first pressure sensor is obtained in real time. When the pressure value obtained by the first pressure sensor meets the second preset condition, such as the pressure value not exceeding the third pressure threshold (which can be 0.1 mmHg), the pressure value obtained by the first pressure sensor meets the second preset condition, and the adapter air valve is closed. At this time, the restraint component, the first airbag, and the second airbag can form a larger and more relaxed restraint space, allowing the user to easily remove the wearable electronic device from the wearing area.

[0078] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0079] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0080] The wearable electronic device and its control method provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application, and the descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A wearable electronic device, characterized in that, include: main body; A constraint component, which is connected to the main body; A first airbag, connected to the main body, is disposed on the restraining member, which restrains the first airbag from its inner surface to its outer surface. The second airbag is connected to the main body and is disposed on the inner surface of the first airbag. The second airbag, the first airbag, and the restraint component together form a restraint space with the main body. An inflatable assembly, which is connected to the first airbag, is used to inflate the first airbag. The first airbag can control the size of the restraint space according to the amount of gas it contains, so that the restraint space can fit the user's wearing part. A first pressure sensor is used to acquire the pressure value of the first airbag; The processor is configured to: when controlling the inflation assembly to inflate the first airbag, if the pressure value of the first airbag obtained by the first pressure sensor is not less than a first pressure threshold, control the inflation assembly to stop inflating the first airbag, acquire the size information of the restraint component and the inflation information of the inflation assembly from the start of inflation to the end of inflation, and calculate the size information of the fitting part of the restraint space formed by the second airbag, the first airbag and the restraint component based on the size information of the restraint component and the inflation information; The second airbag is used to measure the user's blood pressure, and the size information of the constraint space that adapts to the wearing part can be used to correct the user's blood pressure value measured by the second airbag.

2. The wearable electronic device according to claim 1, characterized in that, Also includes: The inflation component is disposed on the main body; The processor is disposed on the main body, and is electrically connected to the inflation assembly and the first pressure sensor. The processor is configured to: The inflation component controls the amount of gas to inflate the first airbag based on the pressure value obtained from the first pressure sensor.

3. The wearable electronic device according to claim 1, characterized in that, Also includes: An inflatable assembly is disposed on the main body and is connected to the second airbag for inflating the second airbag. A second pressure sensor is used to acquire the pressure value of the second airbag; and A processor, disposed in the main body, electrically connected to the inflation assembly and the second pressure sensor, is configured to: The pressure value of the second airbag is obtained from the second pressure sensor, and the inflation component controls the amount of gas to inflate the second airbag.

4. The wearable electronic device according to claim 3, characterized in that, The processor is also configured to: When the inflation component inflates the second airbag, if the pressure value of the second airbag obtained by the second pressure sensor is not less than the first measurement threshold, the inflation component is controlled to stop inflating the second airbag and deflate the second airbag until the pressure value of the second airbag is not greater than the second measurement threshold. The user's blood pressure value is determined based on the pressure information obtained by the second pressure sensor during the inflation and deflation process of the second airbag.

5. The wearable electronic device according to claim 4, characterized in that, The processor is also configured to: After determining the user's blood pressure value based on the pressure information obtained from the second pressure sensor, the size information of the fitting part of the constraint space formed by the second airbag, the first airbag, and the constraint component is obtained. The user's blood pressure value, determined based on the pressure information obtained from the second pressure sensor, is corrected according to the size information to obtain the corrected blood pressure value.

6. The wearable electronic device according to claim 1, characterized in that, Also includes: An inflation assembly is disposed on the main body and is connected to the first airbag and the second airbag for inflating the first airbag and the second airbag. A first pressure sensor is disposed on the main body and is used to obtain the pressure value of the first airbag; A second pressure sensor is disposed on the main body and is used to obtain the pressure value of the second airbag; A processor, disposed in the main body, electrically connected to the inflation assembly, the first pressure sensor, and the second pressure sensor, is configured to: Under the first condition, the inflation component is controlled to inflate the first airbag, and the amount of gas inflated by the inflation component is controlled according to the pressure value of the first airbag obtained by the first pressure sensor, so that the constraint space formed by the second airbag, the first airbag and the constraint component can be adapted to the user's wearing part. Under the second condition, the inflation component is controlled to inflate the second airbag, and the inflation amount of the second airbag is controlled by the inflation component based on the pressure value of the second airbag obtained by the second pressure sensor, so as to determine the user's blood pressure value.

7. A control method for a wearable electronic device, characterized in that, The wearable electronic device includes a restraint component, an inflation assembly, a first pressure sensor, a second pressure sensor, a first airbag, and a second airbag; the method includes: Under the first condition, the first airbag is inflated, and the amount of gas inflated into the first airbag is controlled according to the pressure value of the first airbag obtained by the first pressure sensor, so that the constraint space formed by the second airbag, the first airbag and the constraint component can be adapted to the wearing part. Under the second condition, the second airbag is inflated, and the inflation amount of the second airbag is controlled according to the pressure value of the second airbag obtained by the second pressure sensor to determine the user's blood pressure value. Specifically, when the first airbag is inflated, if the pressure value of the first airbag obtained by the first pressure sensor is not less than a first pressure threshold, inflation of the first airbag is stopped. The size information of the restraint component and the inflation information of the inflation assembly from the start to the end of inflation are obtained. Based on the size information of the restraint component and the inflation information, the size information of the fitting part of the restraint space formed by the second airbag, the first airbag, and the restraint component is calculated. The user's blood pressure value is corrected based on the size information of the fitting part of the restraint space to obtain the corrected blood pressure value.

8. The control method for a wearable electronic device according to claim 7, characterized in that, controlling the amount of gas to inflate the first airbag based on the pressure value of the first airbag obtained from the first pressure sensor includes: During the process of controlling the inflation component to inflate the first airbag, if the pressure value of the first airbag obtained by the first pressure sensor is less than the first pressure threshold, the inflation component is controlled to inflate the first airbag.

9. The control method for a wearable electronic device according to claim 7, characterized in that, the step of controlling the inflation volume of the second airbag based on the pressure value of the second airbag obtained by the second pressure sensor to determine the user's blood pressure value includes: When the inflation assembly inflates the second airbag, if the pressure value of the second airbag obtained by the second pressure sensor is less than the first measurement threshold, the inflation assembly is controlled to inflate the second airbag; if the pressure value of the second airbag obtained by the second pressure sensor is not less than the first measurement threshold, the inflation assembly is controlled to stop inflating the second airbag. After the inflation component stops inflating the second airbag, the second airbag is controlled to deflate until the pressure value of the second airbag is not greater than the second measurement threshold. The user's blood pressure value is determined based on the pressure information obtained by the second pressure sensor during the inflation and deflation process of the second airbag.

10. The control method for a wearable electronic device according to claim 7, characterized in that, The method further includes: Under the third condition, the first airbag is deflated, and the amount of gas deflated from the first airbag is controlled according to the pressure value of the first airbag obtained from the first pressure sensor.

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