CN116919367A - Blood pressure measurement method and device - Google Patents

Abstract

This application provides a blood pressure measurement method and device. The method includes: obtaining the user's pressure oscillation wave; detecting the suppression starting point based on the obtained pressure oscillation wave. When suppressing the starting point, the pressure corresponding to the pressure oscillation wave obtained does not reach the average value. Arterial pressure; when the suppression starting point is detected, the user is prompted to hold his breath; when the suppression end point is detected, the user is prompted to breathe normally; the moment when the suppression end point is detected is after the pressure corresponding to the pressure shock wave reaches the mean arterial pressure; based on suppression The pressure oscillation wave from the starting point to the end point of inhibition is used to determine the mean arterial pressure. Implementing the embodiments of the present application can improve the accuracy of blood pressure measurement.

Description

Blood pressure measurement method and device

Technical field

The embodiments of the present application relate to terminal technology, and in particular, to a blood pressure measurement method and device.

Background technique

Blood pressure is an important physiological parameter of the human body, which can reflect the functional status of the human heart and blood vessels. Therefore, it can be used as a basis for clinical diagnosis of diseases and health guidance.

Currently, blood pressure measurement methods mainly include the Korotkoff sound method, the oscillometric method, and the pulse wave propagation velocity (pulse translation time, PTT) method. Among them, the oscillometric method is a technology widely used in various blood pressure monitors on the market. Its principle is that when the cuff is inflated, the air pressure sensor in the cuff collects the pressure shock wave in the inflated cuff. When the pressure in the cuff The amplitude of the pressure oscillation wave reaches its maximum when the mean arterial pressure is reached. The arterial blood pressure value of the human body can be obtained by using a specific calculation method for the pressure oscillation wave.

However, when measuring blood pressure through the oscillometric method, breathing will interfere with the pressure oscillation wave, causing deviations in blood pressure measurement and even failure in blood pressure measurement. Since the interference of respiration on the signal presents quasi-sinusoidal fluctuations and is additive to the signal, if the peak of the respiratory wave is superimposed on the pressure oscillation wave, it may cause the pressure oscillation wave peak shift and amplitude change distortion, resulting in feature extraction deviation or even feature extraction failure. .

How to improve the accuracy of blood pressure measurement is the current and future research direction.

Contents of the invention

This application provides a blood pressure measurement method and device. The method can prompt the user to hold his breath before and after obtaining the pressure shock wave corresponding to the mean arterial pressure, so as to obtain the pressure shock wave without respiratory interference, so as to obtain the user's information based on the pressure shock wave. blood pressure value, this method can improve the accuracy of blood pressure measurement.

In a first aspect, embodiments of the present application provide a blood pressure measurement method, which method includes:

Get the user's pressure shock wave;

The suppression starting point is detected based on the obtained pressure oscillation wave, and the pressure corresponding to the pressure oscillation wave obtained at the suppression starting point does not reach the mean arterial pressure;

When the inhibition starting point is detected, the user is prompted to hold their breath;

When the suppression end point is detected, the user is prompted to breathe normally; the moment when the suppression end point is detected is after the pressure corresponding to the pressure shock wave reaches the mean arterial pressure;

The mean arterial pressure is determined based on the pressure shock wave from the suppression start point to the suppression end point.

Implementing the embodiments of this application, the electronic device can first detect the suppression starting point in the process of acquiring the pressure shock wave, and prompt the user to hold his breath when the suppression starting point is detected; then detect the suppression end point, and prompt the user when the suppression end point is detected. Breathe normally. Since the suppression start point and the suppression end point are located before and after the mean arterial pressure, the user holds his breath at the suppression start point and the suppression end point to avoid obtaining the pressure shock wave corresponding to the mean arterial pressure from being interfered by breathing. Therefore, the electronic device can obtain accurate The pressure shock wave corresponding to the mean arterial pressure, and then, the electronic device can obtain the accurate mean arterial pressure based on the pressure shock wave from the suppression starting point to the suppression end point. It can be understood that detecting the starting point of suppression is to determine the moment when the user is prompted to hold his breath, and detecting the end point of suppression is determining the moment when the user is prompted to breathe normally.

It should be noted that the above-mentioned electronic device can be a blood pressure measuring device, such as a desktop blood pressure meter, a blood pressure measuring watch, etc., and the blood pressure measuring device can use its own structure, such as an air bag, an air pump, a pressure sensor, etc., to collect the user's pressure shock wave ; The above-mentioned electronic devices can be terminal devices such as mobile phones, tablets, and laptops, and the user's pressure shock waves are obtained through devices that can collect pressure shock waves; The embodiments of this application do not place any restrictions on the specific types of electronic devices.

It can be seen that this method detects the suppression starting point and suppression end point before and after the mean arterial pressure, and then prompts the user to hold his breath before and after obtaining the pressure shock wave corresponding to the mean arterial pressure, so as to obtain a pressure shock wave without respiratory interference, thereby The user's blood pressure value is obtained based on the pressure shock wave, and this method can improve the accuracy of blood pressure measurement.

Combined with the first aspect, in one possible implementation, the pressure corresponding to the pressure oscillation wave at the suppression starting point is greater than the preset pressure value. Before detecting the suppression starting point based on the obtained pressure oscillation wave, the steps include:

Based on the acquired pressure oscillation wave, an envelope is drawn, and the moment when the suppression starting point is detected is the moment when the slope of the envelope is an extreme value.

Implementing the embodiments of this application, the electronic device can draw an envelope based on the acquired pressure oscillation wave when acquiring the pressure oscillation wave; based on the slope of the envelope line and the pressure detection suppression starting point corresponding to the pressure oscillation wave. This method can determine the location of the inhibition starting point based on the relationship between the slope of the envelope and the inhibition starting point.

Combined with the first aspect, in a possible implementation, the pressure corresponding to the pressure shock wave obtained when the starting point is suppressed and the maximum value of the pressure are the first ratio.

Implementing the embodiments of this application, the electronic device can detect the suppression starting point based on the ratio between the pressure corresponding to the obtained pressure shock wave and the maximum pressure when acquiring the pressure shock wave. When the ratio of the maximum values is the second ratio, it is determined that the suppression starting point is detected.

Among them, the maximum pressure value is the pressure corresponding to the pressure shock wave at the end of the pressure increase. The maximum pressure value can be predicted based on the obtained pressure shock wave; the first ratio is a preset value.

It should be noted that different users have different maximum pressure values. In a possible implementation, the embodiment of the present application can also use sample data to calculate the relationship between the pressure corresponding to the pressure oscillation wave at the starting point of suppression and the maximum pressure value. Therefore, based on the pressure corresponding to the pressure oscillation wave at the starting point of suppression, The relationship between pressure and maximum pressure determines the first ratio.

Combined with the first aspect, in a possible implementation, before detecting the inhibition starting point, the method includes:

Extract signal features from the acquired pressure shock waves;

Based on the signal characteristics, the maximum pressure value is obtained through the regression relationship between the signal characteristics of the pressure shock wave and the maximum pressure value; the regression relationship is obtained based on the signal characteristics of the pressure shock wave of the sample user and the maximum pressure value of the sample user.

By implementing the embodiments of the present application, the electronic device can predict the maximum pressure value before detecting the suppression starting point based on the ratio between the pressure corresponding to the acquired pressure shock wave and the maximum pressure value.

In a possible implementation, the signal feature can be any one of the pressure change rate and the ratio of the current pressure to the historical maximum pressure.

Combined with the first aspect, in a possible implementation manner, the pressure corresponding to the pressure shock wave obtained at the suppression end point and the maximum pressure value are the second ratio.

Implementing the embodiments of this application, the electronic device can detect the suppression end point based on the ratio between the pressure corresponding to the obtained pressure shock wave and the maximum pressure when acquiring the pressure shock wave. When the ratio of the maximum values is the second ratio, it is determined that the suppression end point is detected.

It should be noted that different users have different maximum pressure values. Embodiments of the present application can use sample data to calculate the relationship between the pressure corresponding to the pressure shock wave at the suppression end point and the maximum pressure value, and further, by suppressing the pressure at the end point The relationship between the pressure corresponding to the shock wave and the maximum pressure value determines the second ratio.

Combined with the first aspect, in a possible implementation, the duration from the suppression starting point to the suppression end point is a preset duration.

In a possible implementation, the above-mentioned preset duration can be obtained based on statistics from sample data. For example, the positions of the suppression starting point and the suppression end point are marked in multiple sample shock waves, thereby counting the number of suppression start points and suppression end points in multiple sample shock waves. The duration from the suppression start point to the suppression end point; determine the preset duration based on statistical results.

Combined with the first aspect, in a possible implementation, the detection and suppression starting point based on the obtained pressure shock wave includes:

Detect the degree of respiratory interference based on the acquired pressure shock wave;

When it is detected that the degree of respiratory interference is strong interference, the suppression starting point is detected based on the obtained pressure shock wave.

By implementing the embodiments of this application, the electronic device can first detect the degree of respiratory interference before detecting the suppression starting point; and then detect the suppression starting point when it is determined that the user's respiratory interference degree is strong interference. By detecting the degree of breathing interference, this method does not need to perform detection of the suppression starting point and suppression end point when the user's breathing interference is not strong, and prompts the user for operations, which can avoid unnecessary operations and save the power of the electronic device.

Combined with the first aspect, in a possible implementation, detecting the degree of respiratory interference based on the obtained pressure shock wave includes:

Input the obtained pressure oscillation wave into the interference identification model to obtain the detection result of the degree of respiratory interference;

The interference identification model is trained based on the sample pressure oscillation wave as the input, and the respiratory interference degree of the sample pressure oscillation wave as the label.

Combined with the first aspect, in a possible implementation, detecting the degree of respiratory interference based on the obtained pressure shock wave includes:

When the signal intensity of the obtained low-frequency signal in the pressure shock wave is higher than the preset threshold, the detection result of the degree of respiratory interference is strong interference.

In conjunction with the first aspect, in a possible implementation, the prompting method for prompting the user to hold his breath and/or breathe normally includes at least one of display, voice broadcast, and vibration.

In one possible implementation, the prompting method for prompting the user to hold his breath and/or breathe normally includes any combination of display, voice announcement, and vibration.

When implementing the embodiments of this application, the electronic device can prompt the user to hold his breath and breathe normally through various prompting methods, which are not limited here.

In a second aspect, embodiments of the present application provide a blood pressure measurement device, which includes an air bag, an air pump, a pressure sensor, one or more processors, a memory, and one or more computer programs;

Wherein, the air pump is used to inflate the air bag, and the pressure sensor is used to obtain a pressure shock wave from the air bag; the one or more computer programs are stored in the memory, and the one or A plurality of computer programs include instructions that, when executed by the blood pressure measurement device, cause the blood pressure measurement device to perform:

Get the user's pressure shock wave;

The suppression starting point is detected based on the obtained pressure oscillation wave, and the pressure corresponding to the pressure oscillation wave obtained at the suppression starting point does not reach the mean arterial pressure;

When the inhibition starting point is detected, the user is prompted to hold their breath;

When the suppression end point is detected, the user is prompted to breathe normally; the moment when the suppression end point is detected is after the pressure corresponding to the pressure shock wave reaches the mean arterial pressure;

The mean arterial pressure is determined based on the pressure shock wave from the suppression start point to the suppression end point.

In conjunction with the second aspect, in a possible implementation manner, the blood pressure measurement device performs acquisition of the user's pressure shock wave, specifically including:

Control the air pump to inflate the air bag;

During the inflation process, the pressure shock wave is obtained from the airbag through the pressure sensor, and the user's pressure shock wave is obtained.

Combined with the second aspect, in one possible implementation, the pressure corresponding to the pressure shock wave obtained when the starting point is suppressed is greater than the preset pressure value, and before detecting the suppression starting point based on the obtained pressure shock wave, the blood pressure measurement The device is also used to perform:

Based on the acquired pressure oscillation wave, an envelope is drawn, and the moment when the suppression starting point is detected is the moment when the slope of the envelope is an extreme value.

Combined with the second aspect, in a possible implementation, the pressure corresponding to the pressure shock wave obtained when the starting point is suppressed and the maximum value of the pressure are the first ratio.

Combined with the second aspect, in a possible implementation, before detecting the suppression starting point, the blood pressure measurement device is also used to perform:

Extract signal features from the acquired pressure shock waves;

Based on the signal characteristics, the maximum pressure value is obtained through the regression relationship between the signal characteristics of the pressure shock wave and the maximum pressure value; the regression relationship is obtained based on the signal characteristics of the pressure shock wave of the sample user and the maximum pressure value of the sample user.

Combined with the second aspect, in a possible implementation manner, the pressure corresponding to the pressure shock wave obtained at the end of the suppression point and the maximum pressure value are the second ratio.

Combined with the second aspect, in a possible implementation, the duration from the suppression start point to the suppression end point is a preset duration.

In conjunction with the second aspect, in a possible implementation, the blood pressure measurement device detects the suppression starting point based on the acquired pressure shock wave, which specifically includes:

Detect the degree of respiratory interference based on the acquired pressure shock wave;

When it is detected that the degree of respiratory interference is strong interference, the suppression starting point is detected based on the obtained pressure shock wave.

In conjunction with the second aspect, in a possible implementation, the blood pressure measurement device detects the degree of respiratory interference based on the obtained pressure shock wave, which specifically includes:

Input the obtained pressure oscillation wave into the interference identification model to obtain the detection result of the degree of respiratory interference;

The interference identification model is trained based on the sample pressure oscillation wave as the input, and the respiratory interference degree of the sample pressure oscillation wave as the label.

In conjunction with the second aspect, in a possible implementation, the blood pressure measurement device detects the degree of respiratory interference based on the obtained pressure shock wave, which specifically includes:

When the signal intensity of the obtained low-frequency signal in the pressure shock wave is higher than the preset threshold, the detection result of the degree of respiratory interference is strong interference.

Combined with the second aspect, in a possible implementation, the prompting method for prompting the user to hold his breath and/or breathe normally includes at least one of display, voice broadcast, and vibration.

In a third aspect, embodiments of the present application provide an electronic device, including one or more functional modules, which can be used to perform blood pressure measurement as in any of the possible implementations of the first aspect. method.

In a fourth aspect, the present application provides a computer storage medium that includes computer instructions. When the computer instructions are run on an electronic device, the communication device causes the communication device to execute the blood pressure measurement method in any of the possible implementations of the first aspect.

In a fifth aspect, this application provides a computer program product. When the computer program product is run on a computer, it causes the computer to execute the blood pressure measurement method in any of the possible implementations of the first aspect.

In a sixth aspect, the present application provides a chip, including: a processor and an interface. The processor and the interface cooperate with each other so that the chip performs the blood pressure measurement method in any of the possible implementations of the first aspect.

It can be understood that the electronic device provided by the third aspect, the computer-readable storage medium provided by the fourth aspect, the computer program product provided by the fifth aspect, and the chip provided by the sixth aspect are all used to execute the tasks provided by the embodiments of the present application. method. Therefore, the beneficial effects it can achieve can be referred to the beneficial effects in the corresponding methods, and will not be described again here.

Description of the drawings

Figure 1 is a schematic diagram of a pressure shock wave when measuring blood pressure using an oscillometric method provided by an embodiment of the present application;

Figure 2 is a schematic diagram of the pressure shock wave distortion caused by breathing interference provided by the embodiment of the present application;

Figure 3 is a schematic diagram of a blood pressure measurement device provided by an embodiment of the present application;

Figure 4 is a schematic diagram of a blood pressure measuring watch provided by an embodiment of the present application;

Figure 5 is a schematic flow chart of a blood pressure measurement method provided by an embodiment of the present application;

Figure 6 is a schematic flow chart of another blood pressure measurement method provided by an embodiment of the present application;

Figure 7 is a schematic diagram of a user wearing a blood pressure measurement watch provided by an embodiment of the present application;

Figure 8 is a schematic diagram of a blood pressure measurement watch provided by an embodiment of the present application to prompt the user;

Figure 9 is a schematic diagram of the position of the pressure shock wave at the suppression starting point and the suppression end point provided by the embodiment of the present application;

Figure 10 is a schematic diagram of another blood pressure measurement watch provided by an embodiment of the present application to prompt the user;

Figure 11 is a schematic diagram of the hardware structure of an electronic device 100 provided by an embodiment of the present application;

FIG. 12 is a software structure block diagram of an electronic device 100 provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and in detail below with reference to the accompanying drawings. Among them, in the description of the embodiments of this application, unless otherwise stated, "/" means or, for example, A/B can mean A or B; "and/or" in the text is only a way to describe related objects. The association relationship means that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiment of the present application , "plurality" means two or more than two.

Hereinafter, the terms “first” and “second” are used for descriptive purposes only and shall not be understood as implying or implying relative importance or implicitly specifying the quantity of indicated technical features. 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” The meaning is two or more.

The term "user interface (UI)" in the following embodiments of this application is a media interface for interaction and information exchange between an application or operating system and a user. It realizes the difference between the internal form of information and the form acceptable to the user. conversion between. The user interface is source code written in specific computer languages such as Java and extensible markup language (XML). The interface source code is parsed and rendered on the electronic device, and finally presented as content that the user can recognize. The commonly used form of user interface is graphical user interface (GUI), which refers to a user interface related to computer operations that is displayed graphically. It can be text, icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, widgets and other visual interface elements displayed on the display screen of an electronic device.

Blood pressure is an important physiological parameter of the human body, which can reflect the functional status of the human heart and blood vessels. It can be used clinically to diagnose diseases and provide health guidance. Currently, non-invasive blood pressure measurement methods mainly include the Korotkoff sound method, oscillometric method, and methods based on pulse wave propagation velocity.

Among them, oscillometric blood pressure measurement is a technology widely used by various blood pressure monitors on the market. The principle is that when the cuff is inflated, the air pressure sensor in the cuff collects the pressure shock wave in the inflated cuff. When the cuff is inflated, When the pressure reaches the mean arterial pressure, the pressure oscillation wave amplitude reaches the maximum. By using a specific calculation method for the pressure oscillation wave, the human arterial blood pressure value can be obtained.

First, tie the cuff to the arm and automatically inflate the cuff. When it reaches a certain pressure (usually 30 to 50mmHg higher than the systolic blood pressure), stop inflating and start deflating. When the air pressure reaches a certain level, blood can flow through the blood vessels. , and there is a certain oscillation wave. The oscillation wave propagates to the pressure sensor through the trachea. The pressure sensor can detect the pressure and fluctuations in the measured cuff in real time. Keep deflating, and the oscillation wave will become larger and larger. As the contact between the cuff and the arm becomes looser after deflation, the pressure and fluctuations detected by the pressure sensor become smaller and smaller. Select the fluctuation time as the reference point. Based on this point, search forward to find the fluctuation point with a peak value of 0.45, which is the systolic blood pressure, and search backward to find the fluctuation point with a peak value of 0.75. The pressure corresponding to this point is the diastolic blood pressure. The pressure corresponding to the fluctuating point is the average pressure.

Please refer to Figure 1 , which is a schematic diagram of an oscillometric method for measuring blood pressure according to an embodiment of the present application. The abscissa of the coordinate axis shown in Figure 1 is time, and the ordinate is pressure. The waveform in the upper part of Figure 1 is the waveform of the collected pressure shock wave; the waveform in the lower part of Figure 1 is the pressure after filtering out the low-frequency signal. Shockwave waveform. The user's blood pressure can be obtained based on the pressure oscillation wave, as shown in Figure 1. When the amplitude of the pressure oscillation wave is the largest, it corresponds to the mean blood pressure (MBP), and the systolic blood pressure (SBP) is before the mean blood pressure. , diastolic blood pressure (DBP) is located after average blood pressure.

However, when measuring blood pressure with the oscillometric method, breathing will interfere with the pressure oscillation wave, causing deviations in blood pressure measurement and even failure of blood pressure measurement. Since the interference of breathing on the signal presents quasi-sinusoidal fluctuations, it has a superposition property on the signal. If the respiratory wave trough is superimposed on the pressure shock wave peak, the pressure shock wave peak may be lost. If the respiratory wave peak is superimposed on the pressure shock wave, it may cause the pressure shock wave peak to shift and the amplitude change to be distorted. Therefore, breathing interferes with the pressure oscillation wave, causing feature extraction deviation or even feature extraction failure.

Please refer to Figure 2. Figure 2 is a schematic diagram of pressure shock wave distortion caused by breathing interference provided by an embodiment of the present application. As shown in Figure 2, the pressure shock wave undergoes peak shift and amplitude change distortion.

The following is an example of two methods for suppressing respiratory interference when measuring blood pressure.

Method 1: Respiratory interference can be suppressed through filtering methods. The filtering methods include digital filtering and hardware filtering. Since hardware filtering requires a high-precision capacitance-resistance network, if there is a certain deviation in the resistance value, it will cause a deviation in the frequency during filtering, resulting in a deviation in the filtering band; therefore, digital filtering is currently used for filtering, and the filtering algorithm has A variety of filtering methods, including frequency domain filtering, homomorphic filtering, wavelet ridge and other filtering methods.

Take the commonly used frequency domain filtering method as an example: when a person is still, the breathing frequency is generally 12-20 times per minute, that is, the frequency of the breathing wave is below 0.1Hz. After using a high-pass filter of 0.5Hz, it cannot be used. Breathing interference is completely eliminated, but the impact of breathing interference on the pressure shock wave still exists. Moreover, the use of filtering also loses low-frequency pressure shock wave information, resulting in loss of signal information. Since the filtering method cannot completely eliminate the impact of respiratory interference on the pressure shock wave, there will still be a calculation deviation when calculating blood pressure using the filtered signal.

Method 2: Breathing interference can be suppressed through breathing guidance. The sphygmomanometer uses breathing indicators or other prompts to guide the user to follow a certain rhythm to adjust breathing, calm down, and stabilize blood pressure, thereby reducing errors in the blood pressure measurement process. Although breathing guidance can reduce the blood pressure deviation caused by state fluctuations to a certain extent, it cannot eliminate the impact of breathing interference on blood pressure measurement. At the same time, the user may adjust the breathing, causing the breathing amplitude to increase, which in turn aggravates breathing interference.

In summary, it can be seen that the above blood pressure measurement method still has the problem of inaccurate measurement results due to breathing.

In order to solve the above problem, the following embodiments of the present application provide a blood pressure measurement method. In this method, the user can be prompted to hold his breath before and after obtaining the pressure shock wave corresponding to the mean arterial pressure, so as to obtain the pressure shock wave without respiratory interference. Thus, the user's blood pressure value is obtained based on the pressure shock wave, and this method can improve the accuracy of blood pressure measurement. For specific implementation, please refer to the relevant descriptions of subsequent embodiments and will not be described again here.

The blood pressure measurement method provided by the embodiment of the present application can be applied to electronic devices, which can be wearable devices (such as watches), desktop blood pressure monitors, mobile phones, tablet computers, notebook computers, and ultra-mobile personal computers. , UMPC), netbook, personal digital assistant (personal digital assistant, PDA), etc. The embodiments of the present application do not place any restrictions on the specific types of electronic devices.

As an example and not a limitation, when the electronic device is a wearable device, the wearable device may also be a general term for devices that are wearable by applying wearable technology to intelligently design daily wear, such as glasses, gloves, Watches, clothing and shoes, etc. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly defined wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones. , such as various smart bracelets, smart watches, smart jewelry, etc. for physical sign monitoring.

The embodiments of the present application can be applied to any portable devices such as wearable devices. Example embodiments of portable devices include but are not limited to portable terminal devices equipped with iOS, Android, Microsoft or other operating systems. The wearable device may be, for example, an augmented reality (AR) device, a virtual reality (VR) device, an artificial intelligence (AI) device, etc. The embodiments of this application do not specify the type of the wearable device. Specific limitations. This wearable device can detect the user's blood pressure with the help of its wearable characteristics.

The following is an exemplary illustration of an electronic device according to an embodiment of the present application. The electronic device may specifically be the blood pressure measurement device in Figure 3 or Figure 4. The blood pressure measurement device in the embodiment of the present application may be applied in the field of wearable medical equipment and daily life. Guardianship, etc.

FIG. 3 exemplarily shows a schematic diagram of a blood pressure measurement device provided by an embodiment of the present application. As shown in Figure 3, the blood pressure measuring device 10 includes:

The airbag 101 is used to store the air inflated by the air pump, and surrounds and fits the user's arm. For example, the airbag 101 can be worn on the user's wrist.

The air pump 102 is connected with the air bag 101 and is used to inflate the air bag 101. The air pump 102 can be a miniaturized air pump, can be built into the air bag 101, or can be fixed on the outer wall of the air bag 101.

The pressure sensor 103 is disposed inside the airbag 101 for detecting changes in pressure within the airbag 101 and transmitting relevant measurement data to the main control module 104 .

The main control module 104 is electrically connected to the air pump 102 and the pressure sensor 103 respectively, and is used to control the air pump 102 to inflate the air bag 101 and receive data measured by the pressure sensor 103 at the same time. Optionally, the main control module 104 may be a microcontroller unit (MCU).

In the embodiment of the present application, the main control module 104 is used to control the air pump 102 and the pressure sensor 103 to perform the blood pressure measurement method provided in the embodiment of the present application. For example, the main control module 104 can control the air pump to inflate the air bag, and at the same time obtain the air bag pressure through the pressure sensor. The pressure shock wave of the user is obtained; then, the suppression starting point is detected based on the obtained pressure shock wave. When the pressure shock wave obtained when the suppression starting point is suppressed, the corresponding pressure does not reach the mean arterial pressure; when the suppression starting point is detected when the suppression end point is detected, the user is prompted to breathe normally; the moment when the suppression end point is detected is after the pressure corresponding to the pressure oscillation wave reaches the mean arterial pressure; based on the pressure oscillation from the suppression starting point to the suppression end point wave to determine mean arterial pressure. For specific implementation, please refer to the relevant content of the following embodiments and will not be described again here.

In some embodiments, the blood pressure measurement device 10 may also include a wireless power supply module, which may include a power supply coil and a power supply control module. Among them, the power supply coil is used to sense the alternating magnetic field generated by the discharge coil of the mobile terminal to generate an induced oscillation current; the power supply control module is used to convert the induced oscillation current into a direct current and supply it to the main control module 104, the air pump 102, and the pressure sensor 103. powered by.

Specifically, the blood pressure information can be used to determine the user's blood pressure value and other physical data. The pressure sensor 103 can measure the user's blood pressure and send the measurement data to the main control module 104. The main control module 104 receives the measurement data and determines the user's blood pressure value based on the measurement data. The blood pressure information can include the blood pressure value. Information, that is to say, the main control module 104 can send blood pressure value information to the mobile terminal and/or other electronic devices. The mobile terminal and/or other electronic devices can display the blood pressure value information to the user through a display screen, or can also broadcast it to the user through a voice player. In addition, a user's health report can also be generated based on information on multiple blood pressure values, and this application is not limited to this.

In some embodiments, the blood pressure information may also include information on part or all of the measurement data of the pressure sensor. That is to say, the part or all of the measurement data may be directly sent to the mobile terminal and/or other devices without processing. Electronic equipment, the mobile terminal and/or other electronic equipment can process the measurement data and determine the user's blood pressure value, which is not limited in this application.

In this embodiment, the mobile terminal can be any one of a smart watch, a smart bracelet, a mobile phone, and a tablet computer, and this application is not limited thereto.

The aforementioned other electronic devices may be other mobile terminals, or electronic devices such as smart TVs, smart speakers, and desktop computers. This application is not limited to this.

In other embodiments, the blood pressure measurement device 10 may also include a wireless communication module (not shown in the figure), and the main control module 104 sends the user's blood pressure information to the mobile terminal and/or other electronic devices through the wireless communication module. By setting up a wireless communication module to send the blood pressure information, the use of wired connection methods such as metal contacts can be avoided, thereby improving versatility (some mobile terminals may not support wired connections. In addition, if wired connections are used, it may be necessary to Adding additional accessories) will help improve user efficiency. As an example, the wireless communication module can be any one of Bluetooth, WIFI, NFC, and infrared modules.

In other embodiments, the blood pressure measurement device 10 may further include a display screen for displaying the user's blood pressure information and/or a voice player for broadcasting the blood pressure information. In this way, the blood pressure measuring device 10 can display or broadcast blood pressure information to the user by itself, thereby eliminating the need to borrow other equipment to perform the above operations.

In this embodiment, the airbag 101 can be a long strip structure and can be placed around the outside of the human wrist. In order to facilitate the airbag 101 to be placed around and fit to the outside of the human wrist, the two ends of the airbag 101 can be placed separately. Cooperating fixing devices are provided, through which the airbag 101 is surrounded and fitted to the human wrist. For example, the fastening device may be a snap or Velcro. In addition, to facilitate measurement, the airbag 101 is usually made of elastic material. For example, the airbag 101 may be made of rubber.

Optionally, the display screen can be used to display information such as blood pressure values, and the display screen can be a liquid crystal display (LCD) display or an organic light-emitting diode (OLED) display.

It should be noted that the blood pressure measurement device 10 shown in FIG. 3 is only an exemplary device provided by the embodiment of the present application. The blood pressure measurement device of the embodiment of the present application may also include other more or less components, which will not be described again here. .

The following uses a watch as an example to introduce another blood pressure measurement device provided by an embodiment of the present application. The blood pressure measurement device is a blood pressure measurement watch.

Figure 4 shows a schematic diagram of a blood pressure measurement watch provided by an embodiment of the present application.

As shown in FIG. 4 , the blood pressure measuring watch 20 includes: a watch body 202 , a watch strap, an air bag 205 , a micropump (not shown), a pressure sensor (not shown), and a connecting device 206 . in:

The watch strap is used to wear the watch body 202 on the user's wrist. The watch band includes a first watch band 201 and a second watch band 203 located at opposite ends of the watch body 202. The first watch band 201 and the second watch band 203 are respectively rotatably connected to the watch body 202. The airbag 205 is provided on the first watch band. 201 or the second strap 203.

The end of the first watch band 201 and the end of the second watch band 203 away from the watch body 202 may be provided with a fixing device 204. When the user wears the blood pressure measurement watch, the watch body 202 is brought into contact with the user's wrist, and the first watch band 203 is bent. The watch band 201 and the second watch band 203 are fixedly connected through the fixing device 204 to wear the blood pressure measuring watch on the user's wrist. By adjusting the connection positions of the first watch band 201, the second watch band 203 and the fixing device 204, the tightness of the watch band binding is adjusted.

It should be noted that the embodiment of the present application does not limit the specific structure of the fixing device 204, including folding buckles, pin buckles, butterfly concealed buckles, etc., which can secure the end of the first strap 201 and the second strap away from the watch body 202. Structure with 203 end connections.

The airbag 205 is used to contact the user's wrist when the watch body 202 is worn on the user's wrist. It can be understood that in order to facilitate blood pressure measurement, the air bag 205 is usually made of flexible materials. For example, the air bag 205 can be made of thermoplastic polyurethane (TPU), polyvinyl chloride (PVC), or silicone.

The connecting device 206 is located between the air bag 205 and the watch strap; the micropump is connected to the air path of the inner cavity of the air bag 205, and is used to inflate or deflate the inner cavity; the air pressure sensor is connected to the air path of the inner cavity of the air bag 205, and is used to During the process of inflating or deflating the micropump, the pressure signal of the inner cavity is detected.

In the embodiment of the present application, the placement positions of the micropump and the air pressure sensor are not limited, and they can achieve air path communication with the air bag 205 respectively. In some embodiments, the micropump is provided in the watch body 202 and the air pressure sensor is provided on the air bag 205 . In some embodiments, the micropump and air pressure sensor are integrated on the balloon 205.

In a possible implementation manner, the blood pressure measurement watch further includes a signal processing unit configured to receive the pressure signal from the air pressure sensor. The signal processing unit may be a microcontrol unit or other unit with the function of processing signals.

In one possible implementation, the blood pressure measurement watch also includes a circuit board, such as a printed circuit board, provided in the watch body 202. The above-mentioned micropump, air pressure sensor and signal processing unit are provided on the circuit board, so that the circuit board implements connect.

In a possible implementation, the blood pressure measurement watch may also include components that can ensure the normal operation of the blood pressure measurement watch, such as power supply components, display components, wireless communication components, etc., where the power supply component supplies power to the blood pressure measurement watch, and the wireless communication components can To communicate with other devices, the display component can be used to display the measured blood pressure value of the user.

Next, the blood pressure measurement method provided by the embodiment of the present application is introduced.

Figure 5 shows a schematic flow chart of a blood pressure measurement method provided by this application. As an example and not a limitation, this method can be applied to the above-mentioned electronic device. The method includes some or all of the following steps:

S501. The electronic device obtains the user's pressure shock wave.

In some embodiments, the electronic device is the blood pressure measuring device shown in Figure 3 or the blood pressure measuring watch shown in Figure 4, then the user can wear the electronic device on the body part; accordingly, the electronic device detects that the user After the operation, the air pump is controlled to inflate the air bag, and the pressure shock wave in the air bag is obtained through the pressure sensor to obtain the user's pressure shock wave. It should be noted that the pressure shock wave can also be called a pressure shock wave signal.

The body part where the user wears the blood pressure measurement device may be the wrist or the upper arm. This embodiment does not limit the specific location of the body part.

In other embodiments, the electronic device can be a terminal device such as a mobile phone, and the electronic device establishes a communication connection with a collection device capable of collecting the user's pressure shock wave; furthermore, the electronic device can receive the pressure shock wave sent by the collection device.

The collection device may be a desktop blood pressure monitor, etc.; the communication connection established between the electronic device and the collection device may include but is not limited to: Wi-Fi P2P communication connection, Bluetooth connection, NFC connection, etc.

S502. The electronic device detects the suppression starting point based on the obtained pressure shock wave. When suppressing the starting point, the pressure corresponding to the pressure shock wave obtained does not reach the mean arterial pressure.

In some embodiments, the electronic device can detect the suppression starting point in real time during the process of acquiring the pressure shock wave, where the suppression starting point is located before the pressure of the pressure shock wave reaches the mean arterial pressure.

The following is an example of the specific implementation of two detection and suppression starting points.

In one implementation, the electronic device can draw an envelope in real time based on the acquired pressure shock wave; and detect the suppression starting point based on the envelope. For example, the electronic device can determine the moment corresponding to the extreme value of the slope of the envelope line as the suppression starting point; for another example, the electronic device detects that the slope of the envelope line is an extreme value at a certain moment, and the pressure shock wave at that moment corresponds to If the pressure is greater than the preset pressure value, it is determined that the suppression starting point is detected at that moment.

In another implementation, the electronic device can predict the maximum pressure value based on the obtained pressure oscillation wave; furthermore, when the pressure corresponding to the pressure oscillation wave is detected and the maximum pressure value is the first ratio, determine that the pressure detected at that moment Inhibit starting point. Among them, the maximum value of pressurization is the pressure corresponding to the pressure shock wave at the end of pressurization.

Among them, the pressure shock wave that predicts the maximum pressure value may be the pressure shock wave before the pressure value reaches the preset value. It can be understood that since the pressure shock wave is collected during the process of inflating the air bag, the basic trend of the pressure of the pressure shock wave is to continue to rise until the peak value (ie, the mean arterial pressure) as shown in Figure 1, so the preset pressure is less than the peak value. A numerical value that can be determined based on empirical values. For example, when the pressure of the pressure shock wave obtained is a preset value, the electronic device can predict the maximum pressure value based on all the pressure shock waves currently collected; after the maximum pressure value is obtained, the pressure of the pressure shock wave obtained in real time is Comparing the ratio of the maximum pressure value with the first ratio, when the pressure corresponding to the pressure shock wave and the maximum pressure value are the first ratio, it is determined that the suppression starting point is detected.

Among them, the method for the electronic device to predict the maximum pressure value may be to extract signal features from the obtained pressure shock wave; based on the signal features, through the regression relationship between the signal characteristics of the pressure shock wave and the maximum pressure value, the user can be obtained The maximum pressure value; the regression relationship is obtained based on the signal characteristics of the pressure shock wave of the sample user and the maximum pressure value of the sample user.

In other embodiments, the electronic device may first detect the degree of respiratory interference based on the obtained pressure oscillation wave; then, when detecting that the degree of respiratory interference is strong interference, the electronic device may detect the suppression starting point based on the obtained pressure oscillation wave.

The following is an exemplary introduction to two specific implementations of detecting the degree of respiratory interference.

In one implementation, the electronic device can input the obtained pressure oscillation wave into an interference identification model to obtain a detection result of the degree of respiratory interference. The interference identification model is based on the sample pressure oscillation wave as input, and the respiration of the sample pressure oscillation wave is The degree of interference is obtained by label training. For example, the electronic device can input the pressure oscillation wave obtained by the target time period into the interference identification model to obtain the detection result of the degree of respiratory interference, where the target time period refers to the starting time of the measurement to the current time, or includes the current time and within The preset amount of time before the current time.

In another implementation, the electronic device can acquire the low-frequency signal in the pressure shock wave. When it is determined that the signal strength of the low-frequency signal is higher than the preset threshold, the detection result of the degree of respiratory interference is strong interference; conversely, the degree of respiratory interference is determined to be strong interference. The detection result is weak interference.

It should be noted that the specific content of the electronic device detecting and suppressing the starting point based on the acquired pressure shock wave can also be found in the relevant content of Figure 6 .

S503. When the electronic device detects the starting point of suppression, it prompts the user to hold his breath.

Among them, the way the electronic device prompts the user to hold his breath can include at least one of display, voice broadcast, and vibration; it can also be a combination of any of the display, voice broadcast, and vibration; it can also be other prompting methods, here Not limited.

S504. The electronic device detects the suppression end point based on the obtained pressure shock wave. The time when the suppression end point is detected is after the pressure corresponding to the pressure shock wave reaches the mean arterial pressure.

In one implementation, the electronic device can determine the suppression end point based on the suppression start point, where the duration from the suppression start point to the suppression end point is a preset duration. For example, the electronic device starts timing when it detects the starting point of suppression, and determines the moment as the end point of suppression when the timing reaches the preset time period. The preset duration can be determined based on experience values, and the specific value of the preset duration is not limited here.

In another implementation, the electronic device may determine the suppression end point based on the predicted pressurization maximum. For example, the electronic device can calculate the ratio of the pressure corresponding to the acquired pressure oscillation wave to the predicted maximum pressure value in real time, and determine that suppression is detected when the pressure corresponding to the acquired pressure oscillation wave and the maximum pressure value reach a second ratio. end point.

S505. When the electronic device detects the suppression end point, it prompts the user to breathe normally.

Among them, the way the electronic device prompts the user to breathe normally can include at least one of display, voice broadcast, and vibration; it can also be a combination of any of the display, voice broadcast, and vibration; it can also be other prompting methods. This There are no restrictions anywhere.

S506. The electronic device determines the mean arterial pressure based on the pressure shock wave from the suppression starting point to the suppression end point.

In some embodiments, after acquiring the pressure shock wave from the suppression starting point to the suppression end point, the electronic device can calculate the mean arterial pressure based on the pressure shock wave from the suppression starting point to the suppression end point; furthermore, the electronic device can also calculate the mean arterial pressure based on the pressure shock wave from the suppression starting point to the suppression end point. Mean Arterial Pressure, which calculates the user's diastolic and systolic blood pressure.

It should be noted that in other embodiments, the electronic device can also calculate the user's blood pressure based on the pressure shock wave from zero to the maximum pressure value after the pressure corresponding to the obtained pressure shock wave reaches the maximum pressure value. values, where the user's blood pressure values can include mean arterial pressure, diastolic blood pressure, and systolic blood pressure. The method of calculating the blood pressure value based on the pressure shock wave is not limited here.

In some embodiments, after obtaining the user's blood pressure, the blood pressure measuring watch can also display the user's blood pressure value through the display screen; it can also broadcast the user's blood pressure value through voice.

Another blood pressure measurement method provided by an embodiment of the present application will be described in detail below based on the schematic diagram of the blood pressure measurement watch shown in FIG. 4 . It should be noted that this blood pressure measurement watch may also be called a narrow air bag wrist blood pressure watch in some embodiments.

Please refer to FIG. 6 , which illustrates an exemplary flow of another blood pressure measurement method provided by an embodiment of the present application. As shown in Figure 6, the blood pressure measurement method may include some or all of the following steps:

S601. The blood pressure measuring watch collects pressure shock waves.

In some embodiments, before the blood pressure measurement watch collects the pressure shock wave, the user needs to wear the blood pressure measurement watch on the wrist. Please refer to FIG. 7 , which is a schematic diagram of a user wearing a blood pressure measurement watch according to an embodiment of the present application. As shown in Figure 7, the user can wear the blood pressure measuring watch on the wrist through the fixing device of the blood pressure measuring watch. The display of the blood pressure measuring watch is located on the back side of the hand, and the air bag of the blood pressure measuring watch is mainly located on the palm side; wherein, the fixing device can It is a structure that can fix the blood pressure measuring watch on the wrist such as folding buckle, pin buckle and butterfly buckle. It should be noted that the pressure shock wave collected on the wrist can also be called a pulse pressure shock wave signal.

In one implementation, the user can first wear the blood pressure measuring watch on the wrist; then, after receiving the user operation to start measuring blood pressure, the blood pressure measuring watch starts to inflate the air bag through the air pump, and at the same time, collects the pressure in the air bag through the pressure sensor. Shockwave.

Among them, the blood pressure measurement watch can receive user operations in multiple ways, which are not limited here. For example, if a blood pressure measuring watch has a touch screen, when the blood pressure measuring watch detects a certain user operation on the touch screen, it starts to inflate the air bag through the air pump, and at the same time, collects the pressure shock wave in the air bag through the pressure sensor; and For example, if a blood pressure measurement watch has a voice recognition function, the blood pressure measurement watch can start collecting pressure shock waves when it hears a preset voice. For example, the preset voice can be "Start measuring blood pressure", and the user can say "Start measuring blood pressure." " Correspondingly, when receiving the preset voice, the blood pressure measurement watch starts to inflate the air bag through the air pump, and at the same time, collects the pressure shock wave in the air bag through the pressure sensor.

In another implementation, the blood pressure measurement watch can start collecting the user's pressure shock wave when receiving a user instruction from the control device, where the user instruction is used to instruct the blood pressure measurement watch to start measuring blood pressure. For example, the control device is a mobile phone, and the blood pressure measurement watch can establish a communication connection with the mobile phone. The application corresponding to the blood pressure measurement watch can be installed on the mobile phone. When the mobile phone detects a user operation on the application interface, it can send a message to the blood pressure measurement watch. Send a user instruction, which is used to instruct the blood pressure measurement watch to start measuring blood pressure; after receiving the user operation, the blood pressure measurement watch begins to inflate the air bag through the air pump, and at the same time, collects the pressure shock wave in the air bag through the pressure sensor.

It should be noted that the control device can also be an electronic device such as a tablet computer, a laptop computer, a super mobile personal computer, a netbook, a personal digital assistant, etc., and is not limited here.

The communication connection established between the blood pressure measurement watch and the control device may include but is not limited to: Wi-Fi P2P communication connection, Bluetooth connection, NFC connection, etc.

S602. The blood pressure measurement watch detects whether the degree of respiratory interference is strong interference based on the collected pressure shock wave.

In some embodiments, the blood pressure measurement watch can detect the degree of respiratory interference based on the obtained pressure shock wave before the pressure in the air bag increases to the preset pressure; further, when it is detected that the degree of respiratory interference is strong interference, step S603 is performed. When the pressure in the air bag increases to the preset pressure, and the degree of respiratory interference is still not detected as strong interference, step S604 is executed.

Among them, the degree of respiratory interference can be divided into strong interference and weak interference. It is understandable that it can also be divided into those that need to be suppressed and those that do not need to be suppressed. If the degree of respiratory interference is strong, it needs to be suppressed. If the degree of respiratory interference is weak, it does not need to be suppressed.

The following is an exemplary introduction to two specific implementations of detecting the degree of respiratory interference.

In one implementation, the blood pressure measurement watch can input the acquired pressure oscillation wave into an interference identification model to obtain a detection result of the degree of respiratory interference. The interference identification model is based on the sample pressure oscillation wave as input, and the sample pressure oscillation wave is The degree of breathing interference is obtained by label training. For example, the interference identification model can be a two-class model, and the detection results of the degree of respiratory interference include strong interference and weak interference.

Optionally, the blood pressure measurement watch can determine the pressure shock wave to be input to the interference identification model through a sliding time window. For example, if the length of the sliding time period is m and the step size is n, then the blood pressure measurement watch can input the pressure shock wave collected from time 0 to time m into the interference identification model at time m to determine the detection result of respiratory interference at time m. If m If the detection result of respiratory interference at time is strong interference, step S603 is executed; if the detection result of respiratory interference at time m is weak interference, the blood pressure measurement watch inputs the pressure shock waves collected from time n to time m+n into the interference identification model. , the detection result of respiratory interference at time m+n is obtained, and so on, until the pressure in the air bag increases to the preset pressure or the detection result of respiratory interference is detected as strong interference; where, m and n are both positive numbers.

In one implementation, the blood pressure measurement watch can obtain a low-frequency signal from the pressure shock wave. When the low-frequency signal is higher than the preset threshold, the current degree of respiratory interference is determined to be strong interference; conversely, the current degree of respiratory interference is weak interference. For example, a blood pressure measurement watch can obtain low-frequency signals from the collected pressure shock waves in real time. When the low-frequency signals are higher than the preset threshold, the current level of respiratory interference is determined to be strong interference. Among them, the preset threshold can be determined by the energy distribution of the sample pressure oscillation wave. For example, when the low-frequency signal in multiple sample pressure oscillation waves is higher than 0.05Hz, the degree of respiratory interference is strong interference, then the preset threshold can be set to 0.05. Hz.

S603. When the blood pressure measurement watch detects that the degree of respiratory interference is strong, it detects the starting point of suppression based on the collected pressure shock wave.

The following is an example of the specific implementation of two detection and suppression starting points.

In one implementation, a blood pressure measurement watch can draw an envelope in real time while collecting pressure shock waves; calculate the slope of the envelope to detect the starting point of suppression. For example, a blood pressure measuring watch can determine the moment when the slope of the envelope line is an extreme value as the starting point of suppression; for another example, a blood pressure measuring watch can detect that the slope of the envelope line is an extreme value at a certain moment, and the pressure at that moment oscillates. If the pressure corresponding to the wave is greater than the preset pressure value, it is determined that the suppression starting point is detected at that moment.

In another implementation, the blood pressure measurement watch can predict the maximum pressure value based on the obtained pressure shock wave; furthermore, when the pressure corresponding to the pressure shock wave is detected and the maximum pressure value is the first ratio, determine the detection at that time to the starting point of inhibition. Among them, the maximum value of pressurization is the pressure corresponding to the pressure shock wave at the end of pressurization. For example, the first ratio is x%, and x is a positive number. When the airbag pressure reaches the preset pressure value, the blood pressure measuring watch can preset the maximum pressure value based on the currently collected pressure shock wave. Then, the pressure in the airbag rises. When x% of the maximum pressure value is reached, it is determined that the onset of inhibition is detected.

Among them, the method of predicting the maximum pressure value by the blood pressure measuring watch can be obtained by learning the relationship between the previous pressure increase process and the maximum pressure value through a regression method (such as linear regression). For example, a blood pressure measurement watch can extract signal features from the acquired pressure shock wave; based on the signal features, the maximum pressure value of the user is obtained through the regression relationship between the signal characteristics of the pressure shock wave and the maximum pressure value; The regression relationship is obtained based on the signal characteristics of the pressure shock wave of the sample user and the maximum pressure value of the sample user. Among them, the signal characteristics can be the amplitude change rate of the pressure shock wave, the ratio of the current amplitude to the maximum amplitude, etc.

S604. The blood pressure measurement watch collects pressure shock waves normally until the blood pressure measurement ends.

In some embodiments, when the pressure in the air bag increases to the preset pressure and the blood pressure measurement watch still does not detect the degree of respiratory interference as strong interference, the blood pressure measurement watch can stop detecting the degree of respiratory interference and only continue to collect pressure shock wave indications. Blood pressure measurement ends. It should be noted that the end of blood pressure measurement may refer to the end of deflation of the air bag, or the end of the pressure in the air bag reaching the maximum pressure increase value, and there is no limit to this.

S605. When the blood pressure measurement watch detects the suppression starting point, it prompts the user to hold his breath through the first prompt method.

In some embodiments, the blood pressure measurement watch can prompt the user through any one of display screen display, voice broadcast, and vibration, or can prompt the user through any combination of display screen display, voice broadcast, and vibration. For example, the blood pressure measuring watch can display the first information through the display screen; for another example, the blood pressure measuring watch can play the first information through the display screen, where the first information is used to prompt the user to hold his breath.

In one implementation, the first prompt mode is a combination of display screen, voice broadcast and vibration, and the first information includes prompt information and preset voice, then the blood pressure measurement watch can play the preset voice when the prompt information is displayed on the display screen. , and vibrate at the same time to remind the user. The content of the prompt information and the preset voice may be the same or different.

Please refer to FIG. 8 , which is a schematic diagram of a blood pressure measuring watch prompting a user according to an embodiment of the present application. As shown in Figure 8, when the blood pressure measurement watch detects the starting point of suppression, it can display on the display screen "Please start to hold your breath when the prompt sounds, and keep your breath until the next prompt", and the voice broadcast "Please start to hold your breath", and at the same time , the blood pressure measurement watch can also remind the user through vibration.

S606. The blood pressure measurement watch detects the suppression end point based on the collected pressure shock wave.

In one implementation, the blood pressure measurement watch can determine the suppression end point via a preset duration. Among them, the preset duration is a fixed breath-holding duration. For example, after starting to hold your breath, keep the breath-holding state near the key pressure shock wave peak for several seconds to ensure the accuracy of key feature extraction. After the fixed breath-holding duration ends, resume Breathe normally.

In another implementation, a blood pressure measurement watch may detect the end of suppression point through the percentage of pressurization. For example, based on the possible maximum value of pressurization predicted by the model, the correlation between key feature extraction and pressurization percentage can be analyzed to ensure that the breath-holding phase during the pressurization phase is strongly correlated with key feature extraction, thereby determining the end point of respiratory interference suppression. .

It should be noted that for the specific implementation of detecting the suppression end point, please refer to the relevant content of step S504.

Please refer to FIG. 9 , which is a schematic diagram of the position of the pressure shock wave at the suppression starting point and the suppression end point provided by the embodiment of the present application. In Figure 9, black dots represent the suppression starting point and suppression end point. As shown in Figure 9, the suppression starting point and suppression end point are located before and after the peak of the pressure shock wave.

S607. When the blood pressure measurement watch detects the suppression end point, it prompts the user to breathe normally through the second prompt method.

In some embodiments, the first prompting method may be the same as the second prompting method, or may be different. For specific prompting methods, please refer to the relevant content of S605, which will not be described again here.

Please refer to FIG. 10 , which is a schematic diagram of another blood pressure measurement watch provided by an embodiment of the present application to prompt the user. As shown in Figure 10, when the blood pressure measurement watch detects the end point of suppression, it can display "Breathe-holding is over, you can resume normal breathing" on the display screen, and the voice broadcast is "Breathing-holding is over". At the same time, the blood pressure measuring watch can also vibrate. The user is prompted.

S608. The blood pressure measurement watch obtains the user's blood pressure based on the pressure shock wave collected from the suppression starting point to the suppression end point.

In one implementation, the blood pressure measurement watch can calculate the mean arterial pressure based on the pressure shock wave from the suppression start point to the suppression end point; further, the blood pressure measurement watch can also calculate the user's diastolic blood pressure and systolic blood pressure based on the mean arterial pressure.

It should be noted that in other embodiments, the blood pressure measurement watch can also calculate the user's blood pressure value based on the collected pressure shock wave after the pressure corresponding to the acquired pressure shock wave reaches the maximum pressure value or after the measurement is completed. The user's blood pressure values may include mean arterial pressure, diastolic blood pressure, and systolic blood pressure. The method of calculating the blood pressure value based on the pressure shock wave is not limited here.

In another implementation, the blood pressure measurement watch can also send the collected pressure shock wave to other devices, and the other devices calculate the user's blood pressure, and then receive the user's blood pressure sent by other devices.

In some embodiments, after obtaining the user's blood pressure, the blood pressure measuring watch can also display the user's blood pressure value through the display screen; it can also broadcast the user's blood pressure value through voice.

An electronic device 100 illustratively illustrated in an embodiment of the present application is introduced below with reference to FIGS. 11 and 12 . The electronic device 100 can perform the blood pressure measurement method shown in FIG. 5 or 6 .

FIG. 11 shows a schematic diagram of the hardware structure of the electronic device 100.

It should be understood that electronic device 100 may have more or fewer components than shown in the figures, may combine two or more components, or may have a different component configuration. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

The electronic device 100 may include: a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2. Mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, headphone interface 170D, sensor module 180, button 190, motor 191, indicator 192, camera 193, display screen 194 and Subscriber identification module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and ambient light. Sensor 180L, bone conduction sensor 180M, etc.

It can be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100 . In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figures, or some components may be combined, some components may be separated, or some components may be arranged differently. The components illustrated may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units. For example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (GPU), an image signal processor ( image signal processor (ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU), etc. . Among them, different processing units can be independent devices or integrated in one or more processors.

The controller may be the nerve center and command center of the electronic device 100 . The controller can generate operation control signals based on the instruction operation code and timing signals to complete the control of fetching and executing instructions.

The processor 110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in processor 110 is cache memory. This memory may hold instructions or data that have been recently used or recycled by processor 110 . If the processor 110 needs to use the instructions or data again, it can be called directly from the memory. Repeated access is avoided and the waiting time of the processor 110 is reduced, thus improving the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuitsound, I2S) interface, a pulse code modulation (PCM) interface, and a universal asynchronous receiver (universal asynchronous receiver) /transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (subscriber identity module, SIM) interface, and/or Universal serial bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 can separately couple the touch sensor 180K, charger, flash, camera 193, etc. through different I2C bus interfaces. For example, the processor 110 can be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through the I2C bus interface to implement the touch function of the electronic device 100 .

The I2S interface can be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 can be coupled with the audio module 170 through the I2S bus to implement communication between the processor 110 and the audio module 170 . In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the I2S interface to implement the function of answering calls through a Bluetooth headset.

The PCM interface can also be used for audio communications to sample, quantize and encode analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 can also transmit audio signals to the wireless communication module 160 through the PCM interface to implement the function of answering calls through a Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communication. The bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 and the wireless communication module 160 . For example, the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to implement the Bluetooth function. In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the UART interface to implement the function of playing music through a Bluetooth headset.

The MIPI interface can be used to connect the processor 110 with peripheral devices such as the display screen 194 and the camera 193 . MIPI interfaces include camera serial interface (CSI), display serial interface (displayserial interface, DSI), etc. In some embodiments, the processor 110 and the camera 193 communicate through the CSI interface to implement the shooting function of the electronic device 100 . The processor 110 and the display screen 194 communicate through the DSI interface to implement the display function of the electronic device 100 .

The GPIO interface can be configured through software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 110 with the camera 193, display screen 194, wireless communication module 160, audio module 170, sensor module 180, etc. The GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.

The SIM interface can be used to communicate with the SIM card interface 195 to implement the function of transmitting data to the SIM card or reading data in the SIM card.

The USB interface 130 is an interface that complies with USB standard specifications, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. The USB interface 130 can be used to connect a charger to charge the electronic device 100, and can also be used to transmit data between the electronic device 100 and peripheral devices. It can also be used to connect headphones to play audio through them. This interface can also be used to connect other electronic devices, such as AR devices, etc.

It can be understood that the interface connection relationships between the modules illustrated in the embodiments of the present application are only schematic illustrations and do not constitute a structural limitation of the electronic device 100 . In other embodiments of the present application, the electronic device 100 may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

The charging management module 140 is used to receive charging input from the charger. Among them, the charger can be a wireless charger or a wired charger.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, internal memory 121, external memory, display screen 194, camera 193, wireless communication module 160, etc.

The wireless communication function of the electronic device 100 can be implemented through the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example: Antenna 1 can be reused as a diversity antenna for a wireless LAN. In other embodiments, antennas may be used in conjunction with tuning switches.

The mobile communication module 150 can provide solutions for wireless communication including 2G/3G/4G/5G applied on the electronic device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves through the antenna 1, perform filtering, amplification and other processing on the received electromagnetic waves, and transmit them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves through the antenna 1 for radiation. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be disposed in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.

A modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low-frequency baseband signal to be sent into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs sound signals through audio devices (not limited to speaker 170A, receiver 170B, etc.), or displays images or videos through display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be independent of the processor 110 and may be provided in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide applications on the electronic device 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) network), Bluetooth (bluetooth, BT), and global navigation satellite system. (global navigation satellite system, GNSS), frequency modulation (FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110, frequency modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the electronic device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (codedivision multiple access, CDMA), broadband code Wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM , and/or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou satellite navigation system (beidounavigation satellite system, BDS), quasi-zenith satellite system (quasi- zenith satellitesystem (QZSS) and/or satellite based augmentation systems (SBAS).

The electronic device 100 implements display functions through a GPU, a display screen 194, an application processor, and the like. The GPU is an image processing microprocessor and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, videos, etc. Display 194 includes a display panel. The display panel can use a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic light emitting diode or an active matrix organic light emitting diode (active-matrix organic light emitting diode). , AMOLED), flexible light-emitting diodes (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diodes (QLED), etc. In some embodiments, the electronic device 100 may include 1 or N display screens 194, where N is a positive integer greater than 1.

The electronic device 100 can implement the shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process the data fed back by the camera 193. For example, when taking a photo, the shutter is opened, the light is transmitted to the camera sensor through the lens, the optical signal is converted into an electrical signal, and the camera sensor passes the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be provided in the camera 193.

Camera 193 is used to capture still images or video. The object passes through the lens to produce an optical image that is projected onto the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then passes the electrical signal to the ISP to convert it into a digital image signal. ISP outputs digital image signals to DSP for processing. DSP converts digital image signals into standard RGB, YUV and other format image signals. In some embodiments, the electronic device 100 may include 1 or N cameras 193, where N is a positive integer greater than 1.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy.

Video codecs are used to compress or decompress digital video. Electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in multiple encoding formats, such as moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

NPU is a neural network (NN) computing processor. By drawing on the structure of biological neural networks, such as the transmission mode between neurons in the human brain, it can quickly process input information and can continuously learn by itself. Intelligent cognitive applications of the electronic device 100 can be implemented through the NPU, such as image recognition, face recognition, speech recognition, text understanding, etc.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 100 . The external memory card communicates with the processor 110 through the external memory interface 120 to implement the data storage function. Such as saving music, videos, etc. files in external memory card.

Internal memory 121 may be used to store computer executable program code, which includes instructions. The processor 110 executes instructions stored in the internal memory 121 to execute various functional applications and data processing of the electronic device 100 . The internal memory 121 may include a program storage area and a data storage area. Among them, the stored program area can store the operating system, at least one application required for the function (such as face recognition function, fingerprint recognition function, mobile payment function, etc.). The storage data area can store data created during the use of the electronic device 100 (such as face information template data, fingerprint information templates, etc.). In addition, the internal memory 121 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), etc.

The electronic device 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone interface 170D, and the application processor. Such as music playback, recording, etc.

The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signals. Audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110 , or some functional modules of the audio module 170 may be provided in the processor 110 .

Speaker 170A, also called "speaker", is used to convert audio electrical signals into sound signals. The electronic device 100 can listen to music through the speaker 170A, or listen to hands-free calls.

Receiver 170B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the electronic device 100 answers a call or a voice message, the voice can be heard by bringing the receiver 170B close to the human ear.

Microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can speak close to the microphone 170C with the human mouth and input the sound signal to the microphone 170C. The electronic device 100 may be provided with at least one microphone 170C. In other embodiments, the electronic device 100 may be provided with two microphones 170C, which in addition to collecting sound signals, may also implement a noise reduction function. In other embodiments, the electronic device 100 can also be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions, etc.

The headphone interface 170D is used to connect wired headphones. The headphone interface 170D may be a USB interface 130, or may be a 3.5 mm open mobile terminal platform (OMTP) standard interface or a Cellular Telecommunications Industry Association of the USA (CTIA) standard interface.

The pressure sensor 180A is used to sense pressure signals and can convert the pressure signals into electrical signals. In some embodiments, pressure sensor 180A may be disposed on display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, etc. A capacitive pressure sensor may include at least two parallel plates of conductive material. When a force is applied to pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the intensity of the pressure based on the change in capacitance. When a touch operation is performed on the display screen 194, the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 100 may also calculate the touched position based on the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch location but with different touch operation intensities may correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold is applied to the short message application icon, an instruction to view the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold is applied to the short message application icon, an instruction to create a new short message is executed.

The gyro sensor 180B may be used to determine the motion posture of the electronic device 100 . In some embodiments, the angular velocity of electronic device 100 about three axes (ie, x, y, and z axes) may be determined by gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. For example, when the shutter is pressed, the gyro sensor 180B detects the angle at which the electronic device 100 shakes, calculates the distance that the lens module needs to compensate based on the angle, and allows the lens to offset the shake of the electronic device 100 through reverse movement to achieve anti-shake. The gyro sensor 180B can also be used for navigation and somatosensory game scenes.

Air pressure sensor 180C is used to measure air pressure. In some embodiments, the electronic device 100 calculates the altitude through the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.

Magnetic sensor 180D includes a Hall sensor. The electronic device 100 may utilize the magnetic sensor 180D to detect opening and closing of the flip holster. In some embodiments, when the electronic device 100 is a flip machine, the electronic device 100 may detect the opening and closing of the flip according to the magnetic sensor 180D. Then, based on the detected opening and closing status of the leather case or the opening and closing status of the flip cover, features such as automatic unlocking of the flip cover are set.

The acceleration sensor 180E can detect the acceleration of the electronic device 100 in various directions (generally three axes). When the electronic device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices and be used in horizontal and vertical screen switching, pedometer and other applications.

Distance sensor 180F for measuring distance. Electronic device 100 can measure distance via infrared or laser. In some embodiments, when shooting a scene, the electronic device 100 may utilize the distance sensor 180F to measure distance to achieve fast focusing.

Proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The electronic device 100 emits infrared light outwardly through the light emitting diode. Electronic device 100 uses photodiodes to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the electronic device 100 . When insufficient reflected light is detected, the electronic device 100 may determine that there is no object near the electronic device 100 . The electronic device 100 can use the proximity light sensor 180G to detect when the user holds the electronic device 100 close to the ear for talking, so as to automatically turn off the screen to save power. The proximity light sensor 180G can also be used in holster mode, and pocket mode automatically unlocks and locks the screen.

The ambient light sensor 180L is used to sense ambient light brightness. The electronic device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in the pocket to prevent accidental touching.

Fingerprint sensor 180H is used to collect fingerprints. The electronic device 100 can use the collected fingerprint characteristics to achieve fingerprint unlocking, access to application locks, fingerprint photography, fingerprint answering of incoming calls, etc.

Temperature sensor 180J is used to detect temperature. In some embodiments, the electronic device 100 utilizes the temperature detected by the temperature sensor 180J to execute the temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the electronic device 100 reduces the performance of a processor located near the temperature sensor 180J in order to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the electronic device 100 heats the battery 142 to prevent the low temperature from causing the electronic device 100 to shut down abnormally. In some other embodiments, when the temperature is lower than another threshold, the electronic device 100 performs boosting on the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.

Touch sensor 180K, also called "touch panel". The touch sensor 180K can be disposed on the display screen 194. The touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation on or near the touch sensor 180K. The touch sensor can pass the detected touch operation to the application processor to determine the touch event type. Visual output related to the touch operation may be provided through display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100 at a location different from that of the display screen 194 .

The buttons 190 include a power button, a volume button, etc. Key 190 may be a mechanical key. It can also be a touch button. The electronic device 100 may receive key inputs and generate key signal inputs related to user settings and function control of the electronic device 100 .

The motor 191 can generate vibration prompts. The motor 191 can be used for vibration prompts for incoming calls and can also be used for touch vibration feedback. For example, touch operations for different applications (such as taking pictures, audio playback, etc.) can correspond to different vibration feedback effects. The motor 191 can also respond to different vibration feedback effects for touch operations in different areas of the display screen 194 . Different application scenarios (such as time reminders, receiving information, alarm clocks, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also be customized.

The indicator 192 may be an indicator light, which may be used to indicate charging status, power changes, or may be used to synthesize requests, missed calls, notifications, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be connected to or separated from the electronic device 100 by inserting it into the SIM card interface 195 or pulling it out from the SIM card interface 195 . The electronic device 100 can support 1 or N SIM card interfaces, where N is a positive integer greater than 1. SIM card interface 195 can support Nano SIM card, Micro SIM card, SIM card, etc. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 is also compatible with different types of SIM cards. The SIM card interface 195 is also compatible with external memory cards. The electronic device 100 interacts with the network through the SIM card to implement functions such as calls and data communications.

In this embodiment of the present application, the electronic device 100 may be equipped with devices such as airbags, air pumps, and pressure sensors for acquiring pressure shock waves; the electronic device 100 may also acquire pressure shock waves through other devices.

In this embodiment of the present application, the electronic device 100 can execute the blood pressure measurement method through the processor 110 .

Figure 12 is a software structure block diagram of an electronic device provided by an embodiment of the present application.

The layered architecture divides the software into several layers, and each layer has clear roles and division of labor. The layers communicate through software interfaces. In some embodiments, the Android system is divided into four layers, from top to bottom: application layer, application framework layer, Android runtime (Android runtime) and system libraries, and kernel layer.

The application layer can include a series of application packages.

As shown in Figure 12, the application package can include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, short message, and blood pressure measurement management.

In some embodiments, users can communicate with other devices through blood pressure measurement management to obtain pressure shock waves.

The application framework layer provides an application programming interface (API) and programming framework for applications in the application layer. The application framework layer includes some predefined functions.

As shown in Figure 12, the application framework layer can include a display manager, a sensor manager, a cross-device connection manager, an event manager, an activity manager, a window manager, and a content provider. , view system, resource manager, notification manager, etc.

The display manager is used for system display management and is responsible for the management of all display-related transactions, including creation, destruction, orientation switching, size and status changes, etc. Generally speaking, there will only be one default display module on a single device, which is the main display module.

In this embodiment of the present application, the electronic device can display prompt information through the display manager to prompt the user to hold his breath or breathe normally. For the specific implementation process, please refer to the relevant content above.

The sensor manager is responsible for managing the status of sensors, managing applications to monitor sensor events, and reporting events to applications in real time.

The cross-device connection manager is used to establish a communication connection with the device and send image resources to the device based on the communication connection.

The event manager is used for the event management service of the system. It is responsible for receiving the events uploaded by the underlying layer and distributing them to each window, and completing the reception and distribution of events.

The task manager is used for the management of task (Activity) components, including startup management, life cycle management, task direction management, etc.

A window manager is used to manage window programs. The window manager can obtain the display size, determine whether there is a status bar, lock the screen, capture the screen, etc. The window manager is also responsible for window display management, including window display mode, display size, display coordinate position, display level and other related management.

For the specific execution process of each of the above embodiments, please refer to the relevant content of the blood pressure measurement method mentioned above.

Content providers are used to store and retrieve data and make this data accessible to applications. Said data can include videos, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

The view system includes visual controls, such as controls that display text, controls that display pictures, etc. A view system can be used to build applications. The display interface can be composed of one or more views. For example, a display interface including a text message notification icon may include a view for displaying text and a view for displaying pictures.

The resource manager provides various resources to applications, such as localized strings, icons, pictures, layout files, video files, etc.

The notification manager allows applications to display notification information in the status bar, which can be used to convey notification-type messages and can automatically disappear after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, etc. The notification manager can also be notifications that appear in the status bar at the top of the system in the form of charts or scroll bar text, such as notifications for applications running in the background, or notifications that appear on the screen in the form of conversation windows. For example, text information is prompted in the status bar, a beep sounds, the electronic device vibrates, the indicator light flashes, etc.

Android Runtime includes core libraries and virtual machines. The Android runtime is responsible for the scheduling and management of the Android system.

The core library contains two parts: one is the functional functions that need to be called by the Java language, and the other is the core library of Android.

The application layer and application framework layer run in virtual machines. The virtual machine executes the java files of the application layer and application framework layer into binary files. The virtual machine is used to perform object life cycle management, stack management, thread management, security and exception management, and garbage collection and other functions.

The system library (also called data management layer) can include multiple functional modules. For example: surface manager (surface manager), media libraries (Media Libraries), 3D graphics processing libraries (for example: OpenGL ES), 2D graphics engines (for example: SGL) and event data, etc.

The surface manager is used to manage the display subsystem and provides the fusion of 2D and 3D layers for multiple applications.

The media library supports playback and recording of a variety of commonly used audio and video formats, as well as static image files, etc. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, composition, and layer processing.

2D Graphics Engine is a drawing engine for 2D drawing.

The kernel layer is the layer between hardware and software. The kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.

Embodiments of the present application also provide an electronic device. The electronic device includes one or more processors and one or more memories; wherein the one or more memories are coupled to the one or more processors, and the one or more memories are used to For storing computer program code, the computer program code includes computer instructions. When one or more processors execute the computer instructions, the electronic device causes the electronic device to perform the method described in the above embodiments.

Embodiments of the present application also provide a computer program product containing instructions, which when the computer program product is run on an electronic device, causes the electronic device to execute the method described in the above embodiment.

Embodiments of the present application also provide a computer-readable storage medium, which includes instructions. When the instructions are run on an electronic device, the electronic device causes the electronic device to execute the method described in the above embodiment.

It can be understood that the various embodiments of the present application can be combined arbitrarily to achieve different technical effects.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in this application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk), etc.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments are implemented. This process can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, , may include the processes of the above method embodiments. The aforementioned storage media include: ROM, random access memory (RAM), magnetic disks, optical disks and other media that can store program codes.

In short, the above descriptions are only examples of the technical solution of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made based on the disclosure of this application shall be included in the protection scope of this application.

Claims (13)

1. A blood pressure measurement method, characterized in that the method includes: Get the user's pressure shock wave; The suppression starting point is detected based on the obtained pressure oscillation wave, and the pressure corresponding to the obtained pressure oscillation wave at the suppression starting point does not reach the mean arterial pressure; When the suppression starting point is detected, the user is prompted to hold his breath; When the suppression end point is detected, the user is prompted to breathe normally; the moment when the suppression end point is detected is after the pressure corresponding to the pressure shock wave reaches the mean arterial pressure; The mean arterial pressure is determined based on the pressure shock wave from the suppression start point to the suppression end point. 2. The method according to claim 1, characterized in that the pressure corresponding to the pressure shock wave obtained when suppressing the starting point is greater than the preset pressure value, before the suppression starting point is detected based on the obtained pressure shock wave. ,include: Based on the acquired pressure shock wave, an envelope is drawn, and the moment when the suppression starting point is detected is the moment when the slope of the envelope is an extreme value. 3. The method according to claim 1, characterized in that the pressure corresponding to the pressure shock wave obtained when the starting point is suppressed and the maximum pressure value are the first ratio. 4. The method according to claim 3, characterized in that, before the detection of the suppression starting point, it includes: Extract signal features from the acquired pressure shock waves; Based on the signal characteristics, the maximum pressure value is obtained through the regression relationship between the signal characteristics of the pressure shock wave and the maximum pressure value; the regression relationship is based on the signal characteristics of the pressure shock wave of the sample user and the sample user The maximum value of pressurization is obtained. 5. The method according to claim 3 or 4, characterized in that the pressure corresponding to the pressure shock wave obtained at the suppression end point and the maximum pressure value are a second ratio. 6. The method according to any one of claims 1 to 4, characterized in that the duration from the suppression starting point to the suppression end point is a preset duration. 7. The method according to any one of claims 1 to 6, characterized in that the detection and suppression starting point based on the obtained pressure shock wave includes: Detect the degree of respiratory interference based on the acquired pressure shock wave; When it is detected that the degree of respiratory interference is strong interference, the suppression starting point is detected based on the obtained pressure shock wave. 8. The method according to claim 7, wherein detecting the degree of respiratory interference based on the obtained pressure shock wave includes: Input the obtained pressure oscillation wave into the interference identification model to obtain the detection result of the degree of respiratory interference; The interference identification model is based on the sample pressure oscillation wave as input, and the degree of respiratory interference of the sample pressure oscillation wave is obtained through label training. 9. The method according to claim 7, wherein detecting the degree of respiratory interference based on the obtained pressure shock wave includes: When the signal intensity of the obtained low-frequency signal in the pressure shock wave is higher than the preset threshold, the detection result of the degree of respiratory interference is the strong interference. 10. The method according to any one of claims 1 to 9, characterized in that the prompting method for prompting the user to hold his breath and/or breathe normally includes at least one of display, voice broadcast and vibration. 11. A blood pressure measuring device, characterized in that it includes: an air bag, an air pump, a pressure sensor, one or more processors, a memory, and one or more computer programs; Wherein, the air pump is used to inflate the air bag, and the pressure sensor is used to obtain a pressure shock wave from the air bag; the one or more computer programs are stored in the memory, and the one or A plurality of computer programs comprise instructions which, when executed by the blood pressure measuring device, cause the blood pressure measuring device to perform the method of any one of claims 1-10. 12. An electronic device, characterized in that the electronic device includes one or more processors and one or more memories; wherein the one or more memories are coupled to the one or more processors, The one or more memories are used to store computer program code, the computer program code includes computer instructions, and when the one or more processors execute the computer instructions, the electronic device performs as claimed in claims 1-10 any one of the methods. 13. A computer-readable storage medium comprising instructions, characterized in that when the instructions are run on an electronic device, the electronic device is caused to perform the method according to any one of claims 1-10.