Blood pressure measurement method, electronic device, and storage medium

Abstract

Provided in the present application are a blood pressure measurement method, an electronic device, and a storage medium. A wearable device comprises a first heart rate sensor and a second heart rate sensor. A watch body of the wearable device comprises a wearing face and a display face, a first button is arranged on a side surface of the watch body, the first heart rate sensor is arranged on the first button, and the second heart rate sensor is arranged on the wearing face. The wearable device acquires first information, and the first information comprises one or more of the following items: user information, environment information, and motion data. The wearable device determines a first blood pressure measurement scheme based on the first information, and the first blood pressure measurement scheme comprises at least one of the following blood pressure measurement methods: measuring blood pressure based on first heart rate data collected by the first heart rate sensor, and measuring blood pressure based on second heart rate data collected by the second heart rate sensor. The blood pressure measurement accuracy of wearable devices and the comfortableness in the blood pressure measurement for a user are improved.

Description

Blood pressure measurement method, electronic device and storage medium

[0001] This application claims priority to the Chinese patent application with application number 202410327076.9 filed with the State Intellectual Property Office of China on March 20, 2024, and priority to the Chinese patent application with the invention name “A blood pressure measurement method, electronic device and storage medium”. This application claims priority to the international patent application with application number PCT / CN2025 / 083171 filed on March 18, 2025, and priority to the Chinese patent application with the invention name “A blood pressure measurement method, electronic device and storage medium”. The entire contents of both applications are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of terminal technology, and in particular to a blood pressure measurement method, electronic device, and storage medium. Background Art

[0003] With the improvement of living standards, people's physical health has received more and more attention, and the number of users with hypertension has increased. Monitoring blood pressure is of great significance.

[0004] To facilitate blood pressure measurement, wearable devices now include blood pressure measurement devices. Users can use these devices to measure their blood pressure. When a user needs to measure their blood pressure, they can trigger the wearable device to begin measuring blood pressure using the blood pressure measurement device. However, this requires active user interaction and is cumbersome. Further research is needed to improve the convenience of blood pressure measurement using wearable devices. Summary of the Invention

[0005] The present application provides a blood pressure measurement method, electronic device, and storage medium, which can automatically measure blood pressure without user operation, and also improve the accuracy of blood pressure measurement by wearable devices and the comfort of users during blood pressure measurement.

[0006] In first aspect, the present application provides a blood pressure measurement method, wherein the wearable device includes an airbag, an air pressure sensor, a first heart rate sensor, and a second heart rate sensor, the airbag is connected to the air pressure sensor, the wearable device also includes a watch body, the watch body includes a wearing surface and a display surface, a first button is provided on the side of the watch body, the first heart rate sensor is provided on the first button, and the second heart rate sensor is provided on the wearing surface; the method includes: the wearable device obtains first information, the first information includes one or more of the following: user information, environmental information, and motion data; the wearable device determines a first blood pressure measurement scheme based on the first information, the first blood pressure measurement scheme includes at least one of the following blood pressure measurement methods: a first blood pressure measurement method based on the airbag and the air pressure sensor for measuring blood pressure, a second blood pressure measurement method based on the first heart rate data collected by the first heart rate sensor for measuring blood pressure, and a third blood pressure measurement method based on the second heart rate data collected by the second heart rate sensor for measuring blood pressure.

[0007] Optionally, the wearable device is a watch or a bracelet.

[0008] Optionally, the wearable device may further include a pressure sensor and an electrocardiogram sensor. The pressure sensor is provided on the first button, and the electrocardiogram sensor includes a plurality of electrodes, and the plurality of electrodes are provided on the surface of the first button and / or the wearing surface of the watch body. Measuring blood pressure based on the first heart rate data collected by the first heart rate sensor specifically includes: measuring blood pressure based on the first heart rate data collected by the first heart rate sensor, the first pressure data collected by the pressure sensor, and the electrocardiogram data collected by the electrocardiogram sensor. In this way, the second blood pressure measurement method can obtain the user's blood pressure value through multiple data collected by multiple devices, which can improve the accuracy of measuring blood pressure by the second blood pressure measurement method. Optionally, the electrocardiogram sensor can be an ECG sensor.

[0009] Optionally, the heart rate sensor can be any one or more combinations of a PPG sensor, a laser sensor, a photoelectric conversion sensor, an ultrasonic sensor and a magnetic induction sensor.

[0010] Optionally, when measuring blood pressure using the first blood pressure measurement method, the wearable device may prompt the user to align the wrist wearing the wearable device with the heart.

[0011] Optionally, when measuring blood pressure using the second blood pressure measurement method, the wearable device may prompt the user to press or touch a side button of the wearable device with a single finger.

[0012] Optionally, when measuring blood pressure using the third blood pressure measurement method, the wearable device may prompt the user to remain still. Alternatively, the wearable device may not prompt the user to remain still, which is not limited in this application.

[0013] Optionally, measuring blood pressure using the second blood pressure measurement method described in various embodiments of the present application may include:

[0014] A first pressure value of the first button is acquired through the pressure sensor; and a user is prompted to increase or decrease the pressing force on the first button according to the first pressure value.

[0015] Specifically, when it is detected that the first pressure value is greater than a first threshold, the user may be prompted to reduce the pressing force of the first button; when it is detected that the first pressure value is less than a second threshold, the user may be prompted to increase the pressing force of the first button.

[0016] When measuring blood pressure using the second blood pressure measurement method, the wearable device may further display a pressure indicator bar, where the pressure indicator bar is used to indicate the pressure value of the first button obtained by the pressure sensor.

[0017] The wearable device can obtain a second blood pressure value based on the first pressure value, the first heart rate data, and the electrocardiogram data collected by the electrocardiogram sensor. The first heart rate data and the electrocardiogram data are heart rate data and electrocardiogram data collected by the first heart rate sensor when the user's pressure on the first button meets a preset pressure range. For example, the preset pressure range can be between 40gF and 70gF.

[0018] In some embodiments, the wearable device may also combine multiple blood pressure measurement methods to measure blood pressure.

[0019] For example, the wearable device can measure blood pressure using a combination of the first blood pressure measurement method and the second blood pressure measurement method. In one possible implementation, the wearable device can prompt the user to align the wrist wearing the wearable device with the heart and press or touch a side button of the wearable device with a single finger. In other possible implementations, the wearable device can prompt the user to align the wrist wearing the wearable device with the heart and press or touch a side button of the wearable device with a single finger.

[0020] For another example, the wearable device can measure blood pressure using a combination of the first and third blood pressure measurement methods. In one possible implementation, the wearable device can prompt the user to align the wrist wearing the wearable device with the heart and to remain still. In other possible implementations, the wearable device can prompt the user to align the wrist wearing the wearable device with the heart and to remain still.

[0021] For another example, the wearable device can measure blood pressure using a combination of the second and third blood pressure measurement methods. In one possible implementation, the wearable device can prompt the user to press or touch a side button of the wearable device with a single finger and remain still. In other possible implementations, the wearable device can prompt the user to press or touch a side button of the wearable device with a single finger while remaining still.

[0022] For another example, the wearable device can measure blood pressure by combining the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method. In one possible implementation, the wearable device can prompt the user to align the wrist wearing the wearable device with the heart, press or touch the side button of the wearable device with a single finger, and remain still. In other possible implementations, the wearable device can prompt the user to align the wrist wearing the wearable device with the heart, press or touch the side button of the wearable device with a single finger, and remain still.

[0023] The various blood pressure measurement methods provided herein have varying degrees of accuracy and comfort. For example, the first blood pressure measurement method may be more accurate than the second blood pressure measurement method, which in turn may be more accurate than the third blood pressure measurement method. The first blood pressure measurement method may be more comfortable than the second blood pressure measurement method, which in turn may be more comfortable than the third blood pressure measurement method.

[0024] The first information may be actively input into the wearable device by the user, or may be obtained by the wearable device from other electronic devices (such as a mobile phone) with which it is connected.

[0025] Optionally, different users may have different first information, and the wearable device may recommend different first blood pressure measurement solutions for different users. For the same user, based on different first information, the wearable device may recommend different first blood pressure measurement solutions for different users.

[0026] Through this method, a wearable device can use a more accurate blood pressure measurement method to measure a user's blood pressure when it needs to accurately measure the user's blood pressure. During other time periods, the wearable device can use a more comfortable blood pressure measurement method to measure blood pressure. In other words, a wearable device can use different blood pressure measurement methods at different times to monitor a user's blood pressure, which not only improves the accuracy of the wearable device's blood pressure measurement but also increases the user's comfort during the blood pressure measurement process.

[0027] In combination with the first aspect, in a possible implementation, the first blood pressure measurement scheme also includes any one or more of the following: the number of the first blood pressure measurement method, the number of the second blood pressure measurement method, the number of the third blood pressure measurement method, the measurement time of the first blood pressure measurement method, the measurement time of the second blood pressure measurement method, and the measurement time of the third blood pressure measurement method.

[0028] The number of times of the first blood pressure measurement method, the number of times of the second blood pressure measurement method, and the number of times of the third blood pressure measurement method are all different, or are partially the same, or are all the same.

[0029] The measurement time of the first blood pressure measurement method, the measurement time of the second blood pressure measurement method, and the measurement time of the third blood pressure measurement method are all different, or are partially the same, or are all the same.

[0030] Optionally, the first blood pressure measurement plan further includes information such as the execution time of the first blood pressure measurement plan. The execution time of the first blood pressure measurement plan may be at least one day, such as 1 day, 7 days, or 10 days.

[0031] In combination with the first aspect, in one possible implementation, user information includes one or more of the following: blood pressure, heart rate, body temperature, pulse, respiratory rate, blood sugar, smoking history, drinking history, medical history, medication history, living habits, gender, age, height, and weight; environmental information includes any one or more of the following: time, date, climate, temperature, altitude, season, and weather.

[0032] In combination with the first aspect, in a possible implementation, after the wearable device determines the first blood pressure measurement plan based on the first information, the method further includes: the wearable device prompting the user to view the content of the first blood pressure measurement plan.

[0033] Optionally, the wearable device may also prompt the user to view the first blood pressure measurement plan through other electronic devices (such as a mobile phone) that establish a communication connection with the wearable device.

[0034] Optionally, after receiving the first information input by the user and obtaining the first blood pressure measurement plan based on the first information, the wearable device may prompt the user to view the content of the first blood pressure measurement plan.

[0035] Optionally, the wearable device may also periodically / irregularly recommend the first blood pressure measurement plan to the user and prompt the user to view the content of the first blood pressure measurement plan.

[0036] In combination with the first aspect, in a possible implementation, after the wearable device determines a first blood pressure measurement scheme based on the first information, the method further includes: the wearable device measures and obtains a first blood pressure value; and the wearable device obtains a second blood pressure measurement scheme based on the first blood pressure value.

[0037] The second blood pressure measurement protocol is the same as or different from the first blood pressure measurement protocol.

[0038] Optionally, the wearable device may obtain a first blood pressure value before or during execution of the first blood pressure measurement solution, and determine whether the first blood pressure measurement solution needs to be updated based on the first blood pressure value to obtain a second blood pressure measurement solution.

[0039] In combination with the first aspect, in one possible implementation, if the first blood pressure value is too high or too low, the first blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the first blood pressure measurement method in the first blood pressure measurement scheme, or the second blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the second blood pressure measurement method in the first blood pressure measurement scheme.

[0040] When the first blood pressure value is too high or too low, the second blood pressure measurement scheme is different from the first blood pressure measurement scheme. For example, the first blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the first blood pressure measurement method in the first blood pressure measurement scheme, or the second blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the second blood pressure measurement method in the first blood pressure measurement scheme. In this way, when the user's blood pressure is abnormal, the wearable device can increase the number of executions of the first blood pressure measurement method or the second blood pressure measurement method with higher accuracy to achieve more accurate blood pressure monitoring of users with abnormal blood pressure.

[0041] Optionally, when the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme or the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is less than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0042] In combination with the first aspect, in one possible implementation, if the first blood pressure value is normal, the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme.

[0043] When the first blood pressure value is normal, the second blood pressure measurement scheme is the same as or different from the first blood pressure measurement scheme. For example, the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme. In this way, when the user's blood pressure is normal, the wearable device can appropriately reduce blood pressure measurement methods that affect the user's comfort, thereby improving the user experience.

[0044] Optionally, when the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0045] Optionally, when the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0046] Optionally, when the first blood pressure value is normal, the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is less than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0047] In conjunction with the first aspect, in one possible implementation, the first blood pressure value is obtained using a first blood pressure measurement method. In this way, the wearable device can obtain the user's true blood pressure value through the first blood pressure measurement with the highest accuracy, and determine whether to modify the first blood pressure measurement method based on the user's true blood pressure value. This can improve the applicability of the wearable device in obtaining the second blood pressure measurement method.

[0048] In conjunction with the first aspect, in one possible implementation, after the wearable device determines a first blood pressure measurement scheme based on the first information, the method further includes: the wearable device measures blood pressure based on the first blood pressure measurement scheme to obtain multiple blood pressure values; and the wearable device determines a third blood pressure measurement scheme based on the multiple blood pressure values, where the third blood pressure measurement scheme is different from the first blood pressure measurement scheme. After the wearable device executes the first blood pressure measurement scheme for a first duration, the wearable device may obtain multiple blood pressure values. The wearable device may update the first blood pressure measurement scheme based on the multiple blood pressure values ​​to obtain a third blood pressure measurement scheme. Optionally, the wearable device may also update the first blood pressure measurement scheme based on the multiple blood pressure values ​​and the first information to obtain a third blood pressure measurement scheme.

[0049] For example, when it is determined that the user's blood pressure is normal based on multiple blood pressure values, the wearable device 100 can appropriately reduce the number of measurements of the first blood pressure measurement method in the first blood pressure measurement scheme or reduce the number of measurements of the second blood pressure measurement method to improve the comfort of the wearable device 100 in measuring blood pressure.

[0050] For another example, when it is determined that the user's blood pressure is abnormal based on multiple blood pressure values, the wearable device 100 can appropriately increase the number of measurements of the first blood pressure measurement method in the first blood pressure measurement scheme or increase the number of measurements of the second blood pressure measurement method to improve the accuracy of the wearable device 100 in measuring blood pressure, so as to more accurately monitor and evaluate the blood pressure of users with abnormal blood pressure.

[0051] In combination with the first aspect, in a possible implementation, after the wearable device determines the first blood pressure measurement scheme based on the first information, the method also includes: the wearable device obtains a second blood pressure value based on the first blood pressure measurement method; the wearable device collects second heart rate data based on a second heart rate sensor; the wearable device updates the first target model based on the second blood pressure value and the second heart rate data, and the third blood pressure value obtained by the updated first target model based on the second heart rate data is closer to the second blood pressure value than the fourth blood pressure value obtained by the first target model before the update based on the second heart rate data.

[0052] The wearable device updating the first target model based on the second blood pressure value and the second heart rate data may include: the wearable device inputting the second heart rate data into the first target model, and the first target model outputting a predicted blood pressure value. The wearable device may calibrate the first target model based on the difference between the predicted blood pressure value and the second blood pressure value.

[0053] In this way, when the wearable device measures the user's blood pressure using the first blood pressure measurement method, the wearable device can automatically calibrate the first target model used in the third blood pressure measurement method based on the blood pressure value obtained by the first blood pressure measurement method. This allows the wearable device to calibrate the first target model without the user noticing and increases the number of times the first target model is calibrated, which helps improve the accuracy of the blood pressure value estimated by the first target model.

[0054] In combination with the first aspect, in a possible implementation, after the wearable device determines the first blood pressure measurement scheme based on the first information, the method also includes: the wearable device obtains a third blood pressure value based on the second blood pressure measurement method; the wearable device collects second heart rate data based on the second heart rate sensor; the wearable device updates the first target model based on the third blood pressure value and the second heart rate data, and the fifth blood pressure value obtained by the updated first target model based on the second heart rate data is closer to the third blood pressure value than the sixth blood pressure value obtained by the first target model before the update based on the second heart rate data.

[0055] The wearable device updating the first target model based on the second blood pressure value and the second heart rate data may include: the wearable device inputting the second heart rate data into the first target model, and the first target model outputting a predicted blood pressure value. The wearable device may calibrate the first target model based on the difference between the predicted blood pressure value and the third blood pressure value.

[0056] In this way, when the wearable device measures the user's blood pressure using the second blood pressure measurement method, the wearable device can automatically calibrate the first target model used in the third blood pressure measurement method based on the blood pressure value obtained by the second blood pressure measurement method. This allows the wearable device to calibrate the first target model without the user noticing and increases the number of times the first target model is calibrated, which helps improve the accuracy of the blood pressure value estimated by the first target model.

[0057] In combination with the first aspect, in a possible implementation, the time interval between the first acquisition time of the second blood pressure value and the second acquisition time of the second heart rate data is less than a first threshold.

[0058] In a possible implementation, the time interval between the first acquisition time of the third blood pressure value and the second acquisition time of the second heart rate data is also smaller than the first threshold.

[0059] In this way, the time interval between the first collection time of the second blood pressure value or the third blood pressure value and the second collection time of the second heart rate data is within a preset time, such as 10 minutes or half an hour, which can ensure that the second blood pressure value or the third blood pressure value and the second heart rate data are collected when the user's physical condition is not much different, and can improve the accuracy of the wearable device in calibrating the first target model based on the second blood pressure value or the third blood pressure value.

[0060] Optionally, after executing the first blood pressure measurement scheme, the wearable device 100 can provide the user's comprehensive blood pressure assessment results based on the measured data and blood pressure results, including but not limited to the highest, lowest, and average values ​​of systolic and diastolic blood pressure during the measurement period, as well as a blood pressure trend change graph formed by the measurement results, and analysis results such as the proportion of valid data, and give the user reasonable suggestions, such as exercise suggestions or rest suggestions.

[0061] In a second aspect, the present application provides a wearable device, which includes a memory and a processor; wherein the memory and the processor are coupled, and the memory is used to store a computer program. When the processor executes and calls the computer program, the wearable device executes a blood pressure measurement method provided in any possible implementation of any of the above aspects.

[0062] In a third aspect, the present application provides a computer-readable storage medium comprising instructions. When the instructions are executed on a wearable device, the wearable device executes a blood pressure measurement method provided in any possible implementation of any of the above aspects.

[0063] In a fourth aspect, the present application provides a chip system, which includes one or more processors, and the processor is used to call computer instructions to enable a wearable device to execute a blood pressure measurement method provided in any possible implementation of any of the above aspects.

[0064] In a fifth aspect, the present application provides a computer program product comprising instructions. When the computer program product is run on a wearable device, the wearable device executes a blood pressure measurement method provided in any possible implementation of any of the above aspects.

[0065] For the description of the beneficial effects of the second to fifth aspects, reference may be made to the description of the beneficial effects in the first aspect, and this application will not repeat them here. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] 1 and 2 show schematic structural diagrams of a wearable device 100;

[0067] FIG3 shows schematic diagrams of several blood pressure measurement postures;

[0068] FIG4 shows a schematic diagram of the hardware structure of the wearable device 100;

[0069] FIG5 is a flow chart showing a method for the wearable device 100 to determine a blood pressure measurement solution;

[0070] 6A-6C are schematic diagrams showing the wearable device 100 prompting the user to view, modify, and save the first blood pressure measurement plan;

[0071] FIG7A is a schematic flow chart showing a method in which the wearable device 10 determines whether to modify the first blood pressure measurement scheme based on the user's blood pressure value;

[0072] FIG7B shows a schematic diagram of the wearable device 100 prompting the user to view the updated blood pressure measurement plan;

[0073] 8A-8E are schematic diagrams showing the wearable device 100 calibrating the second target model for the first time;

[0074] FIG8F shows a schematic diagram of the wearable device 100 calibrating the first target model for the first time;

[0075] FIG8G shows a schematic diagram of the wearable device 100 prompting the user to measure blood pressure using the first blood pressure measurement method;

[0076] FIG8H shows a flow chart of a method for the wearable device 100 to obtain a blood pressure value using a first blood pressure measurement method;

[0077] FIG8I shows a schematic diagram of the wearable device 100 prompting the user to measure blood pressure using the second blood pressure measurement method;

[0078] FIG8J shows a schematic diagram of the wearable device 100 prompting the user to measure blood pressure using the third blood pressure measurement method;

[0079] 9A-9C are schematic diagrams showing a non-first calibration of a blood pressure model for the wearable device 100;

[0080] 9D-9G are schematic diagrams showing the wearable device 100 measuring blood pressure using various blood pressure measurement methods;

[0081] 10A and 10B are schematic diagrams showing the effect of pressure on PPG signals and ECG signals;

[0082] FIG11 is a flow chart showing a method for the wearable device 100 to monitor and adjust pressure;

[0083] 12A-12C are schematic diagrams showing a wearable device 100 prompting a user to adjust pressing force;

[0084] FIG13 is a flow chart showing a method for the wearable device 100 to monitor the amplitude of the PPG signal and adjust the pressure;

[0085] 14A-14B are schematic diagrams showing another embodiment of the wearable device 100 prompting the user to adjust the pressing force;

[0086] Figures 15A-15B show schematic diagrams of the wearable device 100 prompting the user to remain still. DETAILED DESCRIPTION

[0087] The following is a clear and detailed description of the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship between related objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0088] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "plurality" means two or more.

[0089] The term "user interface (UI)" in the following embodiments of this application refers to the media interface for interaction and information exchange between an application or operating system and a user. It converts information between its internal form and a form acceptable to the user. A common form of user interface is a graphical user interface (GUI), which refers to a user interface related to computer operations that uses a graphical display.

[0090] In order to facilitate the measurement of the user's blood pressure, the wearable device is equipped with a blood pressure measuring device, and the user can measure the blood pressure by wearing the wearable device 100.

[0091] The wearable device 100 can provide a variety of blood pressure measurement devices, and different blood pressure measurement devices have different accuracy and comfort in measuring blood pressure.

[0092] 1 and 2 show schematic structural diagrams of a wearable device 100 .

[0093] As shown in FIG1 , the wearable device 100 includes a watch body and a wearable component 103 . The watch body includes a wearing surface (not shown in FIG1 ) and a display surface 104 .

[0094] Display surface 104 includes a display screen. The display screen can be used to display content such as the time, battery level, Bluetooth ID, received messages, and user activity data. The display screen can also be used to illuminate the display screen in response to user clicks. The display screen can also record the user's steps and calories burned, and provide basic functions such as incoming call alerts and message notifications.

[0095] The wearable component 103 is used to attach the watch body. For example, the wearable component 103 can be a wristband or watch strap. The wearable component 103 is a device that allows the watch body to be attached to the user's wrist. The wearable device 100 is attached to the user's wrist.

[0096] The side surface of the watch body includes button 101 and button 102.

[0097] In some embodiments, a first heart rate sensor is provided on button 101, and is used to detect first heart rate data of contact with button 101. When blood pressure measurement is required, the user can press or touch button 101 with a single finger, and wearable device 100 can collect the first heart rate data of the user's finger through the first heart rate sensor on button 101. Wearable device 100 can obtain the user's blood pressure value based on the first heart rate data.

[0098] Optionally, a pressure sensor may be provided on the button 101 to detect a pressure signal generated by contact with the button 101. When a user presses or touches the button 101 with a single finger, the wearable device 100 may collect pressure data from the user's finger through the pressure sensor on the button 101. The wearable device 100 may obtain the user's blood pressure value based on the pressure data and the first heart rate data.

[0099] Optionally, the surface of the button 101 may also be provided with an electrode, such as a first electrode. When blood pressure measurement is required, the user can press the button 101 with a single finger. The first electrode on the surface of the button 101 contacts the skin of the finger, and the electrode on the wearing surface (such as the second electrode) contacts the skin of the wrist, so that the first electrode and the second electrode form a loop, and the wearable device 100 can collect ECG data through the first electrode and the second electrode. The wearable device 100 can estimate the user's blood pressure value based on the first heart rate data and ECG data, or the first heart rate data, ECG data, and pressure data. In some embodiments, the first electrode and the second electrode can be referred to as an ECG sensor. The ECG sensor can also include other electrodes. For example, the wearing surface 105 can also include a third electrode. The wearable device 100 can collect ECG signals through the first electrode, the second electrode, and the third electrode. Optionally, the button 101 is not limited to being provided with the first electrode, but can also be provided with other electrodes. Not limited to providing electrodes on the button 101, the wearable device 100 can also provide one or more electrodes at other locations on the watch body, such as providing one or more electrodes on the button 102. The button 102 can be used to control the brightness of the display screen, scroll the pages displayed on the display screen based on user operations, etc.

[0100] In some embodiments, the wearable device 100 may include an inflatable component, an airbag, and an air pressure sensor (not shown in FIG1 ). When blood pressure needs to be measured, the inflatable component within the wearable device 100 can increase the pressure in the airbag to inflate the air, thereby blocking arterial blood flow through the air pressure. The air pressure sensor can then obtain oscillation waves of different pressures to determine information such as systolic and diastolic pressure.

[0101] It is understood that the wearable device may not include an airbag.

[0102] FIG. 2 shows a schematic diagram of a wearing surface of the wearable device 100 .

[0103] As shown in FIG2 , the wearing surface 105 of the watch body includes a second electrode. The second electrode of the wearing surface 105 is used to form a circuit with the first electrode on the surface of the button 101 to collect electrocardiogram data.

[0104] In some embodiments, a second heart rate sensor is provided on the wearing surface 105, and is used to detect second heart rate data in contact with the button 101. When blood pressure measurement is required, the wearable device 100 can collect the second heart rate data through the second heart rate sensor provided on the wearing surface 105. The wearable device 100 can determine the user's blood pressure value based on the second heart rate data.

[0105] In some embodiments, a pressure sensor may also be provided on the wearing surface 105 to detect pressure signals from contact with the wearing surface 105. When blood pressure measurement is required, the wearable device 100 can collect wrist pressure data using the pressure sensor provided on the wearing surface 105. The wearable device 100 can determine the user's blood pressure value based on the second heart rate data and the wrist pressure data.

[0106] Optionally, the first heart rate sensor or the second heart rate sensor can be any one of a photoplethysmography (PPG) sensor, a laser sensor, an ultrasonic sensor, and a magnetic induction sensor. This embodiment of the present application is described using an example in which the first heart rate sensor or the second heart rate sensor is a PPG sensor, and the first heart rate data or the second heart rate data is a PPG signal.

[0107] Optionally, the PPG sensor may include a light source and a photodetector. The light source may emit red light, infrared light, or other light sources, and the number of light sources may be one or more. Exemplarily, the light source may be a light-emitting diode (LED) or other light-emitting device. The photodetector is used to receive light emitted by the light source, and the number of photodetectors may be one or more. Exemplarily, the photodetector may be a receiving device such as a photodiode (PD).

[0108] The PPG signal may include but is not limited to a pulse wave signal, and may also include other signals, which are not limited in this application.

[0109] Optionally, the ECG sensor may be an electrocardiogram (ECG) sensor, and the ECG data may be an ECG signal.

[0110] Optionally, Figures 1 and 2 only show one form of the wearable device 100. The wearable device 100 may also be a device of other forms, such as a ring, a bracelet, or the like that does not include a display screen. Devices of other forms may also have sensors set on the device body. Devices of other forms may also include one or more sensors and measure blood pressure through sensor data collected by one or more sensors.

[0111] Based on the analysis of FIG1 and FIG2, the wearable device 100 can provide multiple different blood pressure measurement methods, and different blood pressure measurement methods can be performed using different blood pressure measurement devices.

[0112] For example, the wearable device 100 may include a first blood pressure measurement method, which may be implemented by a first blood pressure measurement device. The first blood pressure measurement device may include but is not limited to devices such as an inflatable component, an airbag, and an air pressure sensor.

[0113] Optionally, when measuring blood pressure using the first blood pressure measurement method, the user can maintain the blood pressure measurement posture shown in (a) in FIG3 , that is, the wrist wearing the wearable device 100 is aligned with the heart.

[0114] For another example, the wearable device 100 may include a second blood pressure measurement method, which may be implemented by a second blood pressure measurement device. The second blood pressure measurement device may include a first heart rate sensor, or a first heart rate sensor and a pressure sensor, or a first heart rate sensor, an electrocardiogram sensor, and a pressure sensor. The pressure sensor is used to detect a pressure signal from contact with the button 101.

[0115] Optionally, when measuring blood pressure using the second blood pressure measurement method, the user may maintain the blood pressure measurement posture shown in (b) in FIG3 , ie, press the button 101 with the user's finger.

[0116] Optionally, the blood pressure may be measured using the second blood pressure measurement method as described in FIG. 10A to FIG. 15B .

[0117] Based on the above introduction, the wearable device 100 can estimate the user's blood pressure value through sensor data collected by preset sensors. In order to improve the accuracy of the estimated blood pressure value, it is necessary to ensure the reliability and accuracy of the sensor data collected by the wearable device 100.

[0118] 10A and 10B are schematic diagrams showing the effect of pressure on PPG and ECG signals.

[0119] FIG10A(a) shows a waveform of a pressure signal, FIG10A(b) shows a waveform of an ECG signal at different pressures, and FIG10A(c) shows a waveform of a PPG signal at different pressures.

[0120] It can be seen from (a) and (b) in FIG10A that as the pressure gradually increases from a small value, the amplitude of the ECG signal does not fluctuate significantly, indicating that the pressure has little effect on the ECG signal.

[0121] It can be seen from (a) and (c) in FIG10A that as the pressure gradually increases from a small value, the amplitude of the PPG signal first increases and then decreases, indicating that pressure has a significant effect on the PPG signal.

[0122] FIG10B shows a schematic diagram of the waveforms of ECG signals and PPG signals at different pressures.

[0123] As shown in FIG10B , when the pressures are 30 mmHg, 54 mmHg, and 80 mmHg, respectively, the waveform of the ECG signal does not change significantly, and the waveform of the ECG signal is substantially the same.

[0124] The PPG signal waveforms differ at pressures of 30 mmHg, 54 mmHg, and 80 mmHg. As shown in Figure 10B, when the pressure is 30 mmHg, the PPG signal waveform is waveform A, which includes characteristic point a, indicating the location of maximum central arterial pressure, with the maximum central arterial pressure being H1. When the pressure is 54 mmHg, the PPG signal waveform is waveform B, which includes characteristic point b, also indicating the location of maximum central arterial pressure, with the maximum central arterial pressure being H2. When the pressure is 80 mmHg, the PPG signal waveform is waveform C, which includes characteristic point c, also indicating the location of maximum central arterial pressure, with the maximum central arterial pressure being H3.

[0125] In some embodiments, the maximum central arterial pressure may also be referred to as the amplitude of the PPG signal.

[0126] Here, H1 is smaller than H2, and H2 is smaller than H3. This means that as pressure changes, the maximum central arterial pressure in the PPG signal also changes. Alternatively, as pressure changes, the amplitude of the PPG signal also changes.

[0127] Figure 10B only shows that the amplitude of the PPG signal gradually increases as the pressure increases from a small value. When the pressure exceeds the preset value, as can be seen from Figure 10A, the amplitude of the PPG signal gradually decreases as the pressure continues to increase.

[0128] As shown in Figures 10A and 10B , pressure affects the amplitude of the PPG signal. As pressure increases from a small value, the amplitude of the PPG signal first increases and then decreases. Pressure has almost no effect on the amplitude of the PPG signal. Therefore, the wearable device 100 can prompt the user to adjust the pressure based on the pressure value obtained by the pressure sensor, thereby changing the amplitude of the PPG signal until the amplitude of the PPG signal exceeds a preset value.

[0129] In order to improve the accuracy of the wearable device 100 in estimating the user's blood pressure value, it is necessary to monitor the quality of the PPG signal and the quality of the ECG signal, and improve the quality of the PPG signal and the quality of the ECG signal collected by the wearable device 100.

[0130] The wearable device 100 can monitor the quality of the PPG signal.

[0131] The quality of the PPG signal can be related to the amplitude and stability of the PPG signal. When the amplitude of the PPG signal is greater than a preset amplitude and the PPG signal is stable, the PPG signal has a strong ability to resist noise interference, and the blood pressure value estimated by the wearable device 100 based on multiple parameters such as the PPG signal is closer to the user's actual blood pressure value.

[0132] First, it is described how the wearable device 100 monitors the amplitude of the PPG signal.

[0133] 1. The wearable device 100 monitors the amplitude of the PPG signal.

[0134] Based on the description of the embodiment in Figures 10A and 10B , the amplitude of the PPG signal is related to pressure. As pressure gradually increases, the amplitude of the PPG signal first increases and then decreases. Therefore, within a preset pressure range, the amplitude of the PPG signal is greater than the preset amplitude. The preset pressure range can refer to pressure values ​​between a first threshold and a second threshold, where the second threshold is greater than the first threshold.

[0135] In some embodiments, the wearable device 100 can monitor the pressure value and adjust the pressure value to a preset pressure range to obtain a PPG signal with a higher amplitude.

[0136] FIG11 shows a flow chart of a method for the wearable device 100 to monitor and adjust pressure.

[0137] S1001: The wearable device 100 receives an operation of a user pressing a first button.

[0138] In some embodiments, a button 101 is provided on the side of the wearable device 100. The button 101 may also be referred to as a first button. When a user presses the button 101 with a single finger, the wearable device 100 can detect the finger pressure through a pressure sensor pre-installed on the button 101 and collect the finger PPG signal through a PPG sensor on the button 101.

[0139] S1102: The wearable device 100 obtains a first pressure value collected by a pressure sensor in a first button.

[0140] When the user presses the first button with a single finger, the wearable device 100 can obtain a first pressure value collected by the pressure sensor in the first button.

[0141] S1103: The wearable device 100 needs to determine whether the first pressure value is between the first threshold and the second threshold.

[0142] After obtaining the first pressure value collected by the pressure sensor, the wearable device 100 needs to determine whether the pressure value is within a preset pressure range. The preset pressure range can be a pressure value between a first threshold and a second threshold, and the second threshold is greater than the first threshold.

[0143] When the first pressure value is between the first threshold and the second threshold, it indicates that the user's pressing force is appropriate and there is no need to adjust the pressing force, and S1107 is executed.

[0144] When the first pressure value is not between the first threshold and the second threshold, it indicates that the user's pressing force is too large or too small, and the pressing force needs to be adjusted so that the pressing force is within the first threshold and the second threshold, and S1104 or S1105 is executed.

[0145] S1104: When the pressure value is greater than the second threshold, the wearable device 100 prompts the user to reduce the pressing force.

[0146] S1105: When the pressure value is less than the first threshold, the wearable device 100 prompts the user to increase the pressing force.

[0147] When it is determined that the first pressure value is not between the first threshold and the second threshold, the wearable device 100 needs to further determine whether the first pressure value is greater than the second threshold or less than the first threshold.

[0148] When the first pressure value is greater than the second threshold, it indicates that the pressing force is too great, and the wearable device 100 may prompt the user to reduce the pressing force.

[0149] Exemplarily, as shown in FIG12A , when the first pressure value is greater than the second threshold value, the wearable device 100 may display the user interface shown in FIG12A . The user interface shown in FIG12A includes a prompt message “Please reduce the pressing force”, which is used to indicate that the user's pressing force is too great and please reduce the pressing force.

[0150] The user interface shown in FIG12A further includes a pressure indicator bar 1201 , which is used to indicate a first pressure value. For example, the first pressure value may be 150 mmHg.

[0151] The user interface shown in Figure 12A may further include a preset pressure interval 1202. Optionally, the preset pressure interval 1202 may include a first threshold and a second threshold, for example, the first threshold is 60 mmHg and the second threshold is 140 mmHg.

[0152] For another example, the preset pressure range 1202 may be 40-70 gF, that is, the first threshold may be 40 gF, and the second threshold may be 70 gF.

[0153] When the first pressure value is less than the first threshold, it indicates that the pressing force is too small, and the wearable device 100 can prompt the user to increase the pressing force.

[0154] Exemplarily, as shown in FIG12B , when the first pressure value is less than the first threshold value, the wearable device 100 may display the user interface shown in FIG12B . The user interface shown in FIG12B includes a prompt message “Please increase the pressing force”, which is used to indicate to the user that the pressing force is too small and please increase the pressing force.

[0155] The user interface shown in FIG12B also includes a pressure indicator bar 1201 , which is used to indicate a first pressure value. For example, the first pressure value may be 50 mmHg.

[0156] The user interface shown in FIG. 12B may also include a preset pressure range 1202 .

[0157] S1106: The wearable device 100 continues to obtain the second pressure value collected by the pressure sensor in the first button.

[0158] After the wearable device 100 prompts the user to increase or decrease the pressing force, the user can adjust the pressing force accordingly. The wearable device 100 can continue to obtain the second pressure value collected by the pressure sensor in the first button.

[0159] After acquiring the second pressure value, the wearable device 100 needs to continue monitoring whether the second pressure value is between the first threshold and the second threshold, that is, execute S1102 until the second pressure value acquired by the pressure sensor of the first button is greater than the first threshold and less than the second threshold.

[0160] Optionally, when the second pressure value is greater than the first threshold value and less than the first threshold value, the wearable device 100 can prompt the user that the pressing force is appropriate and maintain the current pressing force.

[0161] For example, as shown in FIG12C , when the second pressure value is greater than the first threshold value and less than the first threshold value, the wearable device 100 can display the user interface shown in FIG12C . The user interface shown in FIG12C includes a prompt message “Measuring, please keep pressing your finger”, which is used to instruct the user that the pressing force is appropriate and to maintain the current pressing force.

[0162] The user interface shown in FIG12C also includes a pressure indicator bar 1201 , which is used to indicate a second pressure value. For example, the second pressure value may be 90 mmHg.

[0163] The user interface shown in FIG. 12C may also include a preset pressure interval 1202 .

[0164] S1107: The wearable device 100 obtains a blood pressure value based on parameters such as the first pressure value or the second pressure value.

[0165] When the first pressure value is greater than the first threshold and less than the second threshold, or when the second pressure value is greater than the first threshold and less than the second threshold, the wearable device 100 can estimate the user's blood pressure based on parameters such as the first pressure value or the second pressure value. The user's blood pressure includes, but is not limited to, systolic pressure, diastolic pressure, and mean pressure.

[0166] That is to say, through the above prompt, the pressure value of the user on the first button can be maintained within a certain preset pressure range.

[0167] It is understood that those skilled in the art can adaptively adjust the preset pressure intervals described in the various embodiments of the present application according to different force units, different wearable devices, and different buttons, for example, by adjusting the first threshold and / or the second threshold.

[0168] In some embodiments, the wearable device 100 may also directly monitor the amplitude of the PPG signal and instruct the user to increase or decrease the pressing force based on the amplitude of the PPG signal so that the PPG signal amplitude is greater than a preset value.

[0169] FIG13 shows a flow chart of a method for the wearable device 100 to monitor the amplitude of the PPG signal and adjust the pressure.

[0170] S1301: The wearable device 100 receives an operation of a user pressing a first button.

[0171] In some embodiments, a button 101 is provided on the side of the wearable device 100. The button 101 may also be referred to as a first button. When a user presses the button 101 with a single finger, the wearable device 100 may collect a finger pressure signal through a pressure sensor pre-installed on the button 101 and a finger PPG signal through a PPG sensor on the button 101.

[0172] S1302: The wearable device 100 obtains a first PPG signal collected by a PPG sensor in a first button. It is understood that the first PPG signal may be first heart rate data.

[0173] When the user presses the first button with a single finger, the wearable device 100 can obtain a first PPG signal collected by the PPG sensor in the first button.

[0174] S1303: The wearable device 100 needs to determine whether the amplitude of the first PPG signal is greater than a preset amplitude.

[0175] After acquiring the first PPG signal collected by the PPG sensor, the wearable device 100 needs to determine whether the amplitude of the first PPG signal is greater than a preset amplitude.

[0176] When the amplitude of the first PPG signal is greater than the preset amplitude, it indicates that the quality of the PPG signal is good and there is no need to adjust the amplitude of the PPG signal, and S1311 is executed.

[0177] When the amplitude of the first PPG signal is less than the preset amplitude, it indicates that the quality of the PPG signal is poor, and the pressing force needs to be adjusted so that the amplitude of the PPG signal is greater than the preset amplitude, and S1304 is executed.

[0178] S1304: The wearable device 100 obtains a first pressure value collected by a pressure sensor in the first button.

[0179] When the amplitude of the first PPG signal is determined to be less than the preset amplitude, the wearable device 100 obtains a first pressure value detected by the pressure sensor in the first button and adjusts the user's pressing force on the button 101 based on the first pressure value to increase the amplitude of the PPG signal and obtain a higher-quality PPG signal.

[0180] S1305: The wearable device 100 determines whether the first pressure value is less than a third threshold or greater than a fourth threshold.

[0181] When the first pressure value is less than the third threshold or greater than the fourth threshold, S1306 or S1307 is executed.

[0182] When the first pressure value is greater than the third threshold value and less than the fourth threshold value, S1311 is executed.

[0183] S1306: When the first pressure value is less than the third threshold, the wearable device 100 prompts the user to increase the pressing force.

[0184] S1307: When the first pressure value is greater than the fourth threshold, the wearable device 100 prompts the user to reduce the pressing force.

[0185] In some embodiments, the third threshold is smaller than the fourth threshold, the third threshold may be the same as the first threshold, and the fourth threshold may be the same as the second threshold.

[0186] In some embodiments, the third threshold is smaller than the fourth threshold, the third threshold is larger than the first threshold, and the fourth threshold is smaller than the second threshold.

[0187] After determining that the amplitude of the first PPG signal is less than the preset amplitude and obtaining the first pressure value collected by the pressure sensor, the wearable device 100 can prompt the user to increase or decrease the pressing force based on the magnitude of the first pressure value.

[0188] When the first pressure value is less than the third threshold, it indicates that the pressing force is too small, causing the amplitude of the PPG signal to be less than the preset amplitude. The wearable device 100 can prompt the user to increase the pressing force.

[0189] Exemplarily, as shown in FIG14A , when the first pressure value is less than the third threshold value, the wearable device 100 may display the user interface shown in FIG14A . The user interface shown in FIG14A includes a prompt message “The current PPG signal is weak, please increase the pressure of your finger”. The prompt message is used to indicate that the user's pressing force is too small, please increase the pressing force.

[0190] The user interface shown in FIG14A further includes a pressure indicator bar 1401 , which is used to indicate a first pressure value. For example, the first pressure value may be 70 mmHg.

[0191] The user interface shown in FIG14A may further include a preset pressure interval 1402. Preset pressure interval 1402 may be the pressure interval indicated by the second block shown in FIG14A. Optionally, preset pressure interval 1402 may include a third threshold value and a fourth threshold value, for example, the third threshold value is 80 mmHg and the fourth threshold value is 130 mmHg. For example, the pressure value indicated by the left edge of the second block shown in FIG14A may be the third threshold value, and the pressure value indicated by the right edge of the second block shown in FIG14A may be the fourth threshold value.

[0192] It is understood that those skilled in the art can adaptively adjust the preset pressure intervals described in the various embodiments of the present application according to different force units, different wearable devices, and different buttons, such as adjusting the third threshold and / or the fourth threshold.

[0193] When the first pressure value is greater than the fourth threshold, it indicates that the pressing force is too great, causing the amplitude of the PPG signal to be less than the preset amplitude. The wearable device 100 may prompt the user to reduce the pressing force.

[0194] Exemplarily, as shown in FIG14B , when the first pressure value is greater than the fourth threshold value, the wearable device 100 may display the user interface shown in FIG14B . The user interface shown in FIG14B includes a prompt message “The current PPG signal is weak, please reduce the pressure of your finger”. The prompt message is used to indicate that the user's pressing force is too great, please reduce the pressing force.

[0195] The user interface shown in FIG14B also includes a pressure indicator bar 1401 , which is used to indicate a first pressure value. For example, the first pressure value may be 140 mmHg.

[0196] The user interface shown in FIG. 14B may also include a preset pressure interval 1402 .

[0197] S1308: The wearable device 100 continues to obtain the second pressure value collected by the pressure sensor in the first button.

[0198] After the wearable device 100 prompts the user to increase or decrease the pressing force, the user can adjust the pressing force accordingly. The wearable device 100 can continue to obtain the second pressure value collected by the pressure sensor in the first button.

[0199] S1309: The wearable device 100 needs to determine whether the second pressure value is different from the first pressure value.

[0200] After obtaining the second pressure value collected by the pressure sensor, the wearable device 100 needs to determine whether the second pressure value is different from the first pressure value to determine whether the user has adjusted the pressing force.

[0201] When the second pressure value is different from the first pressure value, it indicates that the user has adjusted the pressing force, and S1310 is executed.

[0202] When the second pressure value is the same as the first pressure value, it indicates that the user has not adjusted the pressing force, and S1306 or S1307 is continued to be executed until the second pressure value is different from the first pressure value.

[0203] It is understood that a condition may be added, requiring not only that the second pressure value be different from the first pressure value, but also that the second pressure value be within a preset pressure range. In other words, when the second pressure value is different from the first pressure value and satisfies the preset range, S1310 is executed.

[0204] When the second pressure value is the same as the first pressure value or the second pressure value does not meet the preset pressure range, it means that the user has not adjusted the pressing force or even if the pressure is adjusted, it does not meet the preset pressure range. Continue to execute S1306 or S1307 until the second pressure value is different from the first pressure value and meets the preset pressure range.

[0205] S1310: The wearable device 100 obtains a second PPG signal collected by the PPG sensor in the first button. It is understandable that the second PPG signal may be the first heart rate data.

[0206] After the user adjusts the pressing force, the wearable device 100 can obtain the second PPG signal collected by the PPG sensor in the first button, and determine whether the amplitude of the second PPG signal is greater than the preset amplitude, that is, continue to execute S1303.

[0207] S1311. The wearable device 100 obtains a blood pressure value based on parameters such as the first PPG signal or the second PPG signal.

[0208] When the amplitude of the first PPG signal is greater than the preset amplitude, or the amplitude of the second PPG signal is greater than the preset amplitude, the wearable device 100 can be based on parameters such as the first PPG signal or the second PPG signal or the blood pressure value.

[0209] In some embodiments, steps S1308 and S1309 may not be performed. After prompting the user to increase or decrease the pressing force, the wearable device 100 may directly collect the second PPG signal and determine whether the amplitude of the second PPG signal is greater than a preset amplitude. If the amplitude of the second PPG signal is less than the preset amplitude, the wearable device 100 continues to prompt the user to increase or decrease the pressing force based on the pressure value collected by the pressure sensor on the first button until the amplitude of the second PPG signal is greater than the preset amplitude.

[0210] In some embodiments, the third and fourth thresholds may be the same. The third or fourth threshold may be the pressure value corresponding to the pressing force when the amplitude of the PPG signal reaches its maximum amplitude. Upon determining that the amplitude of the first PPG signal is less than a preset amplitude, the wearable device 100 may obtain the pressure value acquired by the pressure sensor in the first button. If the pressure value is less than the third or fourth threshold, the wearable device 100 may prompt the user to increase the pressing force. If the pressure value is greater than the third or fourth threshold, the wearable device 100 may prompt the user to reduce the pressing force. After the user adjusts the pressing force, the wearable device 100 continues to acquire the second PPG signal acquired by the PPG sensor in the first button. When the amplitude of the second PPG signal exceeds the preset amplitude, the process ends. If the amplitude of the second PPG signal is less than the preset amplitude, the wearable device 100 continues to prompt the user to increase or decrease the pressing force based on the pressure value acquired by the pressure sensor until the amplitude of the second PPG signal exceeds the preset amplitude.

[0211] In some embodiments, when it is determined that the amplitude of the first PPG signal is less than the preset amplitude, the wearable device 100 may not adjust the pressing force based on the pressure value collected by the pressure sensor in the first button.

[0212] In one possible implementation, when it is determined that the amplitude of the first PPG signal is less than a preset amplitude, the wearable device 100 may prompt the user to increase the pressing force. After the user increases the pressing force, if the amplitude of the PPG signal collected by the PPG sensor in the first button continues to decrease, the wearable device 100 may determine that the current user's pressing force is too great, causing the amplitude of the PPG signal to be less than the preset value. The wearable device 100 may then prompt the user to reduce the pressing force until the amplitude of the PPG signal is greater than the preset value, maintaining the current pressing force to measure blood pressure. After the user increases the pressing force, if the amplitude of the PPG signal collected by the PPG sensor in the first button gradually increases, the wearable device 100 may prompt the user to continue increasing the pressing force until the amplitude of the PPG signal is greater than the preset value, maintaining the current pressing force to measure blood pressure.

[0213] In other possible implementations, when it is determined that the amplitude of the first PPG signal is less than a preset amplitude, the wearable device 100 may prompt the user to reduce the pressing force. After the user reduces the pressing force, if the amplitude of the PPG signal collected by the PPG sensor in the first button continues to decrease, the wearable device 100 may determine that the current user's pressing force is too small, resulting in the amplitude of the PPG signal being less than the preset value. The wearable device 100 may then prompt the user to increase the pressing force until the amplitude of the PPG signal is greater than the preset value, maintaining the current pressing force to measure blood pressure. After the user reduces the pressing force, if the amplitude of the PPG signal collected by the PPG sensor in the first button gradually increases, the wearable device 100 may prompt the user to continue reducing the pressing force until the amplitude of the PPG signal is greater than the preset value, maintaining the current pressing force to measure blood pressure.

[0214] In some embodiments, the wearable device 100 can first monitor the pressure value corresponding to the pressing force so that the pressure value is between the first threshold and the second threshold, then monitor the PPG signal amplitude, and instruct the user to continue to increase or decrease the pressing force based on the PPG signal amplitude until the PPG signal amplitude is greater than the preset value.

[0215] Because different users experience different vascular contractions, the PPG signal amplitude may still be less than the preset value even if the pressure is between the first and second thresholds. Therefore, after adjusting the pressure, it is necessary to monitor the PPG signal amplitude to ensure that the PPG signal amplitude is greater than the preset value. In other words, the present application can also combine the embodiments of Figures 11 and 13 to adjust the pressing force to ensure that the PPG signal amplitude is greater than the preset value.

[0216] Optionally, the third threshold is less than the fourth threshold, the third threshold is greater than the first threshold, and the fourth threshold is less than the second threshold. In other words, the wearable device 100 can instruct the user to adjust the pressure value corresponding to the pressing force to between the first threshold and the second threshold based on the pressure value collected by the pressure sensor in the first button. If the amplitude of the PPG signal is still less than the preset amplitude, the wearable device 100 can continue to instruct the user to adjust the pressure value corresponding to the pressing force to between the third threshold and the fourth threshold, so that the amplitude of the PPG signal exceeds the preset amplitude.

[0217] In some embodiments, after instructing the user to adjust the pressure value corresponding to pressure to between the third and fourth thresholds, if the amplitude of the PPG signal remains below the preset amplitude, the wearable device 100 may continue to instruct the user to adjust the pressing force. When the pressing force exceeds the fifth threshold, the wearable device 100 may instruct the user to reduce the pressing force. When the pressing force is below the fifth threshold, the wearable device 100 may instruct the user to increase the pressing force until the amplitude of the PPG signal exceeds the preset amplitude. The fifth threshold is greater than the third threshold and less than the fourth threshold. The fifth threshold may be the pressure value corresponding to the pressing force when the amplitude of the PPG signal reaches its maximum amplitude.

[0218] 2. The wearable device 100 monitors the stability of the PPG signal.

[0219] The quality of the PPG signal is not only related to the amplitude of the PPG signal, but also to its stability. The wearable device 100 also needs to monitor the stability of the PPG signal. A stable PPG signal can mean that the difference between the amplitude of m consecutive PPG signal frames and a preset amplitude is within a first difference, meaning that the amplitude of the m consecutive PPG signal frames does not fluctuate significantly.

[0220] In some embodiments, when the wearable device 100 includes multiple PPG sensors, a stable PPG signal may refer to the PPG signals collected by each of the multiple PPG sensors being stable. For example, if a PPG sensor is provided on the button 101 of the wearable device 100 and a PPG sensor is provided on the wearing surface 105 of the wearable device 100, a stable PPG signal may refer to the PPG signal collected by the PPG sensor provided on the button 101 being stable and the PPG signal collected by the PPG sensor provided on the wearing surface 105 being stable.

[0221] When it is determined that the PPG signal is stable, the wearable device 100 can estimate the user's blood pressure value based on the collected PPG signal and other parameters.

[0222] When it is determined that the PPG signal is unstable, the wearable device 100 can also determine the cause of the unstable PPG signal and instruct the user to take relevant measures to eliminate the cause of the unstable PPG signal, so that the wearable device 100 can obtain a more stable PPG signal.

[0223] The reasons for the unstable PPG signal may include, but are not limited to, any one or more of the following: the user is exercising, the user is coughing, talking, breathing rapidly, etc. The reasons for the unstable PPG signal may also include other factors, which are not limited in this application.

[0224] In some embodiments, the wearable device 100 can obtain motion data collected by the motion sensor and sound signals collected by the microphone, and determine the cause of the unstable PPG signal based on the motion data and / or the sound signals collected by the microphone.

[0225] For example, when it is determined based on motion data that the user is currently in motion, or when it is determined that the user has been in motion for a period of time before, the wearable device 100 can display the user interface shown in Figure 15A. The user interface shown in Figure 15A includes a prompt message "Don't move, please stay still". The prompt message is used to instruct the user to stay still during the blood pressure measurement process to improve the stability of the PPG signal collected by the wearable device 100 and improve the accuracy of the wearable device 100 estimating the user's blood pressure based on the PPG signal.

[0226] For example, when it is determined based on the sound signal collected by the microphone that the user is in a state such as coughing, talking, or shortness of breath, the wearable device 100 can display the user interface shown in Figure 15B. The user interface shown in Figure 15B includes a prompt message "Don't talk, please keep still". The prompt message is used to instruct the user to keep still during the blood pressure measurement process to improve the stability of the PPG signal collected by the wearable device 100 and improve the accuracy of the wearable device 100 estimating the user's blood pressure based on the PPG signal.

[0227] For example, when it is determined based on the motion data that the user is not in motion, and based on the sound signal collected by the microphone that the user is not coughing, talking, breathing rapidly, etc., the wearable device 100 can prompt the user to wait for a while before measuring blood pressure.

[0228] For another example, the second blood pressure measurement scheme can be based on the user wearing it on the wrist, using another finger to press the first button, and based on the heart rate sensor, pressure sensor and electrocardiogram sensor on the first button, collecting the user's pressure signal and first heart rate data (for example, PPG signal), where the PPG signal can include PPG signals of multiple light sources with different wavelengths (yellow light, blue light, etc.), and electrocardiogram data (for example, ECG signal); while keeping the pressure of the finger pressing within a certain range (for example, the range of 40gF to 70gF), continuously collecting a period of multiple PPG signals and ECG signals of different wavelengths, and obtaining the blood pressure value through at least one or more of the features shown below.

[0229] It should be noted that the features can be independent waveform features or joint features of PPG and ECG signals. For example, the features may include: independent waveform features, such as the time and amplitude of the QRS wave of the ECG, as well as waveform features of multiple PPG signals, such as period, peak value, falling edge / rising edge, etc.; joint features of PPG and ECG, for example, obtaining the relationship between the time of different feature points, such as the peak-to-peak interval, the interval between the P / T wave peak and the PPG peak, etc.

[0230] For another example, the wearable device 100 may include a third blood pressure measurement method, which may be implemented by a third blood pressure measurement device. The third blood pressure measurement device may include a second heart rate sensor, or a second heart rate sensor and a pressure sensor. The pressure sensor is used to collect a pressure signal in contact with the wearing surface 105.

[0231] Optionally, when measuring blood pressure using the third blood pressure measurement method, the user can maintain the blood pressure measurement posture shown in (c) in Figure 3, such as with the arm hanging down. There is no need to adopt a specific posture, and the user can maintain any posture.

[0232] In some embodiments, when measuring blood pressure using the third blood pressure measurement method, the user may also maintain the blood pressure measurement posture shown in (a) in Figure 3, or maintain a blood pressure measurement posture similar to that shown in (b) in Figure 3, but the user's fingers do not need to press or touch button 101.

[0233] The three blood pressure measurement methods mentioned above vary in comfort and accuracy.

[0234] For example, in the first blood pressure measurement method, the user's blood vessels may be squeezed during the inflation and deflation of the airbag, resulting in a poor user experience. However, the wearable device 100 has a higher accuracy in measuring blood pressure using the first blood pressure measurement method.

[0235] For the second blood pressure measurement method, the user needs to actively press the button 101 . The second blood pressure measurement method is more comfortable than the first blood pressure measurement method.

[0236] For the third blood pressure measurement method, the wearable device 100 can measure blood pressure without the user's perception, and the third blood pressure measurement method is more comfortable than the second blood pressure measurement method.

[0237] In summary, the comfort of the third blood pressure measurement method is better than that of the second blood pressure measurement method, and the comfort of the second blood pressure measurement method is better than that of the first blood pressure measurement method.

[0238] In some embodiments, the accuracy of the first blood pressure measurement method is higher than the accuracy of the second blood pressure measurement method, and the accuracy of the second blood pressure measurement method is higher than the accuracy of the third blood pressure measurement method.

[0239] Based on this characteristic, the wearable device 100 can obtain the first information and determine a first blood pressure measurement scheme based on the first information. The blood pressure measurement scheme may include, but is not limited to, any one or more of the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0240] The wearable device 100 is not limited to the above three blood pressure measurement methods. The wearable device 100 may also include other blood pressure measurement methods. Based on different conditions, the corresponding blood pressure measurement method is determined to measure the user's blood pressure.

[0241] Optionally, the wearable device 100 may also measure the user's blood pressure simultaneously based on different conditions and in combination with multiple blood pressure measurement methods. When measuring the user's blood pressure in combination with multiple blood pressure measurement methods, the user may maintain one posture for measuring blood pressure, or may change different postures for measuring blood pressure.

[0242] Optionally, after executing the first blood pressure measurement scheme, the wearable device 100 can provide the user's comprehensive blood pressure assessment results based on the measured data and blood pressure results, including but not limited to the highest, lowest, and average values ​​of systolic and diastolic blood pressure during the measurement period, as well as a blood pressure trend change graph formed by the measurement results, and analysis results such as the proportion of valid data, and give the user reasonable suggestions, such as exercise suggestions or rest suggestions.

[0243] Through this method, the wearable device 100 can measure the user's blood pressure using a more accurate blood pressure measurement method when it needs to accurately measure the user's blood pressure. During other time periods, the wearable device 100 can measure the user's blood pressure using a more comfortable blood pressure measurement method. In other words, the wearable device 100 can use different blood pressure measurement methods at different times to monitor the user's blood pressure, which not only improves the accuracy of the wearable device 100's blood pressure measurement, but also improves the user's comfort during the blood pressure measurement process.

[0244] In some embodiments, if the wearable device 100 does not generate the first blood pressure measurement scheme, the wearable device 100 can also receive a user operation to select any one or more of the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method to measure blood pressure.

[0245] In some embodiments, the wearable device 100 may also combine multiple blood pressure measurement methods to measure blood pressure.

[0246] For example, the wearable device 100 can measure blood pressure by combining the first blood pressure measurement method and the second blood pressure measurement method.

[0247] In one possible implementation, the user may first maintain the blood pressure measurement posture shown in FIG3 (a), obtain a first blood pressure value using the first blood pressure measurement method, and then maintain the blood pressure measurement posture shown in FIG3 (b), obtain a second blood pressure value using the second blood pressure measurement method. Alternatively, the user may first maintain the blood pressure measurement posture shown in FIG3 (b), obtain a first blood pressure value using the second blood pressure measurement method, and then maintain the blood pressure measurement posture shown in FIG3 (a), obtain a second blood pressure value using the first blood pressure measurement method. The wearable device 100 may obtain the user's current blood pressure value based on the first and second blood pressure values.

[0248] In other possible implementations, the user may maintain the blood pressure measurement posture shown in (d) in FIG3 , that is, the user presses the button 101 with a single finger and places the wrist wearing the wearable device 100 flush with the heart.

[0249] In one possible implementation, while the user maintains the blood pressure measurement posture shown in (d) of FIG3 , the user first obtains a first blood pressure value using the first blood pressure measurement method, and then obtains a second blood pressure value using the second blood pressure measurement method, or first obtains a first blood pressure value using the second blood pressure measurement method, and then obtains a second blood pressure value using the first blood pressure measurement method. The wearable device 100 can obtain the user's current blood pressure value based on the first and second blood pressure values.

[0250] In other possible implementations, the user can maintain the blood pressure measurement posture shown in (d) in Figure 3, and obtain two blood pressure values ​​through the first blood pressure measurement method and the second blood pressure measurement method at the same time. The wearable device 100 can obtain the user's current blood pressure value through these two blood pressure values. It should be noted that obtaining two blood pressure values ​​through the first blood pressure measurement method and the second blood pressure measurement method at the same time may mean that the time interval between the measurement time of the first blood pressure measurement method and the measurement time of the second blood pressure measurement method is less than the first value. For example, the first value may be 5 seconds. The first value may also be other values, and this application does not limit this.

[0251] For another example, the wearable device 100 can measure blood pressure by combining the first blood pressure measurement method and the third blood pressure measurement method.

[0252] In one possible implementation, the user may first maintain the blood pressure measurement posture shown in FIG3 (a), obtain a first blood pressure value using the first blood pressure measurement method, and then maintain the blood pressure measurement posture shown in FIG3 (c), obtain a second blood pressure value using the third blood pressure measurement method. Alternatively, the user may first maintain the blood pressure measurement posture shown in FIG3 (c), obtain a first blood pressure value using the third blood pressure measurement method, and then maintain the blood pressure measurement posture shown in FIG3 (a), obtain a second blood pressure value using the first blood pressure measurement method. The wearable device 100 may obtain the user's current blood pressure value based on the first and second blood pressure values.

[0253] In other possible implementations, the user can maintain the blood pressure measurement posture shown in (a) in Figure 3, and obtain two blood pressure values ​​through the first blood pressure measurement method and the third blood pressure measurement method at the same time. The wearable device 100 can obtain the user's current blood pressure value through these two blood pressure values. It should be noted that obtaining two blood pressure values ​​through the first blood pressure measurement method and the third blood pressure measurement method at the same time may mean that the time interval between the measurement time of the first blood pressure measurement method and the measurement time of the third blood pressure measurement method is less than the first value. For example, the first value may be 5 seconds. The first value may also be other values, and this application does not limit this.

[0254] For another example, the wearable device 100 can measure blood pressure by combining the second blood pressure measurement method and the third blood pressure measurement method.

[0255] In one possible implementation, the user may first maintain the blood pressure measurement posture shown in (b) of FIG3 , and obtain a first blood pressure value using the second blood pressure measurement method. The user may then maintain the blood pressure measurement posture shown in (c) of FIG3 , and obtain a second blood pressure value using the third blood pressure measurement method. Alternatively, the user may first maintain the blood pressure measurement posture shown in (c) of FIG3 , and obtain a first blood pressure value using the third blood pressure measurement method. The user may then maintain the blood pressure measurement posture shown in (b) of FIG3 , and obtain a second blood pressure value using the second blood pressure measurement method. The wearable device 100 may obtain the user's current blood pressure value based on the first and second blood pressure values.

[0256] In other possible implementations, the user can maintain the blood pressure measurement posture shown in (b) in Figure 3, and obtain two blood pressure values ​​through the second blood pressure measurement method and the third blood pressure measurement method at the same time. The wearable device 100 can obtain the user's current blood pressure value through these two blood pressure values. It should be noted that obtaining two blood pressure values ​​through the second blood pressure measurement method and the third blood pressure measurement method at the same time may mean that the time interval between the measurement time of the second blood pressure measurement method and the measurement time of the third blood pressure measurement method is less than the first value. For example, the first value may be 5 seconds. The first value may also be other values, which is not limited in this application. That is to say, when measuring blood pressure in combination with the second blood pressure measurement method and the third blood pressure measurement method, the user can maintain one posture or different postures.

[0257] For another example, the wearable device 100 can simultaneously measure blood pressure by combining the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0258] In one possible implementation, the user can maintain the blood pressure measurement posture shown in Figure 3 (a), the blood pressure measurement posture shown in Figure 3 (b), and the blood pressure measurement posture shown in Figure 3 (c), respectively, and obtain a first blood pressure value using a first blood pressure measurement method, a second blood pressure value using a second blood pressure measurement method, and a third blood pressure value using a third blood pressure measurement method, respectively, to obtain the user's current blood pressure value. The measurement order of the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method is not limited.

[0259] In other possible implementations, the user can maintain the blood pressure measurement posture shown in (d) in Figure 3, and obtain three blood pressure values ​​through the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method. The wearable device 100 can obtain the user's current blood pressure value through these three blood pressure values. It should be noted that obtaining three blood pressure values ​​through the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method at the same time may mean that the time interval between the measurement times of the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method is less than the first value. For example, the first value may be 5 seconds. The first value may also be other values, which is not limited in this application.

[0260] Optionally, the present application is illustrated using the same first value as an example, and the first value may also be different. For example, the time intervals of the measurement times of two blood pressure measurement methods may be different. For example, the time interval between the measurement time of the first blood pressure measurement method and the measurement time of the second blood pressure measurement method is less than the first value, and the time interval between the measurement time of the second blood pressure measurement method and the measurement time of the third blood pressure measurement method is less than the second value, and the first value and the second value are different.

[0261] The wearable device 100 is not limited to the above-mentioned multiple blood pressure measurement methods. It can also include other more blood pressure measurement methods, which is not limited in this application.

[0262] FIG4 shows a schematic diagram of the hardware structure of the wearable device 100 .

[0263] The wearable device 100 may be a wristband, a watch, or other device. The present embodiment of the application does not impose any particular restrictions on the specific type of the wearable device. The present embodiment of the application is merely described using the wearable device 100 as a watch as an example.

[0264] As shown in FIG4 , the wearable device 100 may include: a processor 200A, a wireless communication module 201, a mobile communication module 202, a sensor module 203, a button 204, a display 205, a motor 206, a speaker 207, a microphone 208, an internal memory 209A, a SIM card interface 209B, a USB interface 209C, a power management module 210, a battery 211, and a charging management module 212. The sensor module 203 may include a touch sensor 203A, a motion sensor 203B, a heart rate sensor 203C, a pressure sensor 203D, and an electrocardiogram sensor 203E.

[0265] The processor 200A may include one or more processing units. For example, the processor 200A may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU). The different processing units may be independent devices or integrated into one or more processors.

[0266] The wireless communication module 201 can provide wireless communication solutions including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc. applied to wearable devices. The wireless communication module 201 can be one or more devices that integrate at least one communication processing module. The wireless communication module 201 receives electromagnetic waves via an antenna, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 200A. The wireless communication module 201 can also receive the signal to be sent from the processor 200A, frequency modulate it, amplify it, and convert it into electromagnetic waves for radiation through the antenna.

[0267] The mobile communication module 202 can provide solutions for wireless communications including 2G / 3G / 4G / 5G, etc., applied to wearable devices. The mobile communication module 202 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 202 can receive electromagnetic waves from the antenna, filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. In some embodiments, at least some of the functional modules of the mobile communication module 202 can be set in the processor 200A. In some embodiments, at least some of the functional modules of the mobile communication module 202 can be set in the same device as at least some of the modules of the processor 200A.

[0268] The wireless communication function of the wearable device can be implemented through the mobile communication module 202, the wireless communication module 201, the modem processor and the baseband processor.

[0269] Touch sensor 203A, also known as a "touch panel," can be installed on the display screen of wearable device 100. The touch sensor 203A and the display screen together form a touch screen, also known as a "touch screen." Touch sensor 203A is used to detect touch operations applied to or near it. The touch sensor can transmit the detected touch operations to a processor to determine the type of touch event. Visual output related to the touch operations can be provided via the display screen.

[0270] The motion sensor 203B can obtain motion data and determine the non-stationary state of the user wearing the wearable device based on the motion data. The non-stationary state may include a stationary state and a non-stationary state. The motion sensor may include, but is not limited to, a gyroscope sensor, an acceleration sensor, etc. Among them, the gyroscope sensor can determine the angular velocity of the wearable device 100 around three axes (i.e., the x, y, and z axes). The acceleration sensor can detect the magnitude of the acceleration of the wearable device 100 in various directions (generally three axes). When the wearable device 100 is stationary, the magnitude and direction of gravity can be detected.

[0271] Heart rate sensor 203C is used to collect heart rate data, which can be used to estimate the user's frontal blood pressure. Heart rate sensor 203C can be any of a PPG sensor, a laser sensor, an ultrasonic sensor, and a magnetic induction sensor. Wearable device 100 can have one or more heart rate sensors 203C. Optionally, heart rate sensor 203C can include a first heart rate sensor and a second heart rate sensor.

[0272] Pressure sensor 203D is used to sense pressure signals and convert them into electrical signals. There are many types of pressure sensors 203D, including resistive, inductive, and capacitive pressure sensors. A capacitive pressure sensor may include at least two parallel plates made of conductive material. When a force acts on pressure sensor 203D, the capacitance between the electrodes changes, and wearable device 100 determines the intensity of the pressure based on this change in capacitance. Wearable device 100 can have one or more pressure sensors 203D.

[0273] ECG sensor 203E is used to collect ECG information. ECG information can be used together with heart rate data to estimate the user's blood pressure. ECG sensor 203E can be an ECG sensor. The number of ECG sensors 203E on wearable device 100 can be one or more.

[0274] In some embodiments, the ECG sensor 203E may include multiple electrodes, such as a first electrode and a second electrode. The heart rate sensor 203C and pressure sensor 203D may be disposed on the button 101, with the first electrode disposed on the surface of the button 101 and the second electrode disposed on the surface of the wearing surface 105. When a press is performed on the button 101, the first and second electrodes form a circuit, and the wearable device 100 can collect ECG signals via the first and second electrodes, collect finger PPG signals via the heart rate sensor 203C on the button 101, and collect finger pressure signals via the pressure sensor 203D on the button 101. The wearable device 100 can then estimate the user's blood pressure based on the finger pressure signal, finger PPG signal, and ECG signal. Optionally, the wearable device 100 can also detect the intensity of the user's press on the button 101 and guide the user to adjust the pressure, so that the wearable device 100 can collect higher-quality PPG data, thereby improving the accuracy of the estimated blood pressure value.

[0275] Optionally, the wearable device 100 may not include the electrocardiogram sensor 203E, and estimate the user's blood pressure value based on the finger pressure signal and the finger PPG signal.

[0276] Optionally, the wearable device 100 may not include the electrocardiogram sensor 203E and the pressure sensor 203D, and estimate the user's blood pressure value based on the finger PPG signal.

[0277] In some embodiments, the ECG sensor 203E may include multiple electrodes, such as a first electrode and a second electrode. The heart rate sensor 203C and the pressure sensor 203D may be disposed on the wearing surface 105. The first electrode may be disposed on the surface of the button 101, or the first electrode may be disposed elsewhere on the watch body, such as on the side surface of the wearable device 100 or on the surface of the display surface 104. When a press operation is performed on the button 101 or other locations on the watch body, the first electrode and the second electrode form a circuit, and the wearable device 100 can collect ECG signals through the first and second electrodes, collect wrist PPG signals through the heart rate sensor 203C on the wearing surface 105, and collect wrist pressure signals through the pressure sensor 203D on the wearing surface 105. The wearable device 100 can then estimate the user's blood pressure using the wrist pressure signal, wrist PPG signal, and ECG signal. Optionally, the wearable device 100 can also detect the size of the wrist pressure signal and guide the user to adjust the tightness of the wearable component 103 so that the wearable device 100 can collect PPG data of better quality to improve the accuracy of the estimated blood pressure value.

[0278] Optionally, the wearable device 100 may not include the electrocardiogram sensor 203E, and estimate the user's blood pressure value based on the wrist pressure signal and the wrist PPG signal.

[0279] The button 204 includes a power button, etc. Optionally, the wearable device 100 may not include the electrocardiogram sensor 203E and the pressure sensor 203D, and estimate the user's blood pressure value based on the wrist PPG signal.

[0280] Key 204 can be a mechanical key or a touch key. The wearable device can receive key input and generate key signal input related to user settings and function control of the wearable device. Optionally, key 204 can include both key 101 and key 102 shown in FIG1 . Optionally, key 204 can include only key 101 or only key 102 shown in FIG1 .

[0281] The display screen 205 is used to display images, videos, etc. The display screen 205 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (QLED), etc. In some embodiments, the wearable device may include one or N display screens 205, where N is a positive integer greater than 1.

[0282] Motor 206 can generate vibration prompts. Motor 206 can be used for incoming call vibration prompts, and can also be used for touch vibration feedback. For example, touch operations acting on different applications (such as taking pictures, audio playback, etc.) can correspond to different vibration feedback effects. Motor 206 can also correspond to different vibration feedback effects for touch operations acting on different areas of the display screen 205. In some embodiments, the wearable device can also use different motor vibration feedback according to the pressure of the pressure sensor 203D to remind or interact with the user.

[0283] The speaker 207, also called a "speaker", is used to convert the audio electrical signal into a sound signal. The wearable device can listen to music or listen to hands-free calls through the speaker 207.

[0284] Microphone 208 , also known as a "microphone" or "speaker," converts sound signals into electrical signals. When making a call or sending a voice message, a user can place their mouth close to microphone 208 to input the sound signal into microphone 208 . A wearable device may include at least one microphone 208 .

[0285] The internal memory 209A can be used to store computer executable program codes, which include instructions. The processor 200A executes various functional applications and data processing of the wearable device by running the instructions stored in the internal memory 209A. V may include a program storage area and a data storage area. Among them, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area can store data (such as audio data) created during the use of the internal memory 209A, etc. In addition, the internal memory 209A may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc.

[0286] The SIM card interface 209B is used to connect a SIM card. The SIM card can be connected to or removed from the wearable device by inserting it into or removing it from the SIM card interface 209B. The wearable device can support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 209B can support NanoSIM cards, MicroSIM cards, SIM cards, etc. Multiple cards can be inserted into the same SIM card interface 209B at the same time. The types of the multiple cards can be the same or different. The SIM card interface 209B can also be compatible with different types of SIM cards. The SIM card interface 209B can also be compatible with external memory cards. The wearable device interacts with the network through the SIM card to implement functions such as calls and data communications. In some embodiments, the wearable device uses an eSIM, i.e., an embedded SIM card. The eSIM card can be embedded in the wearable device and cannot be separated from the wearable device. In some embodiments, the wearable device may also not include a SIM card interface 209B.

[0287] USB port 209C is an interface that complies with USB standards and specifications, and may be a MiniUSB port, MicroUSB port, USB Type-C port, or the like. USB port 209C can be used to connect a charger to charge a wearable device, or to transfer data between USB port 209C and peripheral devices. It can also be used to connect headphones to play audio. This port can also be used to connect other electronic devices, such as augmented reality devices.

[0288] The power management module 210 is used to connect the battery 211, the charging management module 212, and the processor 200A. The power management module 210 receives input from the battery 211 and / or the charging management module 212 and provides power to the processor 200A, the internal memory 209A, the display 205, and the wireless communication module 201. The power management module 210 can also be used to monitor parameters such as battery capacity, battery cycle count, and battery health status (leakage, impedance). In some other embodiments, the power management module 210 can also be provided in the processor 200A. In other embodiments, the power management module 210 and the charging management module 212 can also be provided in the same device.

[0289] The charging management module 212 is configured to receive charging input from a charger. The charger can be either a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 212 can receive charging input from the wired charger via the USB interface 209C. In some wireless charging embodiments, the charging management module 212 can receive wireless charging input via the wearable device's wireless charging coil. While charging the battery 211, the charging management module 212 can also power the wearable device via the power management module 210.

[0290] The inflatable component 213 is used for inflation and deflation. In some embodiments of the present application, the wearable device 100 inflates the airbag 214 via the inflatable component 213. The inflatable component 213 and the airbag 214 may be connected via an air path connection assembly 215. After inflation, the airbag 214 compresses the user's blood vessels, allowing the air pressure sensor 216 to obtain pressure data and thereby determine the user's blood pressure.

[0291] It should be noted that the air path conducting component 215 can be a separate component, or the air path conducting component 215 can also be an air path formed by the combination of other hardware modules, or the air path conducting component 215 can also be a part of other components, for example, it can be a part of the inflatable component 213, or it can be a part of the airbag 214.

[0292] The air pressure sensor 216 is used to obtain pressure data. In some embodiments of the present application, the wearable device 100 can use the air pressure sensor 216 to measure the air pressure in the airbag 214 and obtain pressure data. In some embodiments of the present application, a portion of the air pressure sensor 216 can be located inside the airbag 214 to sense the air pressure in the airbag 214.

[0293] The airbag 214 is attached to the body-facing side of the wearable component 103. The inflatable component 213 is connected to the airbag 214 via an air passage assembly 215. The airbag 214 can be attached to only one side of the wearable component 103 and can be positioned above an artery on the user's wrist, such as the radial artery.

[0294] Optionally, the inflatable component 213 can be located inside the body of the wearable device 100, and the airbag 214 can be connected to the watchband buckle, and the airbag 214 is connected to the dial through the air hole cover. Correspondingly, the airbag 214 can be separated from the watchband or the dial.

[0295] In some embodiments, the wearable device 100 may further include a magnetic sensor. For example, the magnetic sensor may be a Hall sensor. In some embodiments of the present application, the wearable device 100 may use the magnetic sensor to determine whether the airbag 214 on the wearable device 100 has been removed. For example, a magnet may be configured on the airbag 214 or on the wearable component 103 to which the airbag 214 is connected. The wearable device 100 may use the magnetic sensor to determine the magnetic flux generated by the magnet on the airbag 214 or on the wearable component 103, thereby determining whether the airbag 214 on the wearable device 100 has been removed.

[0296] It is understood that the structures illustrated in the embodiments of the present invention do not constitute specific limitations on wearable devices. In other embodiments of the present application, the wearable device may include more or fewer components than shown, or combine or separate certain components, or arrange the components differently. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0297] FIG5 shows a flow chart of a method for the wearable device 100 to determine a blood pressure measurement solution.

[0298] S501: The wearable device 100 obtains first information. The first information includes but is not limited to one or more of the following: user information, physical condition information, environmental information, motion data, etc.

[0299] The first information includes one or more of the following: user information, environmental information, motion data, etc.

[0300] User information includes but is not limited to one or more of the following: blood pressure, heart rate, body temperature, pulse, respiratory rate, blood sugar, smoking history, drinking history, medical history, medication history, lifestyle habits, gender, age, height, weight, etc.

[0301] Environmental information includes any one or more of the following: climate, temperature, altitude, season, weather, time, date, etc.

[0302] The wearable device 100 may obtain the first information in any one or more of the following ways:

[0303] Method 1: The first information is actively input into the wearable device 100 by the user.

[0304] In one possible implementation, when a user requires the wearable device 100 to recommend a blood pressure measurement plan for the user, the user can actively input first information into the wearable device 100, so that the wearable device 100 can recommend a blood pressure measurement plan for the user based on the first information.

[0305] In other possible implementations, the first information may also be input into the wearable device 100 by the user at irregular intervals.

[0306] Method 2: The first information is obtained by the wearable device 100 from other electronic devices or from the wearable device 100.

[0307] The first information may be stored in the wearable device 100 , and the wearable device 100 may obtain the first information from the wearable device 100 .

[0308] The wearable device 100 can establish a communication connection with other electronic devices (such as a mobile phone), and the wearable device 100 can obtain the first information from the electronic device. The first information stored in the electronic device can be actively input by the user.

[0309] Optionally, the blood pressure in the user information may be measured in real time by the wearable device 100, or may be a historical blood pressure value. The historical blood pressure value may be obtained based on multiple blood pressure values ​​measured by the user over a period of time, such as the average of multiple blood pressure values, or the highest blood pressure value measured by the user over a period of time, or the lowest blood pressure value measured by the user over a period of time.

[0310] Optionally, the blood pressure in the user information may also be obtained through one or more of the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0311] The wearable device 100 may also obtain the first information based on other methods, which is not limited in this application.

[0312] S502: The wearable device 100 determines a first blood pressure measurement scheme based on the first information. The first blood pressure measurement scheme includes at least one of the following blood pressure measurement methods: a first blood pressure measurement method, a second blood pressure measurement method, and a third blood pressure measurement method. The first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method are different.

[0313] After obtaining the first information, the wearable device 100 may determine a first blood pressure measurement scheme based on the first information. The first blood pressure measurement scheme includes at least one of the following blood pressure measurement methods: a first blood pressure measurement method, a second blood pressure measurement method, and a third blood pressure measurement method, where the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method are different.

[0314] The first blood pressure measurement protocol may further include information such as the number of times the first blood pressure measurement method was performed, the number of times the second blood pressure measurement method was performed, the number of times the third blood pressure measurement method was performed, the measurement time of the first blood pressure measurement method, the measurement time of the second blood pressure measurement method, the measurement time of the third blood pressure measurement method, and the execution time of the first blood pressure measurement protocol. The execution time of the first blood pressure measurement protocol may be at least one day, for example, one day, seven days, or ten days.

[0315] Optionally, the measurement time of the blood pressure measurement method may include but is not limited to a single start time, a single end time, a single measurement time, and an interval between two adjacent blood pressure measurements.

[0316] The number of times of the first blood pressure measurement method, the number of times of the second blood pressure measurement method, and the number of times of the third blood pressure measurement method are all different, or are partially the same, or are all the same.

[0317] The measurement time of the first blood pressure measurement method, the measurement time of the second blood pressure measurement method, and the measurement time of the third blood pressure measurement method are all different, or are partially the same, or are all the same.

[0318] The wearable device 100 generates different first blood pressure measurement solutions based on different first information. For example, different users may have different first information, and the wearable device 100 may generate different blood pressure measurement solutions for different users. For the same user, the first blood pressure measurement solutions generated based on different first information may also be different.

[0319] For example, for a user with normal blood pressure, the number of times the first blood pressure measurement method is performed in the blood pressure measurement plan may be less than the number of times the second blood pressure measurement method is performed, and the number of times the second blood pressure measurement method is performed may be less than the number of times the third blood pressure measurement method is performed.

[0320] For another example, the number of times the first blood pressure measurement method is performed in a blood pressure measurement plan for a user with normal blood pressure can be less than the number of times the first blood pressure measurement method is performed in a blood pressure measurement plan for a user with abnormal blood pressure. In this way, the number of times the first blood pressure measurement method is performed can be appropriately increased for users with abnormal blood pressure to achieve accurate blood pressure monitoring for users with abnormal blood pressure.

[0321] For example, the first blood pressure measurement plan may include: at 7 a.m., measuring blood pressure using the first blood pressure measurement method. Between 7 a.m. and 9 a.m., measuring blood pressure using the third blood pressure measurement method. At 9 a.m., measuring blood pressure using the second blood pressure measurement method. At 9:30 a.m., measuring blood pressure using the second blood pressure measurement method. At 10 a.m., measuring blood pressure using the second blood pressure measurement method. Between 9:30 a.m. and 10 a.m., measuring blood pressure using the third blood pressure measurement method. Between 10 a.m. and 6 p.m., measuring blood pressure using the third blood pressure measurement method. At 6 p.m., measuring blood pressure using the first blood pressure measurement method. Between 6 p.m. and 7 p.m., measuring blood pressure using the third blood pressure measurement method. At 7 p.m., measuring blood pressure using the second blood pressure measurement method. At 10 p.m., measuring blood pressure using the second blood pressure measurement method. Between 10 p.m. and 7 a.m. the following morning, measuring blood pressure using the third blood pressure measurement method. Thus, after the user falls asleep at night, it is inconvenient for the user to use the first blood pressure measurement method or the second blood pressure measurement method, and in order not to disturb the user's rest, the wearable device 100 can use the third blood pressure measurement method to measure the user's blood pressure. Optionally, if the user is in a deep sleep stage and is not easily affected by the airbag pressurization, the wearable device 100 can also use the first blood pressure measurement method to measure the user's blood pressure while the user is asleep at night.

[0322] In some embodiments, after obtaining the first blood pressure measurement plan, the wearable device 100 may prompt the user to view, modify, and save the first blood pressure measurement plan.

[0323] The wearable device 100 may recommend the first blood pressure measurement solution when:

[0324] Method 1: After the user inputs the first information and generates the first blood pressure measurement plan based on the first information, the wearable device 100 can recommend the first blood pressure measurement plan to the user.

[0325] In one possible implementation, when a user requires the wearable device 100 to recommend a blood pressure measurement solution for the user, the user can actively input first information into the wearable device 100. After obtaining the first information and obtaining a first blood pressure measurement solution based on the first information, the wearable device 100 can prompt the user to view the first blood pressure measurement solution.

[0326] Method 2: The wearable device 100 periodically / irregularly recommends the first blood pressure measurement solution to the user.

[0327] The first information may be constantly changing, and the wearable device 100 may periodically / irregularly generate a first blood pressure measurement solution based on the first information. After obtaining the first blood pressure measurement solution, the wearable device 100 may prompt the user to view the first blood pressure measurement solution.

[0328] The wearable device 100 may also recommend the first blood pressure measurement solution to the user based on other methods, which is not limited in this application.

[0329] Optionally, the wearable device 100 may also prompt the user to view the first blood pressure measurement plan when the user is not using the wearable device 100 to avoid affecting the user's normal use of the wearable device 100.

[0330] Optionally, the wearable device 100 may also prompt the user to view the first blood pressure measurement plan when the user is not sleeping to avoid affecting the user's rest. For example, the wearable device 100 may determine whether the user is sleeping based on information such as the collected heart rate and motion data.

[0331] 6A-6C are schematic diagrams showing the wearable device 100 prompting the user to view, modify, and save the first blood pressure measurement plan.

[0332] After obtaining the first blood pressure measurement plan, the wearable device 100 may display the user interface shown in FIG6A , which includes options 6001 and 6002. The user may view the contents of the first blood pressure measurement plan through option 6001. The user may also save and use the first blood pressure measurement plan through option 6002.

[0333] For example, as shown in FIG6A , the wearable device 100 may receive a user input operation for option 6001, such as a single click. In response to the user input operation, the wearable device 100 may display the user interface shown in FIG6B .

[0334] For example, as shown in FIG6B , the user interface shown in FIG6B shows the duration of the first blood pressure measurement plan, for example, the duration can be 7 days. The user interface shown in FIG6B also includes option 6003 , through which the user can continue to view other contents of the first blood pressure measurement plan.

[0335] For example, as shown in FIG6B , the wearable device 100 may receive a user input operation for option 6003 , such as a single click. In response to the user input operation, the wearable device 100 may display the user interface shown in FIG6C .

[0336] For example, as shown in FIG6C , the user interface shown in FIG6C includes a blood pressure measurement strategy for a first blood pressure measurement scheme, and the blood pressure measurement strategy may include blood pressure measurement methods at different times. For example, the blood pressure measurement strategy shown in FIG6C may include: at 7 a.m., measuring blood pressure using the first blood pressure measurement method. At 9 a.m., measuring blood pressure using the second blood pressure measurement method. At 11 a.m., measuring blood pressure using the third blood pressure measurement method. At 1 p.m., measuring blood pressure using the third blood pressure measurement method. At 3 p.m., measuring blood pressure using the third blood pressure measurement method. The user may also slide the user interface shown in FIG6C to view other blood pressure measurement strategies for the first blood pressure measurement scheme.

[0337] In some embodiments, the wearable device 100 may also receive a user operation to modify the blood pressure measurement strategy of the first blood pressure measurement scheme, such as changing the time of the blood pressure measurement method, changing the blood pressure measurement method, etc. The wearable device 100 may also receive a user operation to save the modified first blood pressure measurement scheme. The wearable device 100 may also receive a user operation to save the unmodified first blood pressure measurement scheme.

[0338] In some embodiments, the user can also modify the content of the first blood pressure measurement method. For example, the wearable device 100 may receive a user input operation, such as a single click, for the second blood pressure measurement method option corresponding to 9:00 AM shown in FIG6C . In response to the user input operation, the wearable device 100 may receive another user operation to modify the "second blood pressure measurement method" corresponding to 9:00 AM to the "third blood pressure measurement method." Afterwards, the wearable device 100 may display a user interface similar to that shown in FIG6C , but with the "third blood pressure measurement method" corresponding to 9:00 AM.

[0339] In some embodiments, after obtaining the first blood pressure measurement solution, the wearable device 100 may obtain the user's blood pressure value and, based on the user's blood pressure value, determine whether the first blood pressure measurement solution needs to be modified. If the user's blood pressure is abnormal, the wearable device 100 may modify the first blood pressure measurement solution so that the modified first blood pressure measurement solution can more accurately monitor the user's blood pressure. If the user's blood pressure is normal, the wearable device 100 may appropriately reduce the first blood pressure measurement method or the second blood pressure measurement method so that the modified first blood pressure measurement solution improves the user's comfort.

[0340] Optionally, the wearable device 100 may confirm whether the first blood pressure measurement scheme needs to be modified before using the first blood pressure measurement scheme. The wearable device 100 may also confirm whether the first blood pressure measurement scheme needs to be modified during the execution of the first blood pressure measurement scheme.

[0341] FIG7A is a schematic flow chart showing a method in which the wearable device 10 determines whether to modify the first blood pressure measurement scheme based on the user's blood pressure value.

[0342] S701: The wearable device 100 obtains a first blood pressure value.

[0343] In one possible implementation, the first blood pressure value may be manually input by the user into the wearable device 100. For example, the user uses a blood pressure monitor to measure the first blood pressure value, and the user may manually input the first blood pressure value into the wearable device 100.

[0344] In other possible implementations, the first blood pressure value may be obtained by the wearable device 100 using a more accurate blood pressure measurement method, for example, obtained based on the first blood pressure measurement method, where the blood pressure measurement result of the first blood pressure measurement method is closer to the user's actual blood pressure value. For example, after the wearable device 100 obtains the first blood pressure measurement solution, or before starting to measure blood pressure based on the first blood pressure measurement solution, the wearable device 100 may obtain the first blood pressure value based on the first blood pressure measurement method to determine the user's blood pressure condition, and determine whether to adjust the first blood pressure measurement solution based on the first blood pressure value.

[0345] The wearable device 100 may also obtain the first blood pressure value based on other methods, which is not limited in this application.

[0346] S702: The wearable device 100 determines whether the first blood pressure value is too high or too low.

[0347] When it is determined that the first blood pressure value is too high or too low, it indicates that the user's blood pressure is abnormal, and the wearable device 100 can change the first blood pressure measurement scheme.

[0348] If it is determined that the first blood pressure value is neither too high nor too low, that is, the user's blood pressure is normal, the wearable device 100 may modify the first blood pressure measurement scheme so that the modified first blood pressure measurement scheme improves the user's comfort. Alternatively, the wearable device 100 may not modify the first blood pressure measurement scheme.

[0349] Here, the first blood pressure value being high may mean that the first blood pressure value is greater than a first threshold value, for example, the first threshold value may be 120 mmHg. The first blood pressure value being low may mean that the first blood pressure value is less than a second threshold value, for example, the second threshold value may be 60 mmHg. The first blood pressure value being normal may mean that the first blood pressure value is greater than the second threshold value and less than the first threshold value, for example, the first blood pressure value is greater than 60 mmHg and less than 120 mmHg.

[0350] Optionally, the first threshold and the second threshold may be statistical data, or may be an average of the blood pressure of the user of the wearable device 100 over a period of time.

[0351] If the first blood pressure value is normal, execute S703.

[0352] When the first blood pressure value is high or low, S704 is executed.

[0353] S703. The wearable device 100 obtains a second blood pressure measurement scheme, where the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme.

[0354] In some embodiments, when it is determined that the first blood pressure value is normal, the wearable device 100 may also save the first blood pressure measurement scheme, that is, there is no need to modify the first blood pressure measurement scheme.

[0355] In some embodiments, when it is determined that the first blood pressure value is normal, the wearable device 100 may also appropriately reduce the blood pressure measurement method that affects the user's comfort, such as reducing the number of executions of the first blood pressure measurement method or reducing the number of executions of the second blood pressure measurement method, to obtain a second blood pressure measurement solution.

[0356] In some embodiments, when the first blood pressure value is determined to be normal, the wearable device 100 may also replace the blood pressure measurement method that affects the user's comfort with a blood pressure measurement method that is more comfortable for the user. For example, the first blood pressure measurement method may be replaced with the second blood pressure measurement method or the third blood pressure measurement method, or the second blood pressure measurement method may be replaced with the third blood pressure measurement method.

[0357] Optionally, the wearable device 100 may obtain a second blood pressure measurement solution based on the first blood pressure value.

[0358] Optionally, the wearable device 100 may also modify the first blood pressure measurement solution based on the first blood pressure value to obtain a second blood pressure measurement solution.

[0359] In one possible implementation, when it is determined that the first blood pressure value is normal, the wearable device 100 reduces the number of executions of the first blood pressure measurement method, which may include but is not limited to any of the following situations:

[0360] Case 1: When the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is greater than the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0361] Case 2: When the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is greater than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0362] In other possible implementations, when it is determined that the first blood pressure value is normal, the wearable device 100 reduces the number of executions of the second blood pressure measurement method, which may include: when the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is less than or equal to the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme, the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is less than the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, and the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0363] In other embodiments, when it is determined that the first blood pressure value is normal, the wearable device 100 may also keep the number of executions of the first blood pressure measurement method unchanged, increase the number of executions of the second blood pressure measurement method, and reduce the number of executions of the third blood pressure measurement method.

[0364] S704. The wearable device 100 obtains a second blood pressure measurement scheme, where the first blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the first blood pressure measurement method in the first blood pressure measurement scheme, or the second blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the second blood pressure measurement method in the first blood pressure measurement scheme.

[0365] When it is determined that the first blood pressure value is abnormal, the wearable device 100 may increase the number of executions of the first blood pressure measurement method or increase the number of executions of the second blood pressure measurement method.

[0366] Optionally, when the number of executions of the first blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the first blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the second blood pressure measurement method in the second blood pressure measurement scheme is more than the number of executions of the second blood pressure measurement method in the first blood pressure measurement scheme, the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is the same as the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme, or the number of executions of the third blood pressure measurement method in the second blood pressure measurement scheme is less than the number of executions of the third blood pressure measurement method in the first blood pressure measurement scheme.

[0367] Optionally, after the wearable device 100 obtains the first blood pressure measurement solution and executes the first blood pressure measurement solution for a first duration, the wearable device 100 may obtain multiple blood pressure values. The wearable device 100 may update the first blood pressure measurement solution based on the multiple blood pressure values ​​to obtain a third blood pressure measurement solution.

[0368] For example, when it is determined that the user's blood pressure is normal based on multiple blood pressure values, the wearable device 100 can appropriately reduce the number of measurements of the first blood pressure measurement method in the first blood pressure measurement scheme or reduce the number of measurements of the second blood pressure measurement method to improve the comfort of the wearable device 100 in measuring blood pressure.

[0369] For another example, when it is determined that the user's blood pressure is abnormal based on multiple blood pressure values, the wearable device 100 can appropriately increase the number of measurements of the first blood pressure measurement method in the first blood pressure measurement scheme or increase the number of measurements of the second blood pressure measurement method to improve the accuracy of the wearable device 100 in measuring blood pressure, so as to more accurately monitor the blood pressure of users with abnormal blood pressure.

[0370] Optionally, after the wearable device 100 updates the blood pressure measurement solution, for example, after obtaining the second blood pressure measurement solution or the third blood pressure measurement solution, the wearable device 100 may prompt the user to view the updated blood pressure measurement solution.

[0371] For example, the wearable device 100 may display the user interface shown in FIG7B , which includes a prompt message stating "The blood pressure measurement plan has been updated for you." The user interface shown in FIG7B also includes options 7001 and 7002. Option 7001 allows the user to view the updated blood pressure measurement plan. Option 7002 also allows the user to save and use the updated blood pressure measurement plan.

[0372] In some embodiments, after obtaining the first blood pressure measurement scheme, the wearable device 100 may also verify the accuracy of the second blood pressure measurement method or the third blood pressure measurement method. If the accuracy of the second blood pressure measurement method or the third blood pressure measurement method is not high, the wearable device 100 may reduce the number of executions of the second blood pressure measurement method or the third blood pressure measurement method. For example, the wearable device 100 may collect physiological data through the second blood pressure measurement method or the third blood pressure measurement method. If the physiological data collected by the second blood pressure measurement method or the third blood pressure measurement method differs greatly from the historical physiological data, it indicates that the accuracy of the second blood pressure measurement method or the third blood pressure measurement method is not high. In this case, the wearable device 100 may reduce the number of executions of the second blood pressure measurement method or reduce the number of executions of the third blood pressure measurement method.

[0373] If the physiological data collected by the second blood pressure measurement method or the third blood pressure measurement method is not much different from the historical physiological data, it means that the accuracy of the second blood pressure measurement method or the third blood pressure measurement method meets the requirements. The wearable device 100 can keep the number of executions of the second blood pressure measurement method unchanged or increase the number of executions of the second blood pressure measurement method, or keep the number of executions of the third blood pressure measurement method unchanged or increase the number of executions of the third blood pressure measurement method.

[0374] After determining the blood pressure measurement scheme, the wearable device 100 can measure the user's blood pressure using the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method respectively to monitor the user's blood pressure.

[0375] Among them, the second blood pressure measurement method and the third blood pressure measurement method estimate the user's blood pressure value through the collected physiological data. In order to improve the accuracy of measuring blood pressure by the second blood pressure measurement method and the third blood pressure measurement method, the wearable device 100 can calibrate the models used to estimate blood pressure in the second blood pressure measurement method and the third blood pressure measurement method.

[0376] In some embodiments, the wearable device 100 can not only use one blood pressure measurement method to measure blood pressure, but also combine multiple blood pressure measurement methods to obtain multiple blood pressure values ​​respectively, and use the average of these multiple blood pressure values ​​as the currently detected blood pressure value.

[0377] During the model calibration process and blood pressure measurement process, the wearable device 100 can prompt the user to maintain a posture to complete the model calibration process or blood pressure measurement process. In this way, the user can complete the model calibration process or blood pressure measurement process without changing posture, saving user operation. In some embodiments, the model calibration process or blood pressure measurement process can also be referred to as a non-sensing scenario.

[0378] The wearable device 100 may also prompt the user to adopt different postures to complete the model calibration process or blood pressure measurement process. In this way, the user can change different postures to complete the model calibration process or blood pressure measurement process, and the user maintains each posture for a shorter time. In some embodiments, the model calibration process or blood pressure measurement process may also be referred to as a sensory scene.

[0379] Next, the calibration process of multiple blood pressure measurement methods and the blood pressure measurement process are introduced in combination with sensory and non-sensing scenarios.

[0380] 1. Sentimental Scenes

[0381] The sensory scenes may include the sensory calibration scene and the sensory blood pressure measurement scene.

[0382] 1. Sensory calibration scene

[0383] (1) Calibrate the second target model of the second blood pressure measurement method.

[0384] A. First calibration of the second target model.

[0385] The second target model may be a model used to estimate blood pressure values ​​in the second blood pressure measurement method. The second target model receives the second information as input, and outputs the blood pressure value. The second information may be collected by the second blood pressure measurement device. The second information may include the first heart rate data, or the first heart rate data and electrocardiogram data, or the first heart rate data, pressure data, and electrocardiogram data.

[0386] Optionally, the input of the second target model is not limited to the second information, and may also include other information, such as gyroscope, acceleration data, etc., which is not limited in this application.

[0387] Before calibrating the second target model for the first time, if the user has not used the wearable device 100 to measure blood pressure, and no historical blood pressure information is stored in the wearable device 100, or the user has used the wearable device 100 to measure blood pressure, but the historical blood pressure information stored in the wearable device 100 is relatively small, the wearable device 100 can collect the second information multiple times and determine whether the user is in a stationary state based on the second information collected multiple times before and after. When it is determined that the user is in a stationary state, the wearable device 100 recalibrates the second target model. When it is determined that the user is in a non-stationary state, the wearable device 100 can also prompt the user to calibrate the second target model later when the user is in a stationary state. In this way, the wearable device 100 can calibrate the second target model based on the data collected when the user is in a stationary state, which can improve the accuracy of the calibrated second target model.

[0388] Exemplarily, the multiple times may be two times, and is not limited to collecting the second information twice, but may also collect more second information, which is not limited in this application.

[0389] Next, the timing of the first calibration of the second target model by the wearable device 100 is introduced.

[0390] Opportunity 1: Upon detecting a specific event, the wearable device 100 prompts the user to calibrate the second target model.

[0391] For example, the specific event may be an event of detecting that the wearable device 100 is powered on. In the case where the second target model has not been calibrated, after detecting that the wearable device 100 is powered on, the wearable device 100 may prompt the user to calibrate the second target model.

[0392] For example, the specific event may be an event in which the wearable device 100 is detected to be about to measure blood pressure based on the second target model. For example, if the blood pressure measurement time is time t1, and a period of time before time t1, such as time t2, is earlier than time t1, the wearable device 100 may prompt the user to calibrate the second target model.

[0393] The specific event is not limited to the above-mentioned specific events, and the specific event may also be other events, which is not limited in this application.

[0394] Opportunity 2: The wearable device 100 receives a user operation to calibrate the second target model.

[0395] In some embodiments, the user may also actively trigger the wearable device 100 to calibrate the second target model.

[0396] Opportunity three: the wearable device 100 receives an instruction from another electronic device to start calibrating the second target model and starts calibrating the second target model.

[0397] In some embodiments, the wearable device 100 can establish a communication connection with other electronic devices (such as a mobile phone, tablet computer, etc.). When a user operation for calibrating the second target model is detected, the other electronic device can send an instruction to the wearable device 100 to start calibrating the second target model. Upon receiving the instruction to start calibrating the second target model, the wearable device 100 can start calibrating the second target model.

[0398] The timings for starting to calibrate the second target model are not limited to the above-mentioned timings. The wearable device 100 can also start to calibrate the second target model based on other timings, and this application does not limit this.

[0399] Exemplarily, when starting to calibrate the second target model, the wearable device 100 can first prompt the user to maintain the posture shown in Figure 8A, and collect third information through the first blood pressure measurement method. The third information includes blood pressure value A (at least high pressure SBP and low pressure DBP) and / or pressure data A, and pressure data A can be used to obtain blood pressure value A.

[0400] After obtaining the third information, the wearable device 100 may prompt the user to maintain the posture shown in FIG8B and collect the second information using the second blood pressure measurement method.

[0401] After obtaining the second information, the wearable device 100 can prompt the user to maintain the posture shown in Figure 8C and collect fourth information through the first blood pressure measurement method. The fourth information includes blood pressure value B and / or pressure data B. Pressure data B can be used to obtain blood pressure value B.

[0402] After obtaining the third and fourth information, the wearable device 100 may determine whether the difference between the third and fourth information is less than a threshold. If the difference is less than the threshold, it indicates that the user is stationary, and the wearable device 100 may calibrate the second target model based on the second, third, and / or fourth information. If the difference is greater than the threshold, it indicates that the user is not stationary, and the wearable device 100 may prompt the user to calibrate the second target model later.

[0403] Optionally, when the wearable device 100 is calibrating the second target model, the wearable device 100 may display a prompt message as shown in FIG8D , where the prompt message includes “Calibrating…”, which prompts the user that the wearable device 100 is calibrating the second target model.

[0404] Optionally, after the calibration of the second target model is completed, the wearable device 100 may also display the prompt information shown in FIG8E , where the prompt information includes “Calibration completed!”, and the prompt information prompts the user that the calibration of the second target model is completed.

[0405] It should be noted that in other possible implementations, the wearable device 100 may first display the postures shown in Figures 8A and 8C to collect the third information and the fourth information respectively. After determining that the difference between the third information and the fourth information is less than the threshold, the wearable device 100 then displays the posture shown in Figure 8B to prompt the user to collect the second information, and calibrates the second target model through the second information, the third information and / or the fourth information.

[0406] In other possible implementations, the wearable device 100 first displays the posture shown in Figure 8B to prompt the user to collect the second information, and then displays the postures shown in Figure 8A and Figure 8C respectively to collect the third information and the fourth information. After determining that the difference between the third information and the fourth information is less than the threshold, the wearable device 100 calibrates the second target model through the second information, the third information and / or the fourth information.

[0407] In particular, when the third information includes blood pressure value A and the fourth information includes blood pressure value B, the difference between the third information and the fourth information being less than a threshold value may mean that the difference between blood pressure value A and blood pressure value B is less than the threshold value. When the third information includes pressure data A and the fourth information includes pressure data B, the difference between the third information and the fourth information being less than a threshold value may mean that the difference between pressure data A and pressure data B is less than the threshold value. For example, the difference between an evaluation parameter extracted based on pressure data A and an evaluation parameter extracted based on pressure data B may be less than a threshold value.

[0408] The wearable device 100 calibrates the second target model based on the second information, the third information, and / or the fourth information, which may include: the wearable device 100 inputs the second information into the second target model, and the second target model outputs a blood pressure value C. The wearable device 100 then obtains a blood pressure value D, which may be a blood pressure value A, a blood pressure value B, or an average of blood pressure values ​​A and B. After obtaining blood pressure values ​​C and D, the wearable device 100 may calibrate the second target model based on the difference between blood pressure values ​​C and D. The blood pressure value output by the calibrated second target model based on the second information is more accurate in blood pressure measurement than the blood pressure value output by the second target model based on the second information before calibration.

[0409] In some embodiments, when determining whether the user is in a stationary or non-stationary state based on motion data collected by the motion sensor, the wearable device 100 may also collect third information or fourth information once using the first blood pressure measurement method. The order in which the third information or fourth information is obtained after the second information is not limited.

[0410] In some embodiments, if the difference between the third information and the fourth information is greater than a second threshold, the wearable device 100 may also calibrate the second target model based on the collected data. The wearable device 100 may obtain the blood pressure value D based on the pressure data in the third information and / or the fourth information to improve the accuracy of the blood pressure value D obtained by the wearable device 100 when the user is not in a stationary state.

[0411] The wearable device 100 can obtain the blood pressure value D based on the pressure data in the third information and / or the fourth information in any of the following ways, but not limited to.

[0412] Method 1: When condition A is met, the blood pressure value D is obtained by the wearable device 100 based on the pressure data A in the second information and the third information. The blood pressure value D can also be obtained by the wearable device 100 based on the second information and the pressure data B in the fourth information. The blood pressure value D can also be obtained by the wearable device 100 based on the second information, the pressure data A in the third information and the pressure data B in the fourth information.

[0413] Method 2: When condition B is met, the blood pressure value D is obtained by the wearable device 100 based on the pressure data A in the third information, and the second blood pressure value can also be obtained by the wearable device 100 based on the pressure data B in the fourth information. The second blood pressure value can also be obtained by the wearable device 100 based on the pressure data A in the third information and the pressure data B in the fourth information.

[0414] For example, condition A may be that the user is in a non-stationary state and the quality of pressure data A or pressure data B does not meet the requirements, and condition B may be that the user is in a non-stationary state and the quality of pressure data A and pressure data B meets the requirements.

[0415] It should be noted that condition A and condition B can also be other conditions, and this application does not limit this.

[0416] In some embodiments, the wearable device 100 may also determine the blood pressure value D based on other methods. For example, when condition C is met, the blood pressure value D is obtained by the wearable device 100 based on the second information, the pressure data A in the third information, and / or the pressure data B in the fourth information. Condition C may be that the user is in a non-stationary state. It should be noted that condition C may also be other conditions, and this application does not limit this.

[0417] After acquiring the blood pressure values ​​C and D, the wearable device 100 calibrates the second target model based on the deviation between the blood pressure values ​​C and D.

[0418] Through this method, the wearable device 100 can prompt the user to change different postures to obtain multiple information to calibrate the second target model, and the user maintains each posture for a shorter time.

[0419] B. Non-first calibration of the second target model.

[0420] If the wearable device 100 stores a large amount of historical blood pressure information, the wearable device 100 can collect the third information using the first blood pressure measurement method and determine whether the user is in a stationary state based on the third information and the historical blood pressure information. If the third information differs slightly from the historical blood pressure information, it indicates that the user is in a stationary state, and the wearable device 100 can calibrate the second target model. If the third information differs significantly from the historical blood pressure information, it indicates that the user is not in a stationary state, and the wearable device 100 can also prompt the user to wait for a period of time before calibrating the second target model. In this way, the wearable device 100 only needs to collect the third information once, simplifying the calibration process.

[0421] In some embodiments, when a large amount of historical blood pressure information is stored in the wearable device 100, the wearable device 100 may also collect data multiple times using the first blood pressure measurement method, and determine whether the user is in a stationary state using the data collected multiple times using the first blood pressure measurement method.

[0422] The timing when the wearable device 100 is not calibrating the second target model for the first time may be similar to the timing when the wearable device 100 is calibrating the second target model for the first time, and this application will not go into details here.

[0423] In some embodiments, when the wearable device 100 is not calibrating the second target model for the first time, the wearable device 100 may prompt the user to select a calibration mode. The calibration mode may include a standard calibration mode and a simplified calibration mode. The standard calibration mode may refer to the wearable device 100 collecting data multiple times using the first blood pressure measurement method, and determining whether the user is in a stationary state based on the data collected multiple times using the first blood pressure measurement method. The simplified calibration mode may refer to the wearable device 100 collecting data once using the first blood pressure measurement method, such as the third information, and determining whether the user is in a stationary state based on the third information and historical blood pressure information.

[0424] The embodiment of the present application is described by taking as an example that the wearable device 100 collects the third information once using the first blood pressure measurement method when the second target model is not calibrated for the first time.

[0425] In one possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in Figure 8A, collects the third information through the first blood pressure measurement method, and when it is determined that the user is in a stationary state based on the third information and historical blood pressure information, the wearable device 100 prompts the user to maintain the posture shown in Figure 8B, collects the second information through the second blood pressure measurement method, and calibrates the second target model through the third information and the second information.

[0426] In other possible implementations, the wearable device 100 first prompts the user to maintain the posture shown in Figure 8B, collects the second information through the second blood pressure measurement method, then prompts the user to maintain the posture shown in Figure 8A, collects the third information through the first blood pressure measurement method, and then determines based on the third information and historical blood pressure information that the user is in a stationary state. The wearable device 100 then calibrates the second target model through the third information and the second information.

[0427] The wearable device 100 determines whether the user is in a stationary state based on the third information and the historical blood pressure information, which may include:

[0428] When the third information includes a blood pressure value, such as blood pressure value A, and the historical blood pressure information includes historical blood pressure values, the wearable device 100 needs to confirm whether the difference between the blood pressure value A in the third information and the historical blood pressure values ​​is less than a threshold value A. If the difference is less than the threshold value A, it indicates that the current user is in a stationary state. If the difference is greater than the third threshold value, it indicates that the current user is in a non-stationary state.

[0429] When the second information includes pressure data, such as pressure data A, and the historical blood pressure information includes historical pressure data, the wearable device 100 needs to confirm whether the pressure data A and the historical pressure data in the third information are less than a threshold value B. For example, the difference between the evaluation parameter extracted based on pressure data A and the evaluation parameter extracted based on pressure data B can be less than a threshold value. If the difference is less than threshold value B, it indicates that the current user is in a stationary state. If the difference is greater than threshold value B, it indicates that the current user is in a non-stationary state.

[0430] Threshold A and threshold B may be the same or different.

[0431] The principle of how the wearable device 100 calibrates the second target model based on the second information and the third information is similar to the principle of how the wearable device 100 calibrates the second target model for the first time, and this application will not go into details here.

[0432] In some embodiments, when it is determined that the user is in a non-stationary state based on the third information and historical blood pressure information, the wearable device 100 can also calibrate the second target model based on the collected data. The specific implementation is similar to the principle of the wearable device 100 calibrating the second target model for the first time when the user is in a non-stationary state, and this application will not go into details here.

[0433] (2) Calibrate the first target model of the third blood pressure measurement method.

[0434] A. Initial calibration of the first target model.

[0435] The first target model may be a model used to estimate blood pressure values ​​in the third blood pressure measurement method. The first target model's input is the fifth information, and its output is the blood pressure value. The fifth information may be collected by the third blood pressure measurement device. The fifth information may include, but is not limited to, the second heart rate data.

[0436] The implementation of the first calibration of the first target model and the first calibration of the second target model are similar, except that the user's posture is different in the first calibration of the first target model and the first calibration of the second target model.

[0437] In some embodiments, the wearable device 100 can calibrate the first target model using blood pressure values ​​and / or pressure data collected using the first blood pressure measurement method.

[0438] In one possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8A to obtain the third information. After obtaining the third information, the wearable device 100 prompts the user to maintain the posture shown in FIG8F to obtain the fifth information. After obtaining the fifth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8C to obtain the fourth information.

[0439] In another possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8F to obtain the fifth information. After obtaining the fifth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8A to obtain the third information. After obtaining the third information, the wearable device 100 prompts the user to maintain the posture shown in FIG8C to obtain the fourth information.

[0440] In another possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8A to obtain the third information. After obtaining the third information, the wearable device 100 prompts the user to maintain the posture shown in FIG8C to obtain the fourth information. After obtaining the fourth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8F to obtain the fifth information.

[0441] After obtaining the third information, the fourth information, and the fifth information, the wearable device 100 may calibrate the first target model based on the third information, the fourth information, and the fifth information. The specific implementation of the wearable device 100 calibrating the first target model based on the fifth information, the third information, and / or the fourth information is similar to the specific implementation of the wearable device 100 first calibrating the second target model, and is not further described in this application.

[0442] In some embodiments, when determining whether the user is in a stationary or non-stationary state based on motion data collected by the motion sensor, the wearable device 100 may also collect the third information or the fourth information once using the first blood pressure measurement method. The order in which the third information or the fourth information and the fifth information are obtained is not limited.

[0443] In other embodiments, the wearable device 100 may also calibrate the first target model using blood pressure values ​​collected using the second blood pressure measurement method.

[0444] In one possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8B to obtain sixth information. The sixth information may include, but is not limited to, any one or more of the following: heart rate data, electrocardiogram data, pressure data, and blood pressure values. After first obtaining the sixth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8F to obtain fifth information. After obtaining the fifth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8B to obtain seventh information. The seventh information may include, but is not limited to, any one or more of the following: heart rate data, electrocardiogram data, pressure data, and blood pressure values.

[0445] In another possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8F to obtain the fifth information. After obtaining the fifth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8B to obtain the sixth information. After obtaining the sixth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8B to obtain the seventh information.

[0446] In another possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8B to obtain the sixth information. After obtaining the sixth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8B to obtain the seventh information. After obtaining the seventh information, the wearable device 100 prompts the user to maintain the posture shown in FIG8F to obtain the fifth information.

[0447] If the difference between the sixth information and the seventh information is less than the threshold, it indicates that the user is in a stationary state, and the wearable device 100 can calibrate the first target model. If the difference between the sixth information and the seventh information is greater than the threshold, it indicates that the user is in a non-stationary state, and the wearable device 100 can prompt the user to calibrate the first target model later when the user is in a stationary state.

[0448] The principle of the wearable device 100 calibrating the first target model based on the sixth information, the seventh information, and the fifth information is similar to the principle of the wearable device 100 calibrating the second target model for the first time, and is not described in detail in this application.

[0449] In some embodiments, when determining whether the user is in a stationary or non-stationary state based on motion data collected by the motion sensor, the wearable device 100 may also collect the sixth or seventh information once using the second blood pressure measurement method. The order in which the sixth or seventh information is obtained after the fifth information is not limited.

[0450] B. Non-first calibration of the first target model.

[0451] The implementation of the non-first-time calibration first target model and the first-time calibration first target model is similar, except that the user's posture is different in the non-first-time calibration first target model and the non-first-time calibration first target model.

[0452] In some embodiments, the wearable device 100 can calibrate the first target model using blood pressure values ​​and / or pressure data collected using the first blood pressure measurement method.

[0453] In one possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in Figure 8A, collects the third information through the first blood pressure measurement method, and when it is determined that the user is in a stationary state based on the third information and historical blood pressure information, the wearable device 100 prompts the user to maintain the posture shown in Figure 8F, collects the fifth information through the third blood pressure measurement method, and calibrates the first target model through the third information and the fifth information.

[0454] In another possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8F and collects the fifth information using the third blood pressure measurement method. Then, the wearable device 100 prompts the user to maintain the posture shown in FIG8A and collects the third information using the first blood pressure measurement method. When the wearable device 100 determines that the user is stationary based on the third information and historical blood pressure information, the wearable device 100 further calibrates the first target model using the third and fifth information.

[0455] The principle of how the wearable device 100 calibrates the first target model based on the third information and the fifth information is similar to the principle of how the wearable device 100 calibrates the second target model for the first time, and this application will not elaborate on this.

[0456] In some embodiments, when it is determined that the user is in a non-stationary state based on the third information and historical blood pressure information, the wearable device 100 can also calibrate the second target model based on the collected data. The specific implementation is similar to the principle of the wearable device 100 first calibrating the first target model when the user is in a non-stationary state, and this application will not go into details here.

[0457] In other embodiments, the wearable device 100 may also calibrate the first target model using blood pressure values ​​collected using the second blood pressure measurement method.

[0458] In one possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8B to obtain the sixth information. When the wearable device 100 determines that the user is in a stationary state based on the sixth information and historical blood pressure values, the wearable device 100 then prompts the user to maintain the posture shown in FIG8F to obtain the fifth information, and calibrates the first target model using the sixth information and the fifth information.

[0459] In another possible implementation, the wearable device 100 first prompts the user to maintain the posture shown in FIG8F to obtain the fifth information. After obtaining the fifth information, the wearable device 100 prompts the user to maintain the posture shown in FIG8B to obtain the sixth information. When the wearable device 100 determines that the user is in a resting state based on the sixth information and historical blood pressure values, the wearable device 100 then calibrates the first target model using the sixth information and the fifth information.

[0460] The principle of the wearable device 100 calibrating the first target model based on the sixth information and the fifth information is similar to the principle of the wearable device 100 calibrating the second target model for the first time, and is not described in detail in this application.

[0461] 2. Sense blood pressure measurement scenario

[0462] (1) Measure blood pressure based on the first blood pressure measurement method.

[0463] When a preset time, for example, a first time, is reached, the wearable device 100 may prompt the user to start measuring blood pressure using a first blood pressure measurement method.

[0464] Exemplarily, the wearable device 100 may display the prompt information shown in Figure 8G, which may include "Please align your wrist with your heart and start measuring blood pressure." This prompt information is used to prompt the user to adopt the correct posture to measure blood pressure using the first blood pressure measurement method, which can improve the accuracy of measuring blood pressure using the first blood pressure measurement method.

[0465] In some embodiments, before the wearable device 100 obtains the blood pressure value based on the first blood pressure measurement method, the wearable device 100 can obtain the pulse wave signal under constant air pressure and the physiological data under constant air pressure, and then determine the blood pressure risk based on the pulse wave signal under constant air pressure and the physiological data under constant air pressure, and then determine the blood pressure value based on the blood pressure risk and the pressure data, which can improve the accuracy of measuring blood pressure using the first blood pressure measurement method.

[0466] FIG8H shows a flow chart of a method in which the wearable device 100 obtains a blood pressure value using a first blood pressure measurement method.

[0467] S801: The wearable device 100 obtains a pulse wave signal at a first constant air pressure value.

[0468] When measuring blood pressure using the first blood pressure measurement method, the wearable device 100 may measure blood pressure using an upward breathing method or a downward breathing method.

[0469] For the upper air method, the wearable device 100 needs to inflate the airbag. During the process of linear increase in the air pressure in the airbag, pressure data is obtained through the air pressure sensor. The pressure data may include the airbag pressure and the pulse wave signal corresponding to the airbag pressure. The wearable device 100 can obtain the blood pressure value based on the pressure data.

[0470] For the downward air method, the wearable device 100 needs to inflate the airbag. After the air pressure in the airbag reaches a certain value, the airbag begins to deflate. During the process of linearly decreasing air pressure in the airbag, the wearable device 100 can obtain pressure data through the air pressure sensor and obtain blood pressure value based on the pressure data.

[0471] During the linear increase or decrease of the air pressure within the airbag, the wearable device 100 can maintain the air pressure within the airbag at a first constant pressure value, which can be a preset value. When the air pressure within the airbag is fixed at the first constant pressure value, the wearable device 100 can obtain a pulse wave signal at the first constant pressure value through the air pressure sensor.

[0472] Optionally, multiple constant air pressure values ​​may be set, and pulse wave signals at the multiple constant air pressure values ​​may be obtained respectively.

[0473] S802: The wearable device 100 obtains first physiological data at a first constant air pressure value.

[0474] When the air pressure in the airbag is stabilized at the first constant air pressure value, the wearable device 100 can obtain the first physiological data.

[0475] Optionally, the first physiological data may be second heart rate data collected by a second heart rate sensor. The first physiological data is not limited to the second heart rate data, and may also include other information.

[0476] Optionally, the second physiological data may also be the first heart rate data collected by the first heart rate sensor. The first physiological data is not limited to the first heart rate data, and may also include other information.

[0477] S803: The wearable device 100 determines a first blood pressure risk based on the pulse wave signal at the first constant air pressure value and the first physiological data.

[0478] After acquiring the pulse wave signal and the first physiological data at the first constant air pressure value, the wearable device 100 may determine the first blood pressure risk based on the pulse wave signal and the first physiological data at the first constant air pressure value.

[0479] The first blood pressure risk includes any of the following: high blood pressure risk, no risk, and low blood pressure risk.

[0480] S804: The wearable device 100 determines a blood pressure value based on the first blood pressure risk and the first pressure data, where the blood pressure value is related to the first blood pressure risk.

[0481] After acquiring the pulse wave signal and first physiological data at the first constant air pressure value, the air pressure within the airbag may continue to rise or fall linearly. After the air pressure within the airbag stops rising or falling, the wearable device 100 may acquire first pressure data during the inflation and deflation processes of the airbag. The first pressure data may be used to determine the user's blood pressure.

[0482] Optionally, the wearable device 100 is provided with multiple models, such as model A, model B, and model C, which can obtain blood pressure values ​​based on pressure data. For example, model A can be a hypertension model, model B can be a normal blood pressure model, and model C can be a hypotension model.

[0483] The wearable device 100 may determine, based on the first blood pressure risk, which model to use to determine the blood pressure value.

[0484] When the first blood pressure risk is a high blood pressure risk, for example, the user's blood pressure is high, the wearable device 100 can input the first pressure data into the model A, and the model A outputs a blood pressure value, which is high.

[0485] When the first blood pressure risk is no risk, for example, the user's blood pressure is within a normal range, the wearable device 100 can input the first pressure data into model B, and model B outputs a blood pressure value that is within a normal blood pressure range.

[0486] When the first blood pressure risk is a low blood pressure risk, for example, the user's blood pressure is low, the wearable device 100 can input the first pressure data into the model C, and the model C outputs a blood pressure value, which is low.

[0487] In this way, the wearable device 100 can determine the user's blood pressure value through the first pressure data based on the model corresponding to the blood pressure risk, thereby improving the accuracy of measuring blood pressure using the first blood pressure measurement method.

[0488] (2) Measure blood pressure based on the second blood pressure measurement method.

[0489] When a preset time, such as a second time, is reached, the wearable device 100 may prompt the user to start measuring blood pressure using the second blood pressure measurement method.

[0490] For example, the wearable device 100 may display the prompt information shown in FIG8I , which may include “Please press the side button with one finger to start measuring blood pressure.” This prompt information is used to prompt the user to adopt the correct posture to measure blood pressure using the second blood pressure measurement method, which may improve the accuracy of measuring blood pressure using the second blood pressure measurement method.

[0491] (3) Measure blood pressure based on the third blood pressure measurement method.

[0492] When a preset time, such as a third time, is reached, the wearable device 100 may prompt the user to start measuring blood pressure using a third blood pressure measurement method.

[0493] Exemplarily, the wearable device 100 may display the prompt information shown in Figure 8J, which may include "Please keep still and start measuring blood pressure". The prompt information is used to prompt the user to adopt the correct posture to measure blood pressure through the third blood pressure measurement method, which can improve the accuracy of measuring blood pressure by the third blood pressure measurement method.

[0494] (4) Measure blood pressure based on the first blood pressure measurement method and the second blood pressure measurement method.

[0495] When a preset time, such as a fourth time, is reached, the wearable device 100 may prompt the user to start measuring blood pressure using the first blood pressure measurement method and the second blood pressure measurement method.

[0496] In one possible implementation, the wearable device 100 may first display the prompt information shown in FIG8G , prompting the user to adopt the correct posture to measure blood pressure using the first blood pressure measurement method, for example, to obtain a blood pressure value H. After obtaining the blood pressure value H, the wearable device 100 may then display the prompt information shown in FIG8I , prompting the user to adopt the correct posture to measure blood pressure using the second blood pressure measurement method, for example, to obtain a blood pressure value I.

[0497] In other possible implementations, the wearable device 100 may first display the prompt message shown in FIG8I , prompting the user to adopt the correct posture to measure blood pressure using the second blood pressure measurement method. After obtaining the blood pressure value I, the wearable device 100 may then display the prompt message shown in FIG8G , prompting the user to adopt the correct posture to measure blood pressure using the first blood pressure measurement method, for example, to obtain the blood pressure value H.

[0498] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value H and the blood pressure value I. For example, the wearable device 100 can use the average of the blood pressure value H and the blood pressure value I as the blood pressure value of the current user.

[0499] (5) Measure blood pressure based on the first blood pressure measurement method and the third blood pressure measurement method.

[0500] When a preset time is reached, for example, the fifth time, the wearable device 100 may prompt the user to start measuring blood pressure using the first blood pressure measurement method and the third blood pressure measurement method.

[0501] In one possible implementation, the wearable device 100 may first display the prompt information shown in FIG8G , prompting the user to adopt the correct posture to measure blood pressure using the first blood pressure measurement method, for example, to obtain a blood pressure value H. After obtaining the blood pressure value H, the wearable device 100 may then display the prompt information shown in FIG8J , prompting the user to adopt the correct posture to measure blood pressure using the third blood pressure measurement method, for example, to obtain a blood pressure value J.

[0502] In another possible implementation, the wearable device 100 may first display the prompt message shown in FIG8J , prompting the user to adopt the correct posture to measure blood pressure using the third blood pressure measurement method. After obtaining the blood pressure value J, the wearable device 100 may then display the prompt message shown in FIG8G , prompting the user to adopt the correct posture to measure blood pressure using the first blood pressure measurement method, for example, to obtain the blood pressure value H.

[0503] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value H and the blood pressure value J. For example, the wearable device 100 can use the average of the blood pressure value H and the blood pressure value J as the blood pressure value of the current user.

[0504] (6) Measure blood pressure based on the second blood pressure measurement method and the third blood pressure measurement method.

[0505] When a preset time, for example, the sixth time, is reached, the wearable device 100 may prompt the user to start measuring blood pressure using the second blood pressure measurement method and the third blood pressure measurement method.

[0506] In one possible implementation, the wearable device 100 may first display the prompt information shown in FIG8I , prompting the user to adopt the correct posture to measure blood pressure using the second blood pressure measurement method, for example, to obtain blood pressure value I. After obtaining blood pressure value I, the wearable device 100 may then display the prompt information shown in FIG8J , prompting the user to adopt the correct posture to measure blood pressure using the third blood pressure measurement method, for example, to obtain blood pressure value J.

[0507] In another possible implementation, the wearable device 100 may first display the prompt message shown in FIG8J , prompting the user to adopt the correct posture to measure blood pressure using the third blood pressure measurement method. After obtaining blood pressure value J, the wearable device 100 may then display the prompt message shown in FIG8I , prompting the user to adopt the correct posture to measure blood pressure using the second blood pressure measurement method, for example, to obtain blood pressure value I.

[0508] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value I and the blood pressure value J. For example, the wearable device 100 can use the average of the blood pressure value I and the blood pressure value J as the blood pressure value of the current user.

[0509] (7) Measure blood pressure based on the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0510] When a preset time is reached, for example, the seventh time, the wearable device 100 may prompt the user to start measuring blood pressure using the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0511] The wearable device 100 can display the prompt information shown in Figure 8G, obtaining blood pressure value H, display the prompt information shown in Figure 8I, obtaining blood pressure value I, and display the prompt information shown in Figure 8J, obtaining blood pressure value J. The display order of the above three prompt information can be arbitrary, and this application does not limit this.

[0512] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value H, the blood pressure value I, and the blood pressure value J. For example, the wearable device 100 can use the average of the blood pressure value H, the blood pressure value I, and the blood pressure value J as the blood pressure value of the current user.

[0513] 2. No-sense Scenario

[0514] The non-sensing scenario may include a non-sensing calibration scenario and a non-sensing measurement scenario.

[0515] (1) Calibrate the second target model of the second blood pressure measurement method.

[0516] A. First calibration of the second target model.

[0517] The principle of calibrating the second target model for the first time in the non-sensing scene is similar to the principle of calibrating the second target model for the first time in the sensing scene. For details, please refer to the specific description of the first calibration of the second target model in the sensing scene. This application will not go into details here.

[0518] The difference is that in the senseless scenario, when calibrating the second target model for the first time, the wearable device 100 only needs to prompt the user to maintain a posture to complete the model calibration process. In this way, the user can complete the model calibration process without changing posture, saving user operations.

[0519] For example, when starting to calibrate the second target model, the wearable device 100 may prompt the user to maintain the posture shown in FIG9A , that is, to keep the wrist wearing the wearable device 100 flush with the heart and press the side button with one finger.

[0520] When the user maintains the posture shown in FIG9A , the wearable device 100 collects the third information using the first blood pressure measurement method, the second information using the second blood pressure measurement method, and the fourth information using the first blood pressure measurement method. The order in which the third information, the second information, and the fourth information are acquired can be arbitrary and is not limited.

[0521] In this way, the user can obtain multiple pieces of information through one posture, and the user is unaware of the order in which the multiple pieces of information are obtained, thus achieving seamless calibration of the second target model.

[0522] After obtaining the second information, the third information, and the fourth information, how the wearable device 100 calibrates the second target model can be referred to the detailed introduction of the first calibration of the second target model in the non-sensing scenario, which will not be repeated in this application.

[0523] In some embodiments, when determining whether the user is in a stationary or non-stationary state based on motion data collected by the motion sensor, the wearable device 100 may also collect third information or fourth information once using the first blood pressure measurement method. The order in which the third information or fourth information is obtained after the second information is not limited.

[0524] B. Non-first calibration of the second target model.

[0525] The principle of calibrating the second target model in a non-sensing scenario is similar to the principle of calibrating the second target model for the first time in a non-sensing scenario. The difference is that in a non-sensing scenario, the wearable device 100 needs to collect data once using the first blood pressure measurement method. For example, the wearable device 100 needs to collect third information using the first blood pressure measurement method to calibrate the second target model. For details, please refer to the specific description of the first calibration of the second target model in a non-sensing scenario, and this application will not repeat it here.

[0526] (2) Calibrate the first target model of the third blood pressure measurement method.

[0527] A. Initial calibration of the first target model.

[0528] In some embodiments, the wearable device 100 can calibrate the first target model using blood pressure values ​​and / or pressure data collected using the first blood pressure measurement method.

[0529] In the non-sensing scenario, the principle of calibrating the first target model for the first time based on the blood pressure values ​​and / or pressure data collected by the first blood pressure measurement method is similar to the principle of calibrating the first target model for the first time based on the blood pressure values ​​and / or pressure data collected by the first blood pressure measurement method in the sensing scenario. For details, please refer to the specific description of the first calibration of the first target model in the sensing scenario, and this application will not repeat it here.

[0530] The difference is that in the senseless scenario, when calibrating the first target model for the first time, the wearable device 100 only needs to prompt the user to maintain a posture to complete the model calibration process. In this way, the user can complete the model calibration process without changing posture, saving user operations.

[0531] For example, when starting to calibrate the first target model, the wearable device 100 may prompt the user to maintain the posture shown in FIG9B , that is, to align the wrist wearing the wearable device 100 with the heart and remain still.

[0532] When the user maintains the posture shown in FIG9B , the wearable device 100 can respectively collect the third information using the first blood pressure measurement method, the fifth information using the third blood pressure measurement method, and the fourth information using the first blood pressure measurement method. The order in which the third information, the fifth information, and the fourth information are obtained can be arbitrary and is not limited.

[0533] In this way, the user can obtain multiple pieces of information through one posture, and the user is unaware of the order in which the multiple pieces of information are obtained, thus achieving seamless calibration of the second target model.

[0534] After obtaining the fifth information, the third information, and the fourth information, how the wearable device 100 calibrates the first target model can be referred to the detailed introduction of the first calibration of the first target model in the non-sensing scenario, which will not be repeated in this application.

[0535] In some embodiments, when determining whether the user is in a stationary or non-stationary state based on motion data collected by the motion sensor, the wearable device 100 may also collect the third information or the fourth information once using the first blood pressure measurement method. The order in which the third information or the fourth information and the fifth information are obtained is not limited.

[0536] In other embodiments, the wearable device 100 may calibrate the first target model using blood pressure values ​​and / or pressure data collected using the second blood pressure measurement method.

[0537] In the non-sensing scenario, the principle of calibrating the first target model for the first time based on the blood pressure value collected by the second blood pressure measurement method is similar to the principle of calibrating the first target model for the first time based on the blood pressure value collected by the second blood pressure measurement method in the sensing scenario. For details, please refer to the specific description of the first calibration of the first target model in the sensing scenario, and this application will not repeat it here.

[0538] The difference is that in the senseless scenario, when calibrating the first target model for the first time, the wearable device 100 only needs to prompt the user to maintain a posture to complete the model calibration process. In this way, the user can complete the model calibration process without changing posture, saving user operations.

[0539] For example, when starting to calibrate the first target model, the wearable device 100 may prompt the user to maintain the posture shown in FIG9C , that is, press the side button with a single finger and remain still.

[0540] When the user maintains the posture shown in FIG9C , the wearable device 100 can collect the sixth information using the second blood pressure measurement method, the fifth information using the third blood pressure measurement method, and the seventh information using the second blood pressure measurement method. The order in which the sixth information, the fifth information, and the seventh information are obtained can be arbitrary and is not limited.

[0541] In this way, the user can obtain multiple pieces of information through one posture, and the user is unaware of the order in which the multiple pieces of information are obtained, thus achieving seamless calibration of the second target model.

[0542] After obtaining the fifth information, the sixth information, and the seventh information, how the wearable device 100 calibrates the first target model can be referred to the detailed introduction of the first calibration of the first target model in the non-sensing scenario, which will not be repeated in this application.

[0543] In some embodiments, when determining whether the user is in a stationary or non-stationary state based on motion data collected by the motion sensor, the wearable device 100 may also collect the sixth or seventh information once using the second blood pressure measurement method. The order in which the sixth or seventh information is obtained after the fifth information is not limited.

[0544] In other implementations, the wearable device 100 may also automatically calibrate the first target model using the third information and the fourth information collected by the first blood pressure measurement method when calibrating the second target model for the first time.

[0545] B. Non-first calibration of the first target model.

[0546] The principle of non-first calibration of the first target model in the non-sensing scenario is similar to the principle of first calibration of the first target model in the non-sensing scenario. The difference is that in the non-sensing scenario, the first target model is not calibrated for the first time. The wearable device 100 only needs to collect data once through the first blood pressure measurement method or the second blood pressure measurement method. For example, the wearable device 100 only needs to collect the third information through the first blood pressure measurement method or only needs to collect the sixth information through the second blood pressure measurement method to calibrate the first target model. Specifically, please refer to the specific description of the first calibration of the first target model in the non-sensing scenario, and this application will not repeat it here.

[0547] In other implementations, the wearable device 100 may also automatically calibrate the first target model based on the third information collected by the first blood pressure measurement method when measuring the user's blood pressure by the first blood pressure measurement method.

[0548] In other implementations, the wearable device 100 may also automatically calibrate the first target model based on the sixth information obtained by the second blood pressure measurement method when measuring the user's blood pressure by the second blood pressure measurement method.

[0549] 2. Non-contact blood pressure measurement scenario

[0550] (1) Measure blood pressure based on the first blood pressure measurement method.

[0551] When a preset time is reached, for example, the first time, the wearable device 100 can measure blood pressure using the first blood pressure measurement method, for example, displaying the prompt information shown in Figure 8G, prompting the user to measure blood pressure using the third blood pressure measurement method.

[0552] Optionally, the wearable device 100 may automatically start measuring blood pressure using the first blood pressure measurement method without prompting the user.

[0553] (2) Measure blood pressure based on the second blood pressure measurement method.

[0554] When a preset time, such as the second time, is reached, the wearable device 100 can measure blood pressure using the second blood pressure measurement method, for example, displaying the prompt information shown in Figure 8I, prompting the user to measure blood pressure using the third blood pressure measurement method.

[0555] Optionally, the wearable device 100 may automatically start measuring blood pressure using the second blood pressure measurement method without prompting the user.

[0556] (3) Measure blood pressure based on the third blood pressure measurement method.

[0557] When a preset time, such as a third time, is reached, the wearable device 100 may measure blood pressure using a third blood pressure measurement method, for example, by displaying the prompt information shown in FIG8J , prompting the user to measure blood pressure using the third blood pressure measurement method.

[0558] Optionally, the wearable device 100 may automatically start measuring blood pressure using the third blood pressure measurement method without prompting the user.

[0559] (4) Measure blood pressure based on the first blood pressure measurement method and the second blood pressure measurement method.

[0560] When a preset time, such as a fourth time, is reached, the wearable device 100 can measure blood pressure using the first blood pressure measurement method and the second blood pressure measurement method.

[0561] For example, the wearable device 100 may display the prompt information shown in FIG9D , which prompts the user to place the wrist of the wearable device 100 flush with the heart and press the side button with one finger to start measuring blood pressure.

[0562] When the user maintains the posture shown in FIG9D , the wearable device 100 can obtain a blood pressure value H using the first blood pressure measurement method and a blood pressure value I using the second blood pressure measurement method. The order of obtaining the blood pressure value H and obtaining the blood pressure value I is not limited. In this way, the user can obtain the user's blood pressure value using two blood pressure measurement methods while maintaining the same posture.

[0563] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value H and the blood pressure value I. For example, the wearable device 100 can use the average of the blood pressure value H and the blood pressure value I as the blood pressure value of the current user.

[0564] (5) Measure blood pressure based on the first blood pressure measurement method and the third blood pressure measurement method.

[0565] When a preset time, such as a fourth time, is reached, the wearable device 100 can measure blood pressure using the first blood pressure measurement method and the second blood pressure measurement method.

[0566] For example, the wearable device 100 may display the prompt information shown in FIG9E , which prompts the user to place the wrist wearing the wearable device 100 flush with the heart and remain still to start measuring blood pressure.

[0567] When the user maintains the posture shown in FIG9E , the wearable device 100 can obtain a blood pressure value H using the first blood pressure measurement method and a blood pressure value J using the third blood pressure measurement method. The order of obtaining the blood pressure value H and obtaining the blood pressure value J is not limited. In this way, the user can obtain the user's blood pressure value using two blood pressure measurement methods while maintaining the same posture.

[0568] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value H and the blood pressure value J. For example, the wearable device 100 can use the average of the blood pressure value H and the blood pressure value J as the blood pressure value of the current user.

[0569] (6) Measure blood pressure based on the second blood pressure measurement method and the third blood pressure measurement method.

[0570] When a preset time, for example, a sixth time, is reached, the wearable device 100 can measure blood pressure using the second blood pressure measurement method and the third blood pressure measurement method.

[0571] For example, the wearable device 100 may display the prompt information shown in FIG9F , that is, press the side button with one finger and keep still to start side blood pressure measurement.

[0572] When the user maintains the posture shown in FIG9F , the wearable device 100 can obtain a blood pressure value I using the second blood pressure measurement method and a blood pressure value J using the third blood pressure measurement method. The order of obtaining the blood pressure value I and obtaining the blood pressure value J is not limited. In this way, the user can obtain the user's blood pressure value using two blood pressure measurement methods while maintaining the same posture.

[0573] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value I and the blood pressure value J. For example, the wearable device 100 can use the average of the blood pressure value I and the blood pressure value J as the blood pressure value of the current user.

[0574] (7) Measure blood pressure based on the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0575] When a preset time, for example, the seventh time, is reached, the wearable device 100 can measure the blood pressure using the first blood pressure measurement method, the second blood pressure measurement method, and the third blood pressure measurement method.

[0576] For example, the wearable device 100 may display the prompt information shown in FIG9G , which prompts the user to place the wrist of the wearable device 100 flush with the heart, press the side button with one finger, and remain still to start measuring blood pressure.

[0577] When the user maintains the posture shown in FIG9G , the wearable device 100 can obtain a blood pressure value H using the first blood pressure measurement method, obtain a blood pressure value I using the second blood pressure measurement method, and obtain a blood pressure value J using the third blood pressure measurement method. The order of obtaining the blood pressure value H, obtaining the blood pressure value I, and obtaining the blood pressure value J is not limited. In this way, the user can obtain the user's blood pressure value using three blood pressure measurement methods while maintaining the same posture.

[0578] The wearable device 100 can obtain the blood pressure value of the current user based on the blood pressure value H, the blood pressure value I, and the blood pressure value J. For example, the wearable device 100 can use the average of the blood pressure value H, the blood pressure value I, and the blood pressure value J as the blood pressure value of the current user.

[0579] It should be noted that, when calibrating the first target model or the second target, the above embodiment is described by prompting the user to calibrate as an example. In other embodiments, the wearable device 100 may also internally calibrate the first target model or the second target without prompting the user to calibrate.

[0580] The above are only some of the embodiments and implementations of this application. The scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0581] It is understood that the various user interfaces described in the embodiments of this application are merely exemplary interfaces and do not limit the scope of this application. In other embodiments, the user interface may adopt a different interface layout, include more or fewer controls, and add or remove other functional options. As long as they are based on the same inventive concept provided by this application, they are all within the scope of protection of this application.

[0582] It should be noted that, without causing any contradiction or conflict, any feature in any embodiment of the present application, or any part of any feature, can be combined, and the combined technical solution is also within the scope of the embodiments of the present application.

[0583] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A blood pressure measurement method, characterized in that: The wearable device includes a first heart rate sensor and a second heart rate sensor. The wearable device also includes a watch body, the watch body includes a wearing surface and a display surface, a first button is provided on a side of the watch body, the first heart rate sensor is provided on the first button, and the second heart rate sensor is provided on the wearing surface. The method includes: The wearable device obtains first information, where the first information includes one or more of the following: user information, environmental information, and motion data; The wearable device determines a first blood pressure measurement scheme based on the first information, where the first blood pressure measurement scheme includes at least one of the following blood pressure measurement methods: a second blood pressure measurement method for measuring blood pressure based on first heart rate data collected by the first heart rate sensor, and a third blood pressure measurement method for measuring blood pressure based on second heart rate data collected by the second heart rate sensor.

2. The method according to claim 1, characterized in that The first blood pressure measurement plan also includes any one or more of the following: the number of times the second blood pressure measurement method is used, the number of times the third blood pressure measurement method is used, the measurement time of the second blood pressure measurement method, and the measurement time of the third blood pressure measurement method.

3. The method according to claim 1 or 2, characterized in that The user information includes one or more of the following: blood pressure, heart rate, body temperature, pulse, respiratory rate, blood sugar, smoking history, drinking history, medical history, medication history, living habits, gender, age, height, weight; The environmental information includes any one or more of the following: climate, temperature, altitude, season, and weather.

4. The method according to any one of claims 1 to 3, characterized in that After the wearable device determines the first blood pressure measurement scheme based on the first information, the method further includes: The wearable device prompts the user to view the content of the first blood pressure measurement plan.

5. The method according to any one of claims 1 to 4, characterized in that After the wearable device determines the first blood pressure measurement scheme based on the first information, the method further includes: The wearable device measures and obtains a first blood pressure value; The wearable device obtains a second blood pressure measurement solution based on the first blood pressure value.

6. The method according to claim 5, characterized in that If the first blood pressure value is too high or too low, the second blood pressure measurement method in the second blood pressure measurement scheme is executed more times than the second blood pressure measurement method in the first blood pressure measurement scheme.

7. The method according to claim 5 or 6, characterized in that If the first blood pressure value is normal, the second blood pressure measurement method in the second blood pressure measurement scheme is executed less than or equal to the number of times the second blood pressure measurement method in the first blood pressure measurement scheme is executed.

8. The method according to any one of claims 1 to 7, characterized in that After the wearable device determines a blood pressure measurement plan based on the first information, the method further includes: The wearable device measures blood pressure based on the first blood pressure measurement scheme to obtain multiple blood pressure values; The wearable device determines a third blood pressure measurement scheme based on the multiple blood pressure values, where the third blood pressure measurement scheme is different from the first blood pressure measurement scheme.

9. The method according to any one of claims 1 to 8, characterized in that After the wearable device determines a blood pressure measurement solution based on the first information, the method further includes: The wearable device obtains a third blood pressure value based on the second blood pressure measurement method; The wearable device collects the second heart rate data based on the second heart rate sensor; The wearable device updates the first target model based on the third blood pressure value and the second heart rate data. The fifth blood pressure value obtained by the updated first target model based on the second heart rate data is closer to the third blood pressure value than the sixth blood pressure value obtained by the first target model based on the second heart rate data before the update.

10. The method according to any one of claims 1 to 9, characterized in that The wearable device is a watch or a bracelet.

11. The method according to any one of claims 1 to 10, characterized in that The wearable device further includes an electrocardiogram sensor and a pressure sensor. The electrocardiogram sensor includes a plurality of electrodes, and the plurality of electrodes are arranged on the first button and the wearing surface. The pressure sensor is arranged on the first button.

12. The method according to claim 11, characterized in that Measuring blood pressure using the second blood pressure measurement method includes: A first pressure value of the first button is acquired through the pressure sensor.

13. The method according to claim 12, characterized in that Measuring blood pressure using the second blood pressure measurement method also includes: The user is prompted to increase or decrease the pressing force on the first button according to the first pressure value.

14. The method according to claim 13, characterized in that Prompting the user to increase or decrease the pressing force on the first button according to the first pressure value specifically includes: When detecting that the first pressure value is greater than a first threshold, prompting the user to reduce the pressing force of the heart rate sensor; When it is detected that the first pressure value is less than a second threshold, the user is prompted to increase the pressing force of the heart rate sensor.

15. The method according to claim 14, characterized in that Measuring blood pressure using the second blood pressure measurement method also includes: A pressure indication bar is displayed, where the pressure indication bar is used to indicate the pressure value of the first button acquired by the pressure sensor.

16. The method according to any one of claims 11 to 15, characterized in that Measuring blood pressure by the second blood pressure measurement method includes: A second blood pressure value is obtained according to the first pressure value, the first heart rate data, and the electrocardiogram data collected by the electrocardiogram sensor.

17. The method according to claim 16, characterized in that The first heart rate data and the electrocardiogram data are the heart rate data collected by the first heart rate sensor and the electrocardiogram data collected by the electrocardiogram sensor when the pressure value of the first button meets the preset pressure range.

18. The method according to claim 17, characterized in that The preset pressure range is between 40gF and 70gF.

19. A wearable device, characterized in that: The wearable device includes a memory and a processor; wherein the memory and the processor are coupled, and the memory is used to store a computer program. When the processor executes and calls the computer program, the wearable device executes the method according to any one of claims 1 to 18.

20. A computer-readable storage medium comprising instructions, characterized in that: When the instruction is executed on the wearable device, the wearable device executes the method according to any one of claims 1 to 18.

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