CN116602639A

CN116602639A - Method for calibrating blood pressure measurement function and electronic equipment

Info

Publication number: CN116602639A
Application number: CN202210119230.4A
Authority: CN
Inventors: 傅小煜; 黄振龙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2023-08-18
Also published as: WO2023151396A1

Abstract

The embodiment of the application provides a method for calibrating a blood pressure measurement function and electronic equipment, and relates to the field of terminals. Firstly, the electronic equipment provided by the embodiment of the application can measure the blood pressure of a user; secondly, the method for calibrating the blood pressure measurement function can autonomously determine proper time to perform calibration, determine zero drift of the air pressure sensor, and further acquire accurate blood pressure in the process of using the blood pressure measurement function by a user.

Description

Method for calibrating blood pressure measurement function and electronic equipment

Technical Field

The present application relates to the field of terminals, and in particular, to a method and an electronic device for calibrating a blood pressure measurement function.

Background

With the development of electronic technology, the functions of electronic devices are continuously enhanced, and the electronic devices are more and more frequently participated in the daily life of consumers. For example, wearable devices such as a bracelet and a watch can provide a blood pressure measurement function, help consumers to measure own blood pressure anytime and anywhere, and further know own body conditions.

The wearable device often measures blood pressure by oscillography. The oscillometric method needs to accurately measure the air pressure value of the air bag, and then calculate the blood pressure value based on the air pressure value of the air bag and the amplitude change of the pulse signal. Since the air pressure value of the air bag is generally measured by the air pressure sensor, it is obvious that the measurement accuracy of the air pressure sensor directly affects the accuracy of the blood pressure measurement.

Professional medical equipment such as arm sphygmomanometers are often kept relatively properly by consumers or are maintained and regularly calibrated by special persons in special places such as hospitals. However, the wearable device is different from the professional medical device in use scenario, and the wearable device is used as an electronic device used at any time in daily life of a consumer, and the conditions such as collision and humidity may reduce the accuracy of the air pressure sensor on the wearable electronic device. Further, the wearable device is often not configured with a conducting air valve for communicating the air bag with the atmosphere for portability, and thus the air bag cannot be conducted with the atmosphere before each measurement of blood pressure, and the air pressure sensor cannot be calibrated before each measurement of blood pressure. The readings of the air pressure sensor that are not calibrated are inaccurate, and the blood pressure that is determined based on the readings of the air pressure sensor is also inaccurate.

After the accuracy of the air pressure sensor is reduced, the accuracy of the blood pressure measurement of the wearable equipment is also reduced, and an accurate blood pressure measurement result cannot be provided for consumers.

Disclosure of Invention

In a first aspect, an embodiment of the present application provides a data protection method, which is applied to an electronic device, where the electronic device includes: the air bag is connected with the air pump, and the air pressure sensor is used for measuring the air pressure of the air bag; the method comprises the following steps: determining one or more first deviation values based on one or more readings of the air pressure sensor, the first deviation values being indicative of zero drift of the air pressure sensor, if a first condition is met, the first condition comprising the electronic device being in an unworn state and a stationary state, or a charged state and a stationary state, or an air bag detached state and a stationary state; determining a target deviation value based on the one or more first deviation values, the target deviation value being a deviation value for participation in calculating blood pressure; in response to a first operation by a user, the air bladder is inflated by the air pump, and the blood pressure of the user is determined based on the air pressure sensor and the target deviation value.

In the above embodiment, since the electronic device is not provided with the on-valve, the electronic device actively determines a suitable time to perform calibration, and then obtains the target deviation value, so that when the user uses the electronic device to measure the blood pressure, the value of the blood pressure can be calibrated, and the accurate blood pressure can be obtained. In addition, as the electronic equipment is not provided with the on-valve, the hardware complexity of the electronic equipment is low, and the reliability of blood pressure measurement is improved.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: in response to a second operation by the user, determining whether the first condition is met, the second operation including the user clicking on a first control.

In the above embodiment, the electronic device may determine whether the calibration condition is satisfied at present in response to the operation of the user, thereby determining whether to calibrate, and improving the user experience.

With reference to some embodiments of the first aspect, in some embodiments, it is determined whether the first condition is met in response to a change in a state of the electronic device.

In the above embodiment, after the state of the electronic device changes, it may be determined whether the condition of calibration is satisfied, and further, whether to perform calibration is determined, without requiring the user to perform complicated operations, and the automatic completion of judgment and calibration improves the user experience.

With reference to some embodiments of the first aspect, in some embodiments, the determining, in response to a change in a state of the electronic device, whether the first condition is satisfied specifically includes: determining whether the electronic device is maintained in a stationary state and an airbag detached state in response to the electronic device changing from an airbag undetached state to an airbag detached state; alternatively, in response to the electronic device changing from an uncharged state to a charged state, it is determined whether the electronic device remains in a stationary state and a charged state.

In the above embodiment, when the electronic device changes from the air bag undetached state to the air bag detached state, or from the uncharged state to the charged state, the electronic device may determine whether the corresponding calibration condition is satisfied, and further determine whether to perform the calibration, without requiring the user to perform cumbersome operations, and automatically complete the judgment and the calibration, thereby improving the user experience.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: a periodic determination is made whether the first condition is satisfied.

In the above embodiment, the electronic device may periodically determine whether the calibration condition is satisfied, and further determine whether to perform the calibration, without requiring the user to perform cumbersome operations, and automatically complete the judgment and the calibration, thereby improving the user experience.

With reference to some embodiments of the first aspect, in some embodiments, after the determining one or more first deviation values based on one or more readings of the air pressure sensor if the first condition is met, before the determining a target deviation value based on the one or more first deviation values, the method further comprises: determining whether the air pressure sensor is malfunctioning based on the one or more first deviation values.

In the above embodiment, the electronic device may also determine whether the air pressure sensor is malfunctioning based on the deviation value determined in the calibration process. After the air pressure sensor breaks down, the electronic equipment can timely determine that the air pressure sensor breaks down, so that the reliability of blood pressure measurement can be ensured, and the user experience is improved.

With reference to some embodiments of the first aspect, in some embodiments, the determining, based on the one or more first deviation values, whether the air pressure sensor is faulty specifically includes: comparing the one or more first deviation values with a preset deviation threshold value; if the one or more first deviation values are smaller than a preset deviation threshold value, determining that the air pressure sensor has no fault; if the one or more first deviation values are not all smaller than a preset deviation threshold value, determining that the air pressure sensor is faulty; and/or comparing the standard deviation of the one or more first deviation values with a preset standard deviation threshold; if the standard deviation of the one or more first deviation values is smaller than the standard deviation threshold value, determining that the air pressure sensor has no fault; and if the standard deviation of the one or more first deviation values is greater than the standard deviation threshold value, determining that the air pressure sensor is faulty.

In the above embodiment, the electronic device may determine whether the air pressure sensor fails based on the statistical characteristic of the deviation value, and after the air pressure sensor fails, the electronic device may timely determine that the air pressure sensor fails, so as to ensure reliability of blood pressure measurement and improve user experience.

With reference to some embodiments of the first aspect, in some embodiments, the determining a target deviation value based on the one or more first deviation values specifically includes: the target deviation value is determined based on the one or more first deviation values in response to the first operation of the user or after the one or more first deviation values are determined.

In the above embodiment, the electronic device may determine one or more first deviation values in the calibration process, and then obtain the target deviation value based on the one or more first deviation values, so that the target deviation value approaches to the real deviation, and further obtain a more accurate blood pressure value.

With reference to some embodiments of the first aspect, in some embodiments, the determining the target deviation value based on the one or more first deviation values specifically includes: determining the one first deviation value as the target deviation value in the case that the number of the one or more first deviation values is one; and determining that the average value of the plurality of first deviation values is the target deviation value when the number of the one or more first deviation values is a plurality.

In the above embodiment, the electronic device may acquire the target deviation value based on one or more first deviation values, so that the target deviation value approaches to the real deviation, and further, a more accurate blood pressure value is obtained.

With reference to some embodiments of the first aspect, in some embodiments, the determining the target deviation value based on the one or more first deviation values specifically includes: the target deviation value is determined based on the one or more first deviation values and a historical deviation value, the historical deviation value comprising a target deviation value obtained by a calibration method of the electronic device that previously performed the blood pressure measurement function.

In the above embodiment, the electronic device may acquire the target deviation value based on one or more first deviation values and the historical deviation values, so that the target deviation value approaches to the real deviation, and further, a more accurate blood pressure value is obtained.

In a second aspect, an embodiment of the present application provides a data protection method, which is applied to an electronic device, where the electronic device includes: the air bag is connected with the air pump, and the air pressure sensor is used for measuring the air pressure of the air bag; the method comprises the following steps: displaying a first control when a first condition is met, wherein the first control is used for prompting a user that the electronic equipment is in an unworn state and a static state, or in a charging state and a static state, or in an airbag detaching state and a static state in a calibration process; after receiving a first operation of a user, displaying a second control, wherein the second control is used for displaying first data, the first data comprises the blood pressure of the user, and the blood pressure of the user is determined based on the air pressure sensor and a target deviation value; the target deviation value is a deviation value for participating in calculating a blood pressure, the target deviation value being determined in case the first condition is satisfied.

With reference to some embodiments of the second aspect, in some embodiments, the method further includes: determining one or more first deviation values based on one or more readings of the air pressure sensor if a first condition is met; determining the target bias value based on the one or more first bias values; in response to the first operation, the air bag is inflated by the air pump, and the blood pressure of the user is determined based on the air pressure sensor and the target deviation value.

In the above embodiment, the electronic device determines the target deviation value when the first condition is satisfied, and further corrects the data of the blood pressure in the process of using the blood pressure measurement function by the user, so as to obtain the accurate blood pressure.

In a third aspect, an embodiment of the present application provides an electronic device, including: the air bag is connected with the air pump, and the air pressure sensor is used for measuring the air pressure of the air bag; the electronic device includes: one or more processors and memory; the memory is coupled to the one or more processors, the memory for storing computer program code, the computer program code comprising computer instructions that the one or more processors call to cause the electronic device to perform: determining one or more first deviation values based on one or more readings of the air pressure sensor, the first deviation values being indicative of zero drift of the air pressure sensor, if a first condition is met, the first condition comprising the electronic device being in an unworn state and a stationary state, or a charged state and a stationary state, or an air bag detached state and a stationary state; determining a target deviation value based on the one or more first deviation values, the target deviation value being a deviation value for participation in calculating blood pressure; in response to a first operation by a user, the air bladder is inflated by the air pump, and the blood pressure of the user is determined based on the air pressure sensor and the target deviation value.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are further configured to invoke the computer instructions to cause the electronic device to perform: in response to a change in the state of the electronic device, a determination is made as to whether the first condition is satisfied.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are specifically configured to invoke the computer instructions to cause the electronic device to perform: determining whether the electronic device is maintained in a stationary state and an airbag detached state in response to the electronic device changing from an airbag undetached state to an airbag detached state; alternatively, in response to the electronic device changing from an uncharged state to a charged state, it is determined whether the electronic device remains in a stationary state and a charged state.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are further configured to invoke the computer instructions to cause the electronic device to perform: a periodic determination is made whether the first condition is satisfied.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are further configured to invoke the computer instructions to cause the electronic device to perform: determining whether the air pressure sensor is malfunctioning based on the one or more first deviation values.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are specifically configured to invoke the computer instructions to cause the electronic device to perform: comparing the one or more first deviation values with a preset deviation threshold value; if the one or more first deviation values are smaller than a preset deviation threshold value, determining that the air pressure sensor has no fault; if the one or more first deviation values are not all smaller than a preset deviation threshold value, determining that the air pressure sensor is faulty; and/or comparing the standard deviation of the one or more first deviation values with a preset standard deviation threshold; if the standard deviation of the one or more first deviation values is smaller than the standard deviation threshold value, determining that the air pressure sensor has no fault; and if the standard deviation of the one or more first deviation values is greater than the standard deviation threshold value, determining that the air pressure sensor is faulty.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are specifically configured to invoke the computer instructions to cause the electronic device to perform: the target deviation value is determined based on the one or more first deviation values in response to the first operation of the user or after the one or more first deviation values are determined.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are specifically configured to invoke the computer instructions to cause the electronic device to perform: determining the one first deviation value as the target deviation value in the case that the number of the one or more first deviation values is one; and determining that the average value of the plurality of first deviation values is the target deviation value when the number of the one or more first deviation values is a plurality.

With reference to some embodiments of the third aspect, in some embodiments, the one or more processors are specifically configured to invoke the computer instructions to cause the electronic device to perform: the target deviation value is determined based on the one or more first deviation values and a historical deviation value, the historical deviation value comprising a target deviation value obtained by a calibration method of the electronic device that previously performed the blood pressure measurement function.

In a fourth aspect, an embodiment of the present application provides an electronic device, including: the air bag is connected with the air pump, and the air pressure sensor is used for measuring the air pressure of the air bag; the electronic device includes: one or more processors and memory; the memory is coupled to the one or more processors, the memory for storing computer program code, the computer program code comprising computer instructions that the one or more processors call to cause the electronic device to perform: displaying a first control when a first condition is met, wherein the first control is used for prompting a user that the electronic equipment is in an unworn state and a static state, or in a charging state and a static state, or in an airbag detaching state and a static state in a calibration process; after receiving a first operation of a user, displaying a second control, wherein the second control is used for displaying first data, the first data comprises the blood pressure of the user, and the blood pressure of the user is determined based on the air pressure sensor and a target deviation value; the target deviation value is a deviation value for participating in calculating a blood pressure, the target deviation value being determined in case the first condition is satisfied.

With reference to some embodiments of the fourth aspect, in some embodiments, the one or more processors are further configured to invoke the computer instructions to cause the electronic device to perform: determining one or more first deviation values based on one or more readings of the air pressure sensor if a first condition is met; determining the target bias value based on the one or more first bias values; in response to the first operation, the air bag is inflated by the air pump, and the blood pressure of the user is determined based on the air pressure sensor and the target deviation value.

In a fifth aspect, embodiments of the present application provide a chip system for application to an electronic device, the chip system comprising one or more processors configured to invoke computer instructions to cause the electronic device to perform a method as described in the first aspect, the second aspect, and any possible implementation of the first and second aspects.

In a sixth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on an electronic device, cause the electronic device to perform a method as described in the first aspect, the second aspect, and any possible implementation of the first and second aspects.

In a seventh aspect, embodiments of the present application provide a computer readable storage medium comprising instructions which, when executed on an electronic device, cause the electronic device to perform a method as described in the first aspect, the second aspect, and any possible implementation of the first and second aspects.

It will be appreciated that the electronic device provided in the third and fourth aspects, the chip system provided in the fifth aspect, the computer program product provided in the sixth aspect, and the computer storage medium provided in the seventh aspect are all configured to perform the method provided by the embodiment of the present application. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

Drawings

Fig. 1A is an exemplary schematic diagram of a conventional electronic blood pressure monitor using method according to an embodiment of the present application.

Fig. 1B is an exemplary schematic diagram of the principle of an oscillometric method provided by an embodiment of the present application.

Fig. 1C is an exemplary schematic diagram of zero drift of the air pressure sensor 203B according to an embodiment of the present application.

Fig. 1D is an exemplary schematic diagram of an erroneous blood pressure measurement result caused by zero drift of the air pressure sensor 203B according to an embodiment of the present application.

Fig. 2A is an exemplary schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.

Fig. 2B, fig. 2C, fig. 2D, and fig. 2E are schematic diagrams illustrating an example of a hardware structure for supporting a blood pressure measurement function on an electronic device according to an embodiment of the present application.

Fig. 2F and fig. 2G are schematic diagrams illustrating another example of a hardware structure supporting a blood pressure measurement function on an electronic device according to an embodiment of the present application.

Fig. 3 is an exemplary schematic diagram of a software architecture of an electronic device according to an embodiment of the present application.

Fig. 4 is an exemplary schematic diagram of a flow of a method for calibrating a blood pressure measurement function according to an embodiment of the present application.

Fig. 5A, 5B, 5C, and 5D are schematic views illustrating an exemplary user interface on an electronic device according to an embodiment of the present application.

Fig. 6 is an exemplary schematic diagram of an electronic device according to an embodiment of the present application for identifying whether the airbag 203D is detached by a magnetic sensor.

Fig. 7 is another exemplary schematic diagram of a user interface on an electronic device according to an embodiment of the present application.

Fig. 8 is an exemplary schematic diagram of a method for determining whether a barometric sensor is faulty according to an embodiment of the application.

Fig. 9A is an exemplary schematic diagram of data flow during a method for calibrating a blood pressure measurement function according to an embodiment of the present application.

Fig. 9B is another exemplary schematic diagram of data flow during a method of calibrating a blood pressure measurement function provided by an embodiment of the present application.

Detailed Description

The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this disclosure refers to and encompasses any or all possible combinations of one or more of the listed items.

The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of embodiments of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.

The term "User Interface (UI)" in the following embodiments of the present application is a media interface for interaction and information exchange between an application program or an operating system and a user, which enables conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the user interface is a graphical user interface (graphic user interface, GUI), which refers to a user interface related to computer operations that is displayed in a graphical manner. It may be a visual interface element of text, icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, widgets, etc., displayed in a display of the electronic device.

With the development of electronic technology, electronic devices capable of performing blood pressure measurement function are developed towards intellectualization and wearable. In the following, the principle of a conventional electronic blood pressure meter and blood pressure measurement will be described first.

As shown in fig. 1A, the sphygmomanometer 1A01 includes a host computer 1A03 and a cuff 1A02.

The user may measure blood pressure using the sphygmomanometer 1a01, wherein the process of measuring blood pressure may include: first, the user wears the sleeve; then, the user starts the sphygmomanometer 1a01 to temporarily block the artery blood vessel of the arm by inflating the cuff 1a02, and then records the air pressure value of the cuff 1a02 and the pulse signal generated by the pulse in the slow deflation process; finally, the blood pressure of the user is determined based on the air pressure value of the cuff 1a02 and the amplitude or envelope of the pulse signal.

Wherein, the blood flow can generate lateral pressure to the blood vessel wall, the change of the lateral pressure can cause the blood vessel wall to slightly vibrate, and the pulse signal is a signal generated by the slight vibration of the blood vessel wall.

Wherein the blood pressure of the user is determined based on the cuff's air pressure value and the amplitude or envelope of the pulse signal, also known as oscillography. The principles of the oscillometric method are described below in exemplary fashion in connection with what is shown in fig. 1B.

As shown in fig. 1B, in the process of temporarily occluding an arm arterial vessel by inflating the cuff 1a02 by the sphygmomanometer 1a01, the state of the cuff 1a02 is gradually boosted to steady, and the arterial state is gradually occluded to complete occlusion; then during slow deflation, the cuff 1a02 is in a state of gradually decreasing pressure to 0 and the artery is in a state of being completely blocked to no blockage.

During the gradual pressure decrease to 0 in the state of the cuff 1a02, the air pressure value and pulse signal of the cuff 1a02 are recorded. When the air pressure value of the cuff 1A02 is more than or equal to the systolic pressure, the artery is blocked, and the pulse signal is tiny shock wave; when the air pressure value of the cuff 1A02 is gradually reduced and is smaller than the contraction pressure and is larger than the average pressure, the artery is gradually not blocked, and the amplitude of the pulse signal is continuously increased; when the air pressure value of the cuff 1a02 is equal to the average pressure value, the amplitude of the pulse signal reaches the maximum value; when the air pressure value of the cuff 1a02 continues to gradually decrease and is greater than the diastolic pressure and less than the average pressure, the amplitude of the pulse signal gradually decreases; when the air pressure value of the cuff 1a02 is smaller than the diastolic pressure, the pulse signal is a small shock wave.

Therefore, the sphygmomanometer 1a01 can determine the systolic and diastolic blood pressure of the user from the amplitude variation of the pulse signal and the air pressure value of the cuff 1a 02. The air pressure value and pulse signal of the cuff 1A02 can be determined by an air pressure sensor 203B (not shown in fig. 1A and 1B, and shown in fig. 1C and 2A) built in the host computer 1A03 of the sphygmomanometer 1A 01.

However, when the air pressure value of the cuff 1a02 obtained by the blood pressure meter 1a01 is inaccurate, the systolic blood pressure, the mean blood pressure, and the diastolic blood pressure calculated by the blood pressure meter 1a01 are inaccurate.

The zero drift of the air pressure sensor may cause the sphygmomanometer 1a01 to fail to accurately measure the air pressure value in the cuff 1a 02. The zero point drift and the results caused by the zero point drift will be exemplarily described below using the barometric pressure sensor 203B as a differential pressure barometric pressure sensor.

Wherein the differential pressure type air pressure sensor may include two sensing elements. Wherein one sensing element is in communication with the cuff 1a02 for measuring the air pressure in the cuff 1a 02; the other sensing element communicates with the external environment of the watch and can be used to measure atmospheric pressure. The sensing element can output electric signals with different intensities according to the change of the pressure. The differential pressure sensor can accurately determine the air pressure in the cuff 1a02 by comparing the electric signals output from the two sensing elements.

As shown in fig. 1C, when the zero drift does not occur in the air pressure sensor 203B, in the case where the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B are located in the same pressure environment, the reading of the air pressure sensor 203B is 0; however, when the zero point shift occurs in the air pressure sensor 203B, the reading of the air pressure sensor 203B is not 0 in the case where the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B are located in the same pressure environment.

The specific description of the sensing element 203B1 and the sensing element 203B2 may refer to the text description corresponding to fig. 2F, which is not repeated herein.

The air pressure sensor 203B may have zero drift due to device aging and device damage of the air pressure sensor 203B.

After the zero point shift of the air pressure sensor 203B occurs, the air pressure sensor 203B cannot accurately measure the air pressure in the cuff 1a02 during the blood pressure measurement by the user.

For example, when the sensing element 203B1 and the sensing element 203B2 are located in the same pressure environment, the reading of the air pressure sensor 203B is 5mmHg, that is, the zero point drift of the air pressure sensor 203B is 5mmHg. During the process of measuring blood pressure by the user, the pressure of the balloon is ammmg, and the reading of the air pressure sensor 203B is a+5mmHg, which results in erroneous blood pressure results as shown in fig. 1D below.

After the zero point shift of the air pressure sensor 203B occurs, the air pressure sensor 203B cannot accurately measure the pressure in the cuff 1a02 during the process of measuring the blood pressure by the user.

As shown in fig. 1D, when the air pressure sensor 203B has zero-point drift, the air pressure value of the cuff 1a02 supplied from the air pressure sensor 203B to the processor in the host computer 1a03 is erroneous. The processor in the host 1a03 will obtain the wrong systolic pressure, the wrong average pressure, the wrong diastolic pressure from the wrong cuff 1a02 air pressure value.

One possible solution is: the air pressure sensor 203B of the sphygmomanometer 1a01 is calibrated before measuring the blood pressure, and the zero point drift of the air pressure sensor 203B is determined.

For the differential pressure type air pressure sensor 203B, the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B need to be placed in the same air pressure environment to complete calibration, which requires a more complex hardware structure design of the sphygmomanometer.

For example, arm sphygmomanometers tend to add one or more on-gas valves for conducting the sensing element 203B1 of the air pressure sensor 203B to the external environment. Before a user uses the wall-mounted sphygmomanometer to measure blood pressure, the wall-mounted sphygmomanometer can actively open the air valve, so that the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B sense the same atmospheric pressure, and further calibration of the air pressure sensor 203B is completed, and zero drift of the air pressure sensor 203B is determined. After the calibration is completed, the arm sphygmomanometer performs a blood pressure measurement function.

However, for wearable devices, complex hardware structural designs can reduce portability of the wearable device; further, due to the complex usage scenario of the wearable device, such as collision, humidity, etc., the increased one or more on-gas valves may increase the failure rate of the wearable device.

In combination with the above, for wearable devices, the addition of one or more on-gas valves may reduce the portability of the wearable device and the newly added hardware structure itself may also fail. For example, when the on-valve itself fails, so that the sensing element 203B1 and the sensing element 203B2 are located in the environment with different pressures, after the calibration is performed on the air pressure sensor 203B, the electronic device may obtain the zero drift of the air pressure sensor 203B, and the blood pressure measured by the user using the electronic device is the wrong blood pressure.

For example, the zero drift of the air pressure sensor 203B is ammmhg, and in the case of the on-valve failure, calibration is performed in the case where the sensing element 203B1 and the sensing element 203B2 are located in environments of different pressures, and the resulting erroneous zero drift is bbmmhg. In the process of measuring the blood pressure by the user, the electronic device acquires the reading of the air pressure sensor as CmmHg, and then the electronic device determines that the pressure of the cuff 1A02 is C-BmmHg and the real pressure of the cuff 1A02 is C-AmmmHg.

In order to solve the problem, the embodiment of the application provides a method for calibrating a blood pressure measurement function and electronic equipment.

Next, a method and an electronic device for calibrating a blood pressure measurement function according to embodiments of the present application are described below. Hereinafter, a hardware structure and a software architecture of the electronic device are described first, and then a flow of a method for executing the function of calibrating blood pressure measurement by the electronic device is described.

In the hardware structure part of the electronic device, firstly, the whole hardware structure of the electronic device is introduced, and then, the hardware structure supporting the blood pressure measuring function is introduced.

As shown in fig. 2A, the electronic device may be a wearable device such as a wristband, a wristwatch, etc., or a non-wearable device such as a wall sphygmomanometer, etc. The embodiment of the application does not limit the specific type of the electronic device.

The electronic device may include: processor 200, wireless communication module 201, mobile communication module 202, sensor module 203, keys 204, display 205, motor 206, internal memory 207, SIM card interface 208, USB interface 209, power management module 210, battery 211, and charge management module 212. The sensor module 203 may include a touch sensor 203A, an air pressure sensor 203B, an air pump 203C, and an air pump 203D, among others. Wherein the bladder 203D functions similarly to the cuff 1a 02.

It should be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the electronic device. In other embodiments of the application, the electronic device may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 200 may include one or more processing units, such as: the processor 200 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

In some embodiments, processor 200 may include one or more interfaces. The interfaces may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others.

In some embodiments, the processor 200 may also be a micro-processing unit (mircrocontroller unit, MCU).

The I2C interface is a bi-directional synchronous serial bus comprising a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, the processor 200 may contain multiple sets of I2C buses. The processor 200 may be coupled to the touch sensor 203A, the power management module 210, etc., respectively, through different I2C bus interfaces. For example: the processor 200 may be coupled to the touch sensor 203A through an I2C interface, so that the processor 200 and the touch sensor 203A communicate through an I2C bus interface to implement a touch function of the electronic device.

The I2S interface may be used for audio communication. PCM interfaces may also be used for audio communication to sample, quantize and encode analog signals. The UART interface is a universal serial data bus for asynchronous communications. The bus may be a bi-directional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is typically used to connect the processor 200 with the wireless communication module 201. For example: the processor 200 communicates with a bluetooth module in the wireless communication module 201 through a UART interface to implement a bluetooth function.

The MIPI interface may be used to connect the processor 200 to peripheral devices such as the display 205. The MIPI interfaces include camera serial interfaces (camera serial interface, CSI), display serial interfaces (display serial interface, DSI), and the like. The processor 200 and the display screen 205 communicate via a DSI interface to implement the display function of the electronic device.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or as a data signal. The USB interface 209 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 209 may be used to connect a charger to charge an electronic device, or may be used to transfer data between the electronic device and a peripheral device.

It should be understood that the connection relationship between the modules illustrated in the embodiments of the present application is only illustrative, and does not limit the structure of the electronic device. In other embodiments of the present application, the electronic device may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The charge management module 212 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 212 may receive a charging input of the wired charger through the USB interface 209. In some wireless charging embodiments, the charge management module 212 may receive wireless charging input through a wireless charging coil of the electronic device. The charging management module 212 may also be configured to provide power to the electronic device through the power management module 210 while charging the battery 211.

The power management module 210 is used for connecting the battery 211, the charging management module 212 and the processor 200. The power management module 210 receives input from the battery 211 and/or the charge management module 212 and provides power to the processor 200, the internal memory 207, the display 205, the wireless communication module 201, and the like. The power management module 210 may also be configured to monitor battery capacity, battery cycle times, battery health (leakage, impedance), and other parameters. In other embodiments, the power management module 210 may also be disposed in the processor 200. In other embodiments, the power management module 210 and the charge management module 212 may be disposed in the same device.

The wireless communication function of the electronic device may be implemented by the mobile communication module 202, the wireless communication module 201, a modem processor, a baseband processor, and the like.

The mobile communication module 202 may provide a solution for wireless communication including 2G/3G/4G/5G, etc. applied on an electronic device. The mobile communication module 202 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 202 may receive electromagnetic waves from an antenna, filter, amplify, and the like the received electromagnetic waves, and transmit the electromagnetic waves to a modem processor for demodulation. In some embodiments, at least some of the functional modules of the mobile communication module 202 may be disposed in the processor 200. In some embodiments, at least some of the functional modules of the mobile communication module 202 may be provided in the same device as at least some of the modules of the processor 200.

The wireless communication module 201 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc. for application on an electronic device. The wireless communication module 201 may be one or more devices that integrate at least one communication processing module. The wireless communication module 201 receives electromagnetic waves via an antenna, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 200. The wireless communication module 201 may also receive a signal to be transmitted from the processor 200, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via an antenna.

The keys 204 include a power on key, a volume key, etc. The keys 204 may be mechanical keys. Or may be a touch key. The electronic device may receive key inputs, generating key signal inputs related to user settings and function controls of the electronic device.

The display screen 205 is used to display images, videos, and the like. The display 205 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the electronic device may include 1 or N display screens 205, N being a positive integer greater than 1.

The motor 206 may generate a vibration alert. The motor 206 may be used for incoming call vibration alerting as well as for touch vibration feedback. For example, touch operations acting on different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 206 may also correspond to different vibration feedback effects by touching different areas of the display 205.

The internal memory 207 may include one or more random access memories (random access memory, RAM) and one or more non-volatile memories (NVM).

The random access memory may include a static random-access memory (SRAM), a dynamic random-access memory (dynamic random access memory, DRAM), a synchronous dynamic random-access memory (synchronous dynamic random access memory, SDRAM), a double data rate synchronous dynamic random-access memory (double data rate synchronous dynamic random access memory, DDR SDRAM, such as fifth generation DDR SDRAM is commonly referred to as DDR5 SDRAM), etc.;

the nonvolatile memory may include a disk storage device, a flash memory (flash memory). The FLASH memory may include NOR FLASH, NAND FLASH, 3D NAND FLASH, etc. divided according to an operation principle, may include single-level memory cells (SLC), multi-level memory cells (MLC), triple-level memory cells (TLC), quad-level memory cells (QLC), etc. divided according to a storage specification, may include universal FLASH memory (english: universal FLASH storage, UFS), embedded multimedia memory cards (embedded multi media Card, eMMC), etc. divided according to a storage specification. Random access memory may be read directly from and written to by processor 200, may be used to store executable programs (e.g., machine instructions) for an operating system or other on-the-fly programs, may also be used to store data for users and applications, and the like. The nonvolatile memory may store executable programs, store data of users and applications, and the like, and may be loaded into the random access memory in advance for the processor 200 to directly read and write.

The SIM card interface 208 is used to connect a SIM card. The SIM card may be inserted into the SIM card interface 208 or removed from the SIM card interface 208 to enable contact and separation with the electronic device. The electronic device may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 208 may support Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 208 may be used to insert multiple cards simultaneously. The types of the plurality of cards may be the same or different. The SIM card interface 208 may also be compatible with different types of SIM cards. The SIM card interface 208 may also be compatible with external memory cards. The electronic equipment interacts with the network through the SIM card, so that the functions of communication, data communication and the like are realized. In some embodiments, the electronic device employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the electronic device and cannot be separated from the electronic device.

The touch sensor 203A is also referred to as a "touch device". The touch sensor 203A may be disposed on the display 205, and the touch sensor 203A and the display 205 form a touch screen, which is also referred to as a "touch screen". The touch sensor 203A is for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display 205. In other embodiments, the touch sensor 203A may also be disposed on a surface of the electronic device at a different location than the display 205.

The air pressure sensor 203B is for measuring air pressure. In some embodiments of the application, the electronics measure the air pressure in the air bag 203D via the air pressure sensor 203B. In some embodiments of the present application, a portion of the components of the air pressure sensor 203B are located inside the air bag 203D for sensing the air pressure of the air bag 203D.

The air pump 203C is used for inflation and deflation. In some embodiments of the present application, the electronic device inflates the bladder 203D via the air pump 203C, wherein the air pump 203C and bladder 203D are connected via the air path conduction assembly 203E. The balloon 203D is used to squeeze the blood vessel of the user, similar to the function of the cuff 1A02 in fig. 1A.

The magnetic sensor 203F includes a hall sensor. In some embodiments of the application, the electronic device may utilize the magnetic sensor 203F to determine whether the air bag 203D on the electronic device is detached. For example, a magnet may be provided on the air bag 203D or on a watchband to which the air bag 203D is attached, and the electronic device may determine the magnetic flux generated by the magnet on the air bag 203D or on the air bag 203D by a magnetic sensor, and thus determine whether the air bag 203D on the electronic device is detached.

It should be noted that, the air passage assembly 203E may be a single assembly, or the air passage assembly 203E may be an air passage formed by combining other hardware modules, or the air passage assembly 203E may be a part of other assemblies, for example, may be a part of the air pump 203C, and may be a part of the air bag 203D.

It should be noted that the sensor module 203 may further include an acceleration sensor, an infrared sensor, and the like.

Having described the overall hardware structure of the electronic device, an exemplary hardware structure of the electronic device that supports blood pressure measurement functions is described, as shown in fig. 2B, 2C, 2D, and 2E.

As shown in fig. 2B, when the electronic device is a smart watch, the airbag 203D is attached to the body-approaching side of the wristband. The air pump 203C is connected to the air bag 203D through the air passage conduction assembly 203E. Wherein the balloon 203D may be attached to only one side band, which may be located above the arterial location of the user's wrist, such as above the radial artery location.

Wherein, the air pump 203C may be located inside the watch body of the smart watch, the air bag 203D may be connected with the watchband through a buckle, and the air bag 203D is connected with the dial plate through an air hole cover 203G1 (as shown in fig. 2C below). Correspondingly, the air bag 203D may be separated from the wristband or may be separated from the dial.

As shown in fig. 2C, the dial has a groove 203H on the back surface thereof corresponding to the vent cover 203G1 and the vent cover 203G 2. The vent cover 203G2 is not connected to the airbag 203D, and the vent cover 203G1 is connected to the airbag 203D.

When the user does not need to use the blood pressure measuring function of the electronic device, the air bag 203D may be detached and then a separate air hole cover 203G2 may be attached. Because the groove 203H has the interface of the air path conducting component 203E, the user can install an independent air hole cover after detaching the air bag 203D, so as to prevent dust and particles from entering the meter body through the interface of the air path conducting component 203E, as shown in fig. 2D.

When the user needs to use the blood pressure measuring function of the electronic device, the air bag can be fixed on the inner side of the watchband through the buckle on the watchband, and then the air bag is connected with the dial through the air hole cover 203G1 and the groove 203H. The vent cover 203G1 also has an interface of the air passage conduction assembly 203E, which interfaces with the interface of the air passage conduction assembly 203E in the groove 203H, so that the air pump 203C can inflate the air bag 203D, as shown in fig. 2E.

As shown in fig. 2D, when the user removes the air bag 203D and installs the separate air hole cover 203G2, the electronic device is similar to a general wristwatch. As shown in fig. 2E, the user can detach the separate air hole cover 203G2 and then install the air bag 203D.

As shown in fig. 2F, the air pressure sensor 203B includes two sensing elements, respectively: sensing element 203B1, sensing element 203B2. The sensing element 203B1 may be located in the air path conducting assembly or in the air bag 203D, as shown in fig. 2G. Wherein the sensing element 203B2 may be in communication with the atmosphere. That is, the sensing element 203B1 is used to measure the air pressure in the air bag 203D, and the sensing element 203B2 is used to measure the atmospheric pressure of the current environment.

It should be noted that, when the sensing element 203B1 is located in the air path conducting assembly, the sensing element 203B1 may be located inside the dial. It should be noted that, when the sensing element 203B1 is located in the air bag 203D, the groove is further provided with a contact for transmitting a signal, so as to collect the electrical signal change generated by the pressure change of the sensing element.

It should be noted that, in conjunction with the description of fig. 2B to 2F, after the user removes the air bag 203D, that is, when the groove 203H of the dial of the electronic device is not connected to any air hole cover, or the groove 203H is connected to the separate air hole cover 203G2, the electronic device is in the air bag removed state.

After the hardware architecture of the electronic device is introduced, the software architecture of the electronic device is described below.

The layered architecture divides the software into several layers, each with distinct roles and branches. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, an application layer, an application framework layer, an Zhuoyun row (Android run) and system libraries, and a kernel layer, respectively.

The application layer may include a series of application packages.

As shown in FIG. 3, the application package may include calendar, map, navigation, WLAN, bluetooth, blood pressure measurement applications, and the like applications.

The application framework layer provides an application programming interface (application programming interface, API) and programming framework for application programs of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 3, the application framework layer may include a window manager, a content provider, a view system, a telephony manager, a resource manager, a notification manager, and the like.

The window manager is used for managing window programs. The window manager can acquire the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make such data accessible to applications. The view system includes visual controls, such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, a display interface including a text message notification icon may include a view displaying text and a view displaying a picture. The telephony manager is for providing communication functions of the electronic device. Such as the management of call status (including on, hung-up, etc.). The resource manager provides various resources for the application program, such as localization strings, icons, pictures, layout files, video files, and the like. The notification manager allows the application to display notification information in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification manager is used to inform that the download is complete, message alerts, etc. The notification manager may also be a notification in the form of a chart or scroll bar text that appears on the system top status bar, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, a text message is prompted in a status bar, a prompt tone is emitted, the electronic device vibrates, and an indicator light blinks, etc.

Android run time includes a core library and virtual machines. Android run time is responsible for scheduling and management of the Android system.

The core library consists of two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. The virtual machine executes java files of the application program layer and the application program framework layer as binary files. The virtual machine is used for executing the functions of object life cycle management, stack management, thread management, security and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface manager (surface manager), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), etc. The surface manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications. Media libraries support a variety of commonly used audio, video format playback and recording, still image files, and the like. The media library may support a variety of audio and video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc. The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like. The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The sensor drive includes a drive of the air pressure sensor 203B, a drive of the air pump 203C, and a drive of the magnetic sensor 203F. Wherein the electronics can take readings of the air pressure sensor 203B by actuation of the air pressure sensor 203B.

Again, a method for calibrating the blood pressure measurement function provided by the embodiment of the present application will be described.

The electronic device first determines whether the electronic device itself currently satisfies a first condition. If the electronic device satisfies the first condition, the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B are considered to be located in the same pressure environment, for example, the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B are both open to the atmosphere.

The first condition may include, among other things, the electronic device being in an airbag detached state, a charged state, a resting state, or an unworn state.

After the electronic device determines that the first condition is met, one or more first deviation values may be determined by recording the readings of the air pressure sensor, and in the process that the user uses the blood pressure measurement function provided by the electronic device next time, the readings of the air pressure sensor 203B are corrected based on the one or more first deviation values measured previously, so as to obtain the pressure of the air bag 203D, and then the accurate blood pressure is calculated. The first deviation value is the deviation caused by the zero drift of the air pressure sensor 203B.

Alternatively, the electronics can also modify the readings of the air pressure sensor 203B based on the historical deviation value and the one or more first deviation values. Wherein the historical deviation values comprise one or more first deviation values obtained by performing calibration on the electronic device.

Alternatively, the electronic device may also determine the target deviation value based on one or more first deviation values, and then directly correct the blood pressure by directly determining the blood pressure deviation value based on the target deviation value without correcting the reading of the air pressure sensor 203B.

It will be appreciated that since the electronic device is not provided with a gas-passing valve for passing the air bag 203D and the external environment, the electronic device needs to actively determine what conditions the pressure and the atmospheric pressure of the air bag 203D are the same, and thus perform calibration. After calibration, the electronic device obtains one or more first deviation values, and then the zero drift of the air pressure sensor when the user measures the blood pressure by using the electronic device can be predicted based on the one or more first deviation values, so that the zero drift of the air pressure sensor can be compensated, and the accurate blood pressure can be calculated.

In the method for calibrating a blood pressure measurement function according to the embodiment of the present application, second, whether the air pressure sensor 203B fails may be determined based on the first deviation value and/or the historical deviation value. If the air pressure sensor 203B of the electronic device fails, the user is prompted that the blood pressure measurement function of the electronic device fails, so that the user timely senses the running state of the electronic device, and the user experience is guaranteed.

For example, the electronic device may determine whether the air pressure sensor 203B is malfunctioning by obtaining one or more first deviation values from the statistical characteristics of the historical deviation values and performing calibration this time. For example, when the variance of the plurality of first deviation values is greater than the variance threshold, the electronic device may determine that the air pressure sensor 203B is malfunctioning; alternatively, and for another example, when the average of the plurality of first deviation values is greater than the average threshold, the electronic device may determine that the air pressure sensor 203B is malfunctioning. The variance threshold and the mean threshold can be obtained through calculation of a historical deviation value, can be preset on electronic equipment, and can be obtained synchronously with a cloud.

The following describes an exemplary method for calibrating a blood pressure measurement function according to an embodiment of the present application with reference to fig. 4.

As shown in fig. 4, the flow of the method for calibrating a blood pressure measurement function according to the embodiment of the present application includes:

s401: the electronic device determines whether the first condition is satisfied in response to a user interaction, in response to a change in a state of the electronic device, or periodically.

Responding to the interaction of the user, and judging whether a first condition is met by the electronic equipment; or in response to a change in the state of the electronic device; or, the electronic device periodically determines whether the first condition is satisfied. After the electronic device determines that the first condition is met, the electronic device executes step S403; when the electronic device determines that the first condition is not satisfied, the electronic device executes step S402.

Alternatively, in some embodiments of the present application, the first condition may include a plurality of conditions. Optionally, in some embodiments of the present application, in a case where the first condition includes a plurality of conditions, the electronic device determines that any one of the conditions is satisfied, and considers that the first condition is satisfied. Alternatively, in some embodiments of the present application, the electronic device determines that a plurality of conditions in the first condition are satisfied and considers that the first condition is satisfied.

Alternatively, in some embodiments of the present application, the first condition or any one of the first conditions may be whether the electronic device is in a certain state, such as a stationary state, a charged state, a user unworn state, an airbag detached state.

Alternatively, in some embodiments of the present application, the first condition or any one of the first conditions may be that the electronic device is in an airbag detached state and a stationary state; alternatively, the first condition may be that the electronic device is in a charged state; alternatively, the first condition may be that the electronic device is in a stationary state and an unworn state.

The stationary state may be that the electronic device is stationary for a period of time, such as 5 seconds, 15 seconds, 2 minutes, etc., wherein the stationary state may be determined by an acceleration sensor. The state of charge may be that the electronic device is continuously charged for a period of time, such as 5 seconds, 15 seconds, 2 minutes, etc., and the stationary state may be determined by the power management module and/or the charging module.

It will be appreciated that when the electronic device is in a motion state (non-stationary state), the air pressure may change in accordance with bernoulli's principle in the event that the speed of the electronic device is greater than a certain speed threshold. Even if the sensing elements 203B1 and 203B2 of the air pressure sensor 203B are both in communication with the external environment of the electronic device, the air pressures sensed by the sensing elements 203B1 and 203B2 of the air pressure sensor 203B are different, or the air pressures sensed by the sensing elements 203B1 and 203B2 of the air pressure sensor 203B are varying, which results in that the readings of the air pressure sensor 203B cannot truly reflect the zero point drift of the air pressure sensor.

When the electronic device is a wristwatch, the unworn state may be a state in which the user is not wearing the electronic device, wherein the unworn state may be determined by the infrared sensor. The airbag detachment state can be described with reference to the corresponding text of fig. 2C, 2D, and 2E, and will not be described again here.

It should be noted that when the electronic device satisfies the first condition, the sensing elements 203B1 and 203B2 of the air pressure sensor 203B may be considered to be both in the same pressure environment. That is, when the electronic apparatus is in any one or more of a stationary state, a charged state, an unworn state, and an airbag detached state, the sensing element 203B1 is in communication with the atmosphere.

More specifically, when the electronic device is in a charged state, the electronic device is often stationary and not worn by the user, and at this time, it may be considered that the sensing elements 203B1 and 203B2 of the air pressure sensor 203B are both in communication with the external environment of the electronic device, and are both in the environment of the same pressure; when the electronic device is in an unworn state, the air bag 203D is not extruded by a user, the pressure of the air bag 203D is stable, and the sensing elements 203B1 and 203B2 of the air pressure sensor 203B can be considered to be communicated with the external environment of the electronic device and are all located in the environment with the same pressure; when the electronic device is in the air bag detached state, the sensing elements 203B1 and 203B2 of the air pressure sensor 203B are both in communication with the external environment of the electronic device and are both located in the environment with the same pressure, and reference may be made to the text descriptions corresponding to fig. 2F and 2G above.

Alternatively, in some embodiments of the present application, a period threshold may also be configured. The period threshold is the minimum time interval between two calibrations. It can be appreciated that by configuring the period threshold for configuring the electronic device, frequent calibration of the air pressure sensor 203B by the electronic device is avoided, reducing power consumption of the electronic device.

Three trigger occasions for the electronic device to determine whether the first condition is satisfied are described below.

(1) In response to a user interaction, the electronic device determines whether a first condition is satisfied.

Wherein the user interaction includes the user clicking on control 504.

As shown in fig. 5A, the user interface displayed on the display 205 of the electronic device includes a control 501 and a control 502. Wherein control 501 and control 502 may be portal controls for different applications/functions. In fig. 5A, the text on control 501 is "blood pressure measurement" for indicating that control 501 is an entry to a blood pressure measurement application or function; in fig. 5A, the text on control 502 is "heart rate measurement" to indicate that control 502 is the portal to a heart rate measurement application or function.

After the user clicks control 501, the user interface on the electronic device is shown in FIG. 5B.

As shown in fig. 5B, the user interface displayed on the display 205 of the electronic device includes a control 503 and a control 504. Where the text on control 503 is "begin measurement" and the text on control 504 is "measure calibration". Wherein the user may begin measuring blood pressure by clicking control 503; the user may click on control 504 to cause the electronic device to begin executing the method of calibrating the blood pressure measurement function provided by embodiments of the present application.

In response to the user clicking on control 504, the electronic device performs a method of calibrating blood pressure measurement functionality provided by embodiments of the present application. The electronic device first executes step S401 to determine whether a first condition is satisfied. When the first condition is judged not to be satisfied, the electronic device may display a user interface as shown in fig. 5C. When the first condition is judged to be satisfied, the electronic device may display a user interface as shown in fig. 5D.

As shown in fig. 5C, the user interface displayed on the display 205 of the electronic device includes a control 505. Wherein control 505 is used to prompt the user that the current electronic device is not capable of performing calibration on the blood pressure measurement function, i.e., is not capable of performing calibration on air pressure sensor 203B. Wherein control 505 includes an icon and text, the text being "currently not meeting the calibration condition-! "wherein the calibration condition is the first condition in the embodiment of the present application.

As shown in fig. 5D, the user interface displayed on the display 205 of the electronic device includes a control 506. Control 506 is used to prompt the user that the electronic device is currently performing calibration on the blood pressure measurement function, i.e., on air pressure sensor 203B. The control 506 includes an icon and text, and the text is "do not move during blood pressure measurement calibration".

The user interfaces shown in fig. 5A, 5B, 5C, and 5D are only used to illustrate a part of the user interfaces of the method for performing the function of calibrating blood pressure measurement by the electronic device according to the embodiment of the present application, and do not limit any user interfaces that can be presented by the method for performing the function of calibrating blood pressure measurement by the electronic device according to the embodiment of the present application.

(2) In response to a change in the state of the electronic device, the electronic device determines whether a first condition is satisfied.

The change in the state of the electronic device includes: from an uncharged state to a charged state, from a moving state to a stationary state, from an airbag undetached state to an airbag detached state, etc.

It should be noted that, the detachment state of the air bag may be determined by the magnetic sensor, and specific reference may be made to the text description corresponding to fig. 6 below, which is not repeated here.

For example, in response to the electronic device changing from an uncharged state to a charged state, the electronic device determines whether the first condition is satisfied. The first condition is that the electronic device is in a charged state and a stationary state. When the electronic device is charged for 5 minutes, and the electronic device itself does not move within the 5 minutes, the electronic device determines that the first condition is satisfied.

For another example, in response to the electronic device changing from the airbag undetached state to the airbag detached state, the electronic device determines whether a first condition is satisfied, the first condition being that the electronic device is in the airbag detached state and in the stationary state. In the case where the electronic apparatus is not moved and is maintained in the air bag detached state for 5 minutes, the electronic apparatus determines that the first condition is satisfied.

As shown in fig. 6, the magnetic device 1 is mounted on the airbag 203D, and the magnetic device 2 is mounted on the vent cover 203G1 and the vent cover 203G 2. When the air bag 203D is connected to the electronic device, the electronic device is connected to the air bag 203D through the air hole cover 203G1, and the electronic device determines the magnetic flux as a through the magnetic sensor 203F. When the airbag 203D is detached, the electronic apparatus determines the magnetic flux as B by the magnetic sensor 203F after the separate air hole cover 203G2 is attached. When the air bag 203D is detached and the air hole cover 203G2 is not yet installed, the electronic apparatus determines the magnetic flux as C by the magnetic sensor 203F. Wherein C may be equal to 0.

It should be noted that, in consideration of the large difference in circumference of wrists of different users, the electronic device may have a plurality of watchbands, and each watchband is connected to an airbag 203D of a different size by a buckle. Wherein, the air bags 203D with different sizes can be provided with the magnetic devices 1 which can generate different magnetic field intensities, so that the electronic equipment can distinguish the air bags 203D on the current electronic equipment through the magnetic sensor 203F.

(3) Periodically, the electronic device determines whether the first condition is satisfied

The electronic device may periodically determine whether the first condition is satisfied. After the electronic device determines that the first condition is met, the electronic device executes step S403; when the electronic device determines that the first condition is not satisfied, the electronic device executes step S402.

S402: during the process of measuring the blood pressure by the user, the blood pressure of the user is determined based on the reading of the air pressure sensor 203B and the historical deviation value.

When the electronic device determines that the first condition is not satisfied, the electronic device temporarily does not perform calibration on the air pressure sensor 203B because the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B are not under the same pressure environment.

After the user uses the function of measuring blood pressure, the electronic device may determine the blood pressure of the user based on the historical deviation value and the reading of the air pressure sensor 203B; alternatively, if no calibration of the electronic device has been performed at a time, the electronic device may determine the user's blood pressure based on the readings of the air pressure sensor 203B.

The method for determining the blood pressure of the user may refer to the text description corresponding to fig. 1B, which is not repeated herein.

S403: the blood pressure measured by the user this time is displayed on the display screen 205 and/or the blood pressure data of the user is transferred to other electronic devices.

The electronic device may display the blood pressure measured by the user this time on the display screen 205 and/or transfer the blood pressure data of the user to other electronic devices.

The user interface for the electronic device to display the blood pressure measured by the user this time is shown in fig. 7.

After the electronic device determines the blood pressure of the user based on the oscillometric method, the blood pressure that can be determined is presented on the display screen 205 of the electronic device. As shown in fig. 7, the content presented by the electronic device in the user interface displayed on the display screen 205 includes: the high pressure was 97mmHg and the low pressure was 65mmHg.

When the electronic device is a wristwatch, the other electronic device may be a terminal such as a mobile phone. Other electronic devices can record historical blood pressure data of the user, and further, the physical condition of the user can be estimated more accurately based on the historical blood pressure data.

S404: a reading of the air pressure sensor 203B is acquired and recorded, and a first deviation value is determined based on the reading of the air pressure sensor 203B.

After determining that the first condition is satisfied, the electronic device obtains and records a reading of the air pressure sensor 203B because the sensing element 203B1 and the sensing element 203B2 of the air pressure sensor 203B are under the same pressure environment, and determines a first deviation value based on the reading of the air pressure sensor 203B. The first deviation value is zero drift of the air pressure sensor.

Alternatively, in some embodiments of the application, the first deviation value may be determined based on one or more readings of the air pressure sensor 203B.

Alternatively, in some embodiments of the application, the first offset value is equal to the reading of air pressure sensor 203B.

Alternatively, in some embodiments of the application, multiple readings of the air pressure sensor 203B may be recorded, and then the first deviation value determined based on the multiple readings of the air pressure sensor 203B. For example, if it takes 5 seconds to record the reading of the air pressure sensor 203B once, step S404 may last for 50 seconds, and record the reading of the air pressure sensor 203B 10 times, that is, 10 deviations may be obtained, and then the electronic device takes the average value of the 10 deviations as the first deviation value.

Alternatively, in some embodiments of the present application, the time of measurement may be recorded at the same time as the readings of the air pressure sensor 203B are recorded.

S405: it is determined whether the air pressure sensor 203B is malfunctioning based on the first deviation value.

After determining the first deviation value, the electronic device may determine whether the air pressure sensor 203B is malfunctioning based on the first deviation value. If yes, the electronic device executes step S406; if not, the electronic device executes step S407.

The electronic device may be preconfigured with a rule for determining that the air pressure sensor 203B is malfunctioning. Wherein the rule may also be synchronized with the cloud. The electronics determine whether the air pressure sensor 203B is malfunctioning based on the rule and the first deviation value. Some examples of the rules are described below by way of example.

Alternatively, in some embodiments of the present application, the electronic device may compare the first deviation value to a deviation threshold. When the first deviation value is smaller than the deviation threshold value, the electronic device determines that the air pressure sensor 203B has no fault; when the first deviation value is equal to or greater than the deviation threshold value, the electronic device determines that the air pressure sensor 203B is faulty.

Alternatively, in some embodiments of the present application, the electronic device may obtain multiple readings of the air pressure sensor 203B, and may obtain multiple first deviation values, and then determine whether the air pressure sensor 203B is faulty according to the standard value of the first deviation values. When the standard deviation is greater than the standard deviation threshold, the air pressure sensor 203B may be considered to be malfunctioning; when the standard deviation is smaller than the standard deviation threshold value, it can be considered that the air pressure sensor 203B has no failure.

It should be noted that, in the embodiment of the present application, the deviation threshold and the standard deviation threshold may be a value preset in the electronic device, or may be a value that is synchronized with the cloud. Alternatively, the deviation threshold and standard deviation threshold may be a variable related to a time difference, where the time difference is a difference between a system time and a factory time on the electronic device.

Alternatively, in some embodiments of the present application, the electronic device may determine whether the air pressure sensor 203B is malfunctioning based on the first deviation value and the historical deviation value. For example, the statistical characteristics of the deviation values may be determined based on the data in the historical deviation values, and then a determination may be made as to whether one or more of the first deviation values determined in step S404 meet the statistical characteristics of the deviation values, thereby determining whether the air pressure sensor 203B is malfunctioning. For example, the statistical characteristic in the historical deviation values may be a gaussian distribution, and the first deviation may not be a gaussian distribution in the event of a failure of the air pressure sensor 203B.

The following exemplary description determines whether the air pressure sensor 203B is malfunctioning based on the first deviation value and the historical deviation value.

S801: and judging whether the first deviation value is larger than or equal to a deviation threshold value.

The electronic device determines whether the first deviation value is greater than a deviation threshold. When the first deviation value is greater than or equal to the deviation threshold, step S802 is executed; when the first deviation value is smaller than the deviation threshold value, step S803 is performed.

S802: the electronics determine that the air pressure sensor 203B is malfunctioning or discard the present data.

Alternatively, in some embodiments of the present application, when the first deviation value is greater than or equal to the deviation threshold, the electronic device determines that the air pressure sensor 203B is malfunctioning, and stops providing the relevant function based on the air pressure sensor 203B, such as the blood pressure measurement function, to the user.

Optionally, in some embodiments of the present application, step S404 is performed again or multiple times when the first deviation value is greater than or equal to the deviation threshold. In the case where at least one or more of the plurality of first deviation values measured a plurality of times is greater than the deviation threshold value, the electronic device determines that the air pressure sensor 203B is malfunctioning, and stops providing the relevant function based on the air pressure sensor 203B, such as the blood pressure measurement function, to the user.

Alternatively, in some embodiments of the present application, the present data may be discarded when the first deviation value is greater than or equal to the deviation threshold. Wherein the first deviation value is not recorded into the historical deviation value.

Alternatively, in some embodiments of the present application, when the first deviation value is greater than or equal to the deviation threshold, the present data may be discarded, and step S404 is performed again to redefine the first deviation value. Wherein the first deviation value is not recorded into the historical deviation value.

It can be understood that the first deviation value obtained by this measurement is discarded, so that the accuracy of the data in the pollution history deviation value can be avoided, and further, when the electronic device executes the subsequent step S407, a more accurate target deviation value can be obtained. The target deviation value is a deviation value participating in calculating blood pressure.

S803: a probability distribution of bias values is determined based on the historical bias values, and a confidence level for the first bias value is calculated.

The probability distribution of bias values is determined based on the historical bias values, and after the probability distribution of bias values is determined, the confidence level of the first bias value may be determined based on the probability distribution of bias values. The probability of the first deviation value in the probability distribution of the deviation value can be used as the confidence of the first deviation value.

For example, the probability distribution of the deviation value is a gaussian distribution with a mean value that becomes larger with time and a standard deviation that becomes larger with time, and after the first deviation value is obtained, the probability of the first deviation value may be determined, so as to determine the confidence of the first deviation value.

S804: and judging whether the confidence coefficient of the first deviation value is larger than a confidence coefficient threshold value.

And judging whether the confidence coefficient of the first deviation value is larger than a confidence coefficient threshold value. If yes, go to step S805; if not, step S806 is performed.

S805 the electronic device determines that the air pressure sensor 203B is malfunctioning.

S806: the electronics determine that the air pressure sensor 203B is fault free.

It should be noted that the method shown in fig. 8 is merely an exemplary method for determining whether the air pressure sensor 203B is faulty based on the first deviation value and the historical deviation value, and whether the air pressure sensor 203B is faulty may be determined by other statistical characteristics of the first deviation value and the historical deviation value, which is not limited herein.

S406: a first notification is displayed on the display screen 205, the first notification being used to prompt the user that the blood pressure measurement function of the electronic device is malfunctioning.

After determining that the air pressure sensor 203B is malfunctioning, the electronic device displays a first notification on the display screen 205. The first notification is used for prompting the user to fail the blood pressure measurement function of the electronic equipment.

For example, the user interface displayed on the display 205 of the electronic device includes controls for prompting the user that the blood pressure measurement function of the electronic device is malfunctioning. Wherein the control can comprise an icon and a text, the text is' blood pressure measurement function is abnormal, please leave after-sale maintenance-! ".

S407: the deviation value involved in calculating the blood pressure is determined.

After determining that the air pressure sensor 203B has not failed, an offset value involved in calculating the blood pressure may be determined. For convenience of explanation, the deviation value involved in calculating the blood pressure will be hereinafter referred to as a target deviation value.

In the process that the user uses the electronic device to measure the blood pressure, after the electronic device obtains the reading of the air pressure sensor 203B, the pressure of the air bag 203D can be determined based on the target deviation value and the reading of the air pressure sensor 203B, and then the blood pressure of the user can be determined based on the oscillography.

For example, if the target deviation value is 3.8mmHg and the reading of the air pressure sensor 203B is pmmHg, the pressure of the air bag 203D is determined to be p-3.8mmHg.

After the electronic device obtains the first deviation value, there are various methods for determining the target deviation value, for example, the first deviation value is used as the target deviation value; for another example, the target deviation value or the like is determined based on the first deviation value and the history deviation value, which is not limited herein.

Two exemplary methods of determining the bias value involved in calculating blood pressure are described below.

The first mode includes step S4071 and step S4072.

S4071: a second bias value is determined based on the first bias value and the historical bias value.

After updating the probability distribution of the deviation values based on the first deviation value and the historical deviation value, predicting the deviation value of the next time the user measures the blood pressure as a second deviation value based on the probability distribution. The second deviation value is a target deviation value participating in calculating blood pressure.

Alternatively, in some embodiments of the present application, considering that the zero drift of the air pressure sensor 203B shown in fig. 1C may become larger with time, in response to the user beginning to measure the blood pressure, the electronic device determines the second deviation value based on the determination time of each of the historical deviation values, the determination time of the first deviation value, the historical deviation value, the first deviation value, and the time when the user measured the blood pressure.

Optionally, in some embodiments of the present application, during the process of calculating the second deviation value, the weight of the first deviation value may be appropriately increased, so that the determined second deviation value is closer to the deviation generated by the air pressure sensor 203B during the process of measuring the blood pressure by the user.

S4072: during the process of measuring the blood pressure by the user, the blood pressure of the user is determined based on the second deviation value and the reading of the air pressure sensor 203B.

During the process of measuring the blood pressure by the user, the pressure of the air bag 203D is determined based on the second deviation value and the reading of the air pressure sensor 203B, and the blood pressure of the user is determined based on the oscillometric method.

The second method includes step S4073.

S4073: during the process of measuring the blood pressure by the user, the blood pressure of the user is determined based on the first deviation value and the reading of the air pressure sensor 203B.

It is considered that the zero drift of the air pressure sensor 203B shown in fig. 1C may become large with time, that is, the magnitude of the zero drift of the air pressure sensor 203B has a correlation with time. The first deviation value has the strongest deviation correlation with the zero drift of the air pressure sensor 203B when the user measures the blood pressure, as compared to any one of the history deviation values. Therefore, alternatively, in some embodiments of the present application, the first deviation value may be taken as the target deviation value.

During the process of measuring the blood pressure by the user, the pressure of the air bag 203D is determined based on the first deviation value and the reading of the air pressure sensor 203B, and the blood pressure of the user is determined based on the oscillometric method.

S408: the blood pressure measured by the user this time is displayed on the display screen 205 and/or the blood pressure data of the user is transferred to other electronic devices.

The content in step S408 may refer to the text description in step S403, which is not described herein.

Finally, taking fig. 9A and 9B as an example, in conjunction with the software architecture shown in fig. 3, the data flow during the method for performing the blood pressure measurement function shown in fig. 4 by the electronic device is described in the case that the first condition is the stationary state and the charging state.

As shown in fig. 9A, an acceleration sensor on the electronic device may be used to determine acceleration information of the electronic device, and then the information of whether the electronic device is moving is passed through a sensor driver, an Zhuochuan sensor frame (Android Sensor Framework), into a blood pressure calibration service.

The battery management module 210 on the electronic device may obtain battery information of the electronic device, such as power, whether it is being charged, etc. The battery management module further communicates battery information of the electronic device to a battery service (BatteryService), which communicates whether the battery service communicates a charge to a blood pressure calibration service.

The blood pressure calibration service is a service (service), and may be used to receive messages from other services, messages from other framework layer modules, and messages from applications in an upper application layer. The blood pressure calibration service may be a functional module for performing step S401, i.e. a functional module for determining whether the first condition is met.

As shown in fig. 9B, after the blood pressure calibration service determines that the first condition is met, the air pressure sensor 203B is driven by the An Zhuochuan sensor frame, sensor drive, and one or more readings of the air pressure sensor 203B are recorded, as in reading 1 of fig. 9B. The blood pressure calibration service takes reading 1 through the An Zhuochuan sensor frame, sensor driver, and sends reading 1 to the blood pressure measurement application.

The blood pressure measurement application or the blood pressure calibration service may determine a target deviation value based on one or more readings 1, and correct the reading of the air pressure sensor 203B based on the target deviation value during the process of using the blood pressure measurement function by the user, so as to obtain an accurate pressure value of the air bag 203D, and further obtain an accurate blood pressure of the user.

As used in the above embodiments, the term "when …" may be interpreted to mean "if …" or "after …" or "in response to determination …" or "in response to detection …" depending on the context. Similarly, the phrase "at the time of determination …" or "if detected (a stated condition or event)" may be interpreted to mean "if determined …" or "in response to determination …" or "at the time of detection (a stated condition or event)" or "in response to detection (a stated condition or event)" depending on the context.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, 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 loaded and executed on a computer, produces a flow or function in accordance with embodiments of the application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). 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 an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), etc.

Those of ordinary skill in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by a computer program to instruct related hardware, the program may be stored in a computer readable storage medium, and the program may include the above-described method embodiments when executed. And the aforementioned storage medium includes: ROM or random access memory RAM, magnetic or optical disk, etc.

Claims

1. A method for calibrating a blood pressure measurement function, the method being applied to an electronic device, the electronic device comprising: the air bag is connected with the air pump, and the air pressure sensor is used for measuring the air pressure of the air bag;

the method comprises the following steps: determining one or more first deviation values based on one or more readings of the air pressure sensor, the first deviation values being indicative of zero drift of the air pressure sensor, if a first condition is met, the first condition comprising the electronic device being in an unworn state and a stationary state, or a charged state and a stationary state, or an air bag detached state and a stationary state;

determining a target deviation value based on the one or more first deviation values, the target deviation value being a deviation value for participation in calculating blood pressure;

In response to a first operation by a user, the air bladder is inflated by the air pump, and the blood pressure of the user is determined based on the air pressure sensor and the target deviation value.

2. The method according to claim 1, wherein the method further comprises:

in response to a second operation by the user, determining whether the first condition is met, the second operation including the user clicking on a first control.

3. The method according to claim 1, wherein the method further comprises:

in response to a change in the state of the electronic device, a determination is made as to whether the first condition is satisfied.

4. A method according to claim 3, wherein said determining whether said first condition is met in response to a change in the state of said electronic device, in particular comprises:

determining whether the electronic device is maintained in a stationary state and an airbag detached state in response to the electronic device changing from an airbag undetached state to an airbag detached state;

alternatively, in response to the electronic device changing from an uncharged state to a charged state, it is determined whether the electronic device remains in a stationary state and a charged state.

5. The method according to claim 1, wherein the method further comprises:

A periodic determination is made whether the first condition is satisfied.

6. The method of any one of claims 1-5, wherein after determining one or more first bias values based on one or more readings of a barometric pressure sensor if the first condition is met, before determining a target bias value based on the one or more first bias values, the method further comprises:

determining whether the air pressure sensor is malfunctioning based on the one or more first deviation values.

7. The method of claim 6, wherein said determining whether said air pressure sensor is malfunctioning based on said one or more first deviation values, comprises:

comparing the one or more first deviation values with a preset deviation threshold value; if the one or more first deviation values are smaller than a preset deviation threshold value, determining that the air pressure sensor has no fault; if the one or more first deviation values are not all smaller than a preset deviation threshold value, determining that the air pressure sensor is faulty;

and/or comparing the standard deviation of the one or more first deviation values with a preset standard deviation threshold; if the standard deviation of the one or more first deviation values is smaller than the standard deviation threshold value, determining that the air pressure sensor has no fault; and if the standard deviation of the one or more first deviation values is greater than the standard deviation threshold value, determining that the air pressure sensor is faulty.

8. The method according to any one of claims 1-7, wherein said determining a target deviation value based on said one or more first deviation values, in particular comprises:

the target deviation value is determined based on the one or more first deviation values in response to the first operation of the user or after the one or more first deviation values are determined.

9. The method according to claim 8, wherein said determining said target deviation value based on said one or more first deviation values, in particular comprises:

determining the one first deviation value as the target deviation value in the case that the number of the one or more first deviation values is one;

and determining that the average value of the plurality of first deviation values is the target deviation value when the number of the one or more first deviation values is a plurality.

10. The method according to claim 8, wherein said determining said target deviation value based on said one or more first deviation values, in particular comprises:

the target deviation value is determined based on the one or more first deviation values and a historical deviation value, the historical deviation value comprising a target deviation value obtained by a calibration method of the electronic device that previously performed the blood pressure measurement function.

11. An electronic device, the electronic device comprising: the device comprises an air bag, an air pressure sensor, an air passage conduction assembly and an air pump, wherein the air bag is connected with the air pump, and the air pressure sensor is used for measuring the air pressure of the air bag; the electronic device further includes: one or more processors and memory;

the memory is coupled with the one or more processors, the memory for storing computer program code comprising computer instructions that the one or more processors invoke to cause the electronic device to perform the method of any of claims 1-10.

12. A chip system for application to an electronic device, the chip system comprising one or more processors to invoke computer instructions to cause the electronic device to perform the method of any of claims 1-10.

13. A computer readable storage medium comprising instructions which, when run on an electronic device, cause the electronic device to perform the method of any one of claims 1 to 10.

14. A computer program product comprising computer instructions which, when executed by one or more processors, implement the method of any of claims 1 to 10.