WO2022028307A1 - Blood pressure measurement method, electronic device, and computer readable storage medium - Google Patents

Abstract

A blood pressure measurement method, an electronic device, and a computer readable storage medium. The blood pressure measurement method comprises: obtaining pressure nephogram of a preset part of a user body, the pressure nephogram being used for describing pressure distribution information of the preset part of the user body; determining the current state of the user body according to the pressure nephogram; and if the current state of the user body is a first state, starting a blood pressure measurement task. The pressure nephogram is used for describing the pressure distribution information of the preset part of the user body, and a small change in the user body state would cause a change in pressure distribution of the preset part of the body. Therefore, the user state can be accurately recognized according to the pressure nephogram of the preset part of the user body; moreover, starting the blood pressure measurement task is determined according to the accurate user state, thus improving the accuracy of blood pressure measurement.

Description

Blood pressure measurement method, electronic device, and computer-readable storage medium

This application claims the priority of the Chinese patent application with the application number 202010783550.0 and the application name "Blood pressure measurement method, electronic device and computer-readable storage medium" submitted to the State Intellectual Property Office on August 6, 2020, the entire content of which is approved by Reference is incorporated in this application.

technical field

The present application relates to the field of wearable devices, and in particular, to a blood pressure measurement method, an electronic device, and a computer-readable storage medium.

Background technique

Blood pressure is an important indicator of physical health. Regular measurement and monitoring of blood pressure helps users to understand their physical state in time, and is an important means to improve users' health. Existing blood pressure measuring devices without cuff compression are more and more widely used because they can be continuously worn for a long time to measure blood pressure.

The blood pressure measurement device without cuff pressure does not involve pressure operation, and has low requirements for measurement conditions. There is an active space between the device and the human body. In order to ensure the accuracy of the measurement, it is generally detected when the user is in a stable state. to check blood pressure. In the existing measurement method of the blood pressure measurement device without cuff, it is easy to use some small-amplitude movements that affect the activation of muscles (such as raising a leg, standing on one foot, carrying heavy objects), and small-amplitude movements with a large frequency. The states with small changes such as exercise and abnormal sitting posture are identified as stable states, while small-scale movements that affect muscle activation, small-scale movements with high exercise frequency, and abnormal sitting postures have a significant impact on the measured blood pressure. Judging these states will lead to errors in blood pressure measurement and reduce the accuracy of blood pressure measurement.

SUMMARY OF THE INVENTION

The present application provides a blood pressure measurement method, an electronic device and a computer-readable storage medium, which can improve the accuracy of blood pressure measurement.

To achieve the above object, the application adopts the following technical solutions:

In a first aspect, a blood pressure measurement method is provided, comprising:

Obtain a pressure cloud map of a preset part of the user's body, where the pressure cloud map is used to describe the pressure distribution information of the preset part of the user's body; determine the current state of the user's body according to the pressure cloud map; if the current state of the user's body is In the first state, the blood pressure measurement task is started.

In the above embodiment, the electronic device obtains the pressure contour of the preset part of the user's body, and determines the current state of the user's body according to the pressure contour of the preset part of the user's body. If the current state of the user's body is the first state, that is, the blood pressure can be measured. Then the electronic device starts the blood pressure measurement task. Since the pressure cloud map is used to describe the pressure distribution information of the preset body part of the user, and the slight change of the user's body state will cause the pressure distribution of the preset body part to change, therefore, the pressure cloud map of the preset body part of the user can be accurately identified. The user state is determined and the blood pressure measurement task is started according to the accurate user state, which can improve the accuracy of blood pressure measurement.

In a possible implementation manner of the first aspect, the acquiring a pressure cloud map of a preset part of the user's body includes:

Acquire a pressure signal of the preset part of the user's body sent by a pressure sensor, the pressure sensor includes at least one sensor unit, the at least one sensor unit forms an array according to a preset arrangement rule, and the pressure signal includes at least one pressure value , each of the sensor units corresponds to one of the pressure values; the pressure cloud map of the preset part of the user's body is determined according to the pressure value and the preset arrangement rule.

In a possible implementation manner of the first aspect, the determining the pressure cloud map of the preset part of the user's body according to the pressure value and the preset arrangement rule includes:

The pressure cloud map of the preset part of the user's body is determined according to the pressure value, the preset arrangement rule and pre-stored correction information, and the pre-stored correction information is used to determine the pressure value and the pressure cloud map on the pressure cloud map. The mapping relationship of grayscale values. The pressure cloud map is determined according to the pre-stored correction information, which improves the accuracy of the generated pressure cloud map, thereby improving the accuracy of the determined user state.

In a possible implementation manner of the first aspect, after the blood pressure measurement task is started, the method further includes:

The blood pressure calculation model is determined according to the pressure cloud map of the preset body part of the user; the blood pressure of the user is calculated according to the blood pressure calculation model. Since the pressure cloud map can reflect the current state of the user's body, determining the blood pressure calculation model according to the pressure cloud map is to determine the blood pressure calculation model according to the current state of the user's body, so that the blood pressure calculation model that matches the current state of the user's body can be determined, which can then be calculated out accurate user's blood pressure.

In a possible implementation manner of the first aspect, determining the current state of the user's body according to the pressure cloud map includes: determining the current state of the user's body according to the image change frequency, distribution state and/or shape of the pressure cloud map. Specifically, one or more features of the pressure cloud map are determined and selected according to the part of the user's body corresponding to the pressure cloud map to determine the current state of the user's body, thereby improving the accuracy of the determined current state of the user's body.

In a possible implementation manner of the first aspect, the pressure contour of the preset part of the user's body includes a pressure contour of the sole of the user's foot. Correspondingly, if the current state of the user's body is the first state, then Initiate blood pressure measurement tasks, including:

If the pressure value corresponding to the pressure contour of the user's sole is within the first preset range, and the image change frequency of the pressure contour of the user's sole is consistent with the preset frequency, or the pressure contour of the user's sole corresponds to The pressure value of the user's sole is within the first preset range, and within the preset time period, the distribution state of the pressure cloud map of the user's sole is consistent with the first preset distribution state, then it is determined that the current state of the user's body is the first status to start the blood pressure measurement task. Among them, the first state is the blood pressure measurable state. Since the pressure cloud map of the user's sole reflects the standing state of the user, by obtaining the pressure cloud map of the user's sole, the blood pressure measurable state of the user in different standing states can be detected, improving the The accuracy of blood pressure measurement.

In a possible implementation manner of the first aspect, the pressure contour of the preset part of the user's body includes a pressure contour of the user's buttocks. Correspondingly, if the current state of the user's body is the first state, start the Blood pressure measurement tasks, including:

If the pressure value corresponding to the pressure contour of the user's buttocks is within the second preset range, and the distribution state of the pressure contour of the user's buttocks is consistent with the second preset distribution state, the current state of the user's body is determined as In the first state, the blood pressure measurement task is started. Since the pressure cloud map of the user's buttocks reflects the different sitting postures of the user, by acquiring the pressure cloud map of the user's buttocks, the measurable state of the blood pressure of the user in different sitting postures can be detected, thereby improving the accuracy of blood pressure measurement.

In a possible implementation manner of the first aspect, the pressure cloud map of the preset part of the user's body includes a pressure cloud map of the user's head. Correspondingly, if the current state of the user's body is the first state, then Initiate blood pressure measurement tasks, including:

If the pressure value corresponding to the pressure cloud map of the user's head is within a third preset range, and within a preset time period, the shape of the pressure cloud map of the user's head is consistent with the preset shape, then determine that the user's body is The current state is the first state, and the blood pressure measurement task is started. Since the pressure cloud map of the user's head reflects different sleeping positions of the user, the measurable state of blood pressure of the user in different sleeping positions is detected by acquiring the pressure cloud map of the user's head, thereby improving the accuracy of blood pressure measurement.

In a possible implementation manner of the first aspect, after the starting the blood pressure measurement task, the method further includes:

If it is detected that the current state of the user's body changes from the first state to the second state, the blood pressure measurement task is stopped, wherein the second state is the state of unmeasurable blood pressure, that is, when the current state of the user's body is the second state The blood pressure measurement is inaccurate, and the blood pressure measurement task is stopped when the blood pressure measurement is inaccurate, thereby reducing the energy consumption during blood pressure measurement.

In a second aspect, a blood pressure measurement device is provided, including:

an acquisition module, configured to acquire a pressure cloud map of a preset part of the user's body, where the pressure cloud map is used to describe the pressure distribution information of the preset part of the user's body;

a determining module, configured to determine the current state of the user's body according to the pressure cloud map;

The control module is configured to start the blood pressure measurement task if the current state of the user's body is the first state.

In a possible implementation manner of the second aspect, the obtaining module includes:

an acquisition unit, configured to acquire the pressure signal of the preset part of the user's body sent by the pressure sensor, the pressure sensor includes at least one sensor unit, and the at least one sensor unit forms an array according to a preset arrangement rule, and the pressure signal including at least one pressure value, and each of the sensor units corresponds to one of the pressure values;

A determination unit, configured to determine the pressure cloud map of the preset part of the user's body according to the pressure value and the preset arrangement rule.

In a possible implementation manner of the second aspect, the determining unit is specifically configured to:

The pressure cloud map of the preset part of the user's body is determined according to the pressure value, the preset arrangement rule and pre-stored correction information, and the pre-stored correction information is used to determine the pressure value and the pressure cloud map on the pressure cloud map. The mapping relationship of grayscale values.

In a possible implementation manner of the second aspect, the control module is further configured to:

Determine the blood pressure calculation model according to the pressure cloud map of the preset part of the user's body;

The user's blood pressure is calculated according to the blood pressure calculation model.

In a possible implementation manner of the second aspect, the determining module is specifically configured to:

The current state of the user's body is determined according to the image change frequency, distribution state and/or shape of the pressure cloud map.

In a possible implementation manner of the second aspect, the pressure cloud map of the preset part of the user's body includes a pressure cloud map of the sole of the user's foot. Correspondingly, the control module is specifically configured to:

If the pressure value corresponding to the pressure contour of the user's sole is within the first preset range, and the image change frequency of the pressure contour of the user's sole is consistent with the preset frequency, or the pressure contour of the user's sole corresponds to The pressure value of the user's sole is within the first preset range, and within the preset time period, the distribution state of the pressure cloud map of the user's sole is consistent with the first preset distribution state, then it is determined that the current state of the user's body is the first status to start the blood pressure measurement task.

In a possible implementation manner of the second aspect, the pressure contour of the preset part of the user's body includes a pressure contour of the user's buttocks, and correspondingly, the control module is specifically configured to:

If the pressure value corresponding to the pressure contour of the user's buttocks is within the second preset range, and the distribution state of the pressure contour of the user's buttocks is consistent with the second preset distribution state, the current state of the user's body is determined as In the first state, the blood pressure measurement task is started.

In a possible implementation manner of the second aspect, the pressure contour of the preset part of the user's body includes a pressure contour of the user's head, and correspondingly, the control module is specifically configured to:

If the pressure value corresponding to the pressure cloud map of the user's head is within the third preset range, and within a preset time period, the shape of the pressure cloud map of the user's head is consistent with the preset shape, then determine the user's body The current state is the first state, and the blood pressure measurement task is started.

In a possible implementation manner of the second aspect, the control module is further configured to:

If it is detected that the current state of the user's body changes from the first state to the second state, the blood pressure measurement task is stopped.

In a third aspect, an electronic device is provided, comprising a processor for executing a computer program stored in a memory, so as to implement the method according to the first aspect above.

In a fourth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the method according to the first aspect.

A fifth aspect provides a computer program product that, when the computer program product runs on a terminal device, causes the terminal device to execute the method described in the first aspect.

It can be understood that, for the beneficial effects of the second aspect to the fifth aspect, reference may be made to the relevant description in the first aspect, which is not repeated here.

Description of drawings

FIG. 1 is a structural diagram of a blood pressure measurement system to which the blood pressure measurement method provided by the embodiment of the present application is applicable;

2 is a blood pressure measurement method under an application scenario provided by an embodiment of the present application;

3 is a schematic diagram of a pressure cloud map of a user's sole provided by an embodiment of the present application;

FIG. 4 is a blood pressure measurement method under another application scenario provided by an embodiment of the present application;

5 is a schematic diagram of a pressure cloud map of a user's buttocks provided by an embodiment of the present application;

FIG. 6 is a blood pressure measurement method in yet another application scenario provided by an embodiment of the present application;

7 is a schematic diagram of a pressure cloud map of a user's head provided by an embodiment of the present application;

8 is a schematic flowchart of a blood pressure measurement method provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of an electronic device provided by an embodiment of the present application.

detailed description

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and/or component, but does not exclude one or more other The presence or addition of features, integers, steps, operations, elements, components and/or sets thereof.

It will also be understood that, as used in this specification and the appended claims, the term "and/or" refers to and including any and all possible combinations of one or more of the associated listed items.

As used in the specification of this application and the appended claims, the term "if" may be contextually interpreted as "when" or "once" or "in response to determining" or "in response to detecting ". Similarly, the phrases "if it is determined" or "if the [described condition or event] is detected" can be interpreted, depending on the context, to mean "once it is determined" or "in response to the determination" or "once the [described condition or event] is detected. ]" or "in response to detection of the [described condition or event]".

In addition, in the description of the present application, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

References in this specification to "one embodiment" or "some embodiments" and the like mean that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically emphasized otherwise. The terms "including", "including", "having" and their variants mean "including but not limited to" unless specifically emphasized otherwise.

The blood pressure measurement method provided in the embodiment of the present application is applied to an electronic device, and the electronic device may be a mobile phone, a tablet computer, a wearable device, or the like. The electronic device is used to control the blood pressure measurement device for blood pressure measurement. The blood pressure measurement device can be independent of the electronic device. For example, the electronic device is a mobile phone, and the blood pressure measurement device is a pulse sensor connected to the mobile phone; the blood pressure measurement device can also be integrated on the electronic device. For example, the electronic device is a watch or a wristband, and the blood pressure measuring device is integrated on the watch or the wristband.

The blood pressure measurement method provided by the embodiment of the present application will be described below by taking the example that the blood pressure measurement device is integrated into the electronic device, that is, the electronic device has a blood pressure measurement function.

When the user is in an exercising state, the blood pressure fluctuates greatly, so the accuracy of the blood pressure data measured when the user is in an exercising state is low. In order to ensure the accuracy of blood pressure measurement, the electronic device needs to obtain the current state of the user's body and determine whether the current state of the user's body is a blood pressure measurable state. If the current state of the user's body is an unmeasurable state of blood pressure, the blood pressure measurement data is discarded.

In a possible implementation manner, the electronic device acquires an acceleration signal of the user's movement, and the acceleration signal may be a single-axis acceleration vector signal, or may be an acceleration vector signal including an X-axis, a Y-axis, and a Z-axis. After acquiring the acceleration vector signal, the electronic device calculates the geometric mean of the acceleration vector signals at multiple times, thereby obtaining the acceleration scalar signal, and determines the current state of the user's body according to the acceleration scalar signal and the preset acceleration. If the acceleration scalar signal is greater than or equal to the preset acceleration, it is determined that the current state of the user's body is an exercise state, that is, the blood pressure cannot be measured, and the corresponding blood pressure measurement data is discarded. If the acceleration scalar signal is less than the preset acceleration, it is determined that the current state of the user's body is a stable state, that is, a blood pressure measurable state, and the corresponding blood pressure measurement data is retained. However, when the current state of the user's body is determined according to the acceleration scalar signal, some motion states with small accelerations, such as small-amplitude movements, carrying heavy objects, etc., will be determined as stable states. It can cause fluctuations in blood pressure, thereby affecting the accuracy of blood pressure measurement.

In another possible implementation manner, the electronic device acquires a photoplethysmograph (PPG) signal of the user, and determines the current state of the user's body according to the PPG signal and a preset index, wherein the preset index includes but is not limited to: The heart rate calculated by the PPG signal is in the range of 40-180bpm, and the adjacent heart rate variation is less than 15bpm; the number of local maxima of the PPG signal is less than 3; the notch of the green light PPG signal at the wrist is not obvious; The cardiac systolic period calculated from the PPG signal is about 0.3 times the cardiac cycle. If the PPG signal is consistent with the preset index, it is determined that the current state of the user's body is a blood pressure measurable state, and the corresponding blood pressure measurement data is retained. If the PPG signal is inconsistent with the preset index, it is determined that the current state of the user's body is an unmeasurable state of blood pressure, and the corresponding blood pressure measurement data is discarded. However, if the user is in an abnormal sitting posture, the PPG signal is consistent with the preset index. Therefore, if the user is in an abnormal sitting posture based on the PPG signal, it will be determined that the blood pressure is measurable. When the user is in an abnormal sitting posture, it will cause blood pressure. Fluctuations, the measured blood pressure data is inaccurate.

To this end, an embodiment of the present application provides a blood pressure measurement method, as shown in FIG. 1 , which is an architecture diagram of a blood pressure measurement system to which the blood pressure measurement method provided by the embodiment of the present application is applicable. The blood pressure measurement system includes an electronic device 100 and a pressure The sensor 200 and the electronic device 100 are connected in communication with the pressure sensor 200 . The electronic device 100 integrates a blood pressure measurement device and has a blood pressure measurement function. The pressure sensor 200 is in contact with a preset part of the user's body. The pressure sensor 200 includes at least one sensor unit 201, and the at least one sensor unit 201 forms an array according to a preset arrangement rule, Each sensor unit 201 corresponds to a pressure value. The shape and arrangement rules of the pressure sensors 200 may be set according to the preset parts of the user's body that are in contact with the pressure sensors 200 .

The pressure sensor 200 includes a data processing module, the data processing module is used to generate a corresponding pressure cloud map of the preset part of the user's body according to the pressure value of each sensor unit 201, and send the generated pressure cloud map to the electronic device 100, and the electronic device 100 according to the pressure The cloud map determines the current state of the user's body. If the current state of the user's body is the first state, that is, the blood pressure can be measured, the blood pressure measurement task is started. If the current state of the user's body is the second state, that is, the blood pressure cannot be measured, the blood pressure measurement task is stopped. Since the pressure cloud map is used to describe the pressure distribution information of the preset parts of the user's body, and the slight change of the user's physical state will cause the pressure distribution of the preset parts of the body to change, the current state of the user's body can be accurately determined according to the pressure cloud map. Then, the blood pressure measurement task is started according to the accurate current state of the user's body, so as to obtain accurate blood pressure measurement data and improve the accuracy of blood pressure measurement. At the same time, when the current state of the user's body is an unmeasurable state, the blood pressure measurement task is stopped, which can reduce the power consumption of measuring the blood pressure when the blood pressure is unmeasurable.

It should be noted that, in other possible implementations, the pressure sensor 200 may also send the pressure value of each sensor unit 201 and the arrangement rule of each sensor unit 201 to the electronic device, and the electronic device can send the pressure value of each sensor unit 201 to the electronic device according to the pressure of each sensor unit 201 The values and the arrangement rule of each sensor unit 201 generate a pressure contour map. Specifically, the electronic device 100 obtains the pressure value of each sensor unit 201, determines the grayscale value corresponding to each sensor unit 201 according to the preset mapping relationship between the pressure value and the grayscale value, and then determines the grayscale value corresponding to each sensor unit 201 according to the arrangement rule. The position of the unit 201 determines the grayscale value corresponding to each position, and generates a pressure cloud map according to the grayscale value of each position. Among them, the grayscale value corresponding to the pressure value can be the grayscale value of any one or more of the three channels of R (red), G (green), and B (blue). The grayscale value generates a pressure cloud map, and then determines the current state of the user's body according to the pressure cloud map.

The following describes the blood pressure measurement method provided by the embodiments of the present application according to the blood pressure measurement system shown in FIG. 1 and in combination with specific application scenarios.

In one application scenario, the electronic device is a watch with a blood pressure measurement function, and the pressure sensor is integrated on the shoe or insole. Correspondingly, the pressure cloud map of the preset part of the user's body includes the pressure cloud map of the sole of the user's foot.

As shown in Figure 2, the user wears the electronic device, starts the blood pressure measurement task, and puts on shoes with integrated pressure sensors. The pressure sensor starts the trigger mode and sends the pressure signal to the electronic device. The pressure signal includes the pressure value corresponding to each sensor unit. .

In a possible implementation manner, before determining the pressure cloud map, the electronic device first determines correction information, where the correction information is a mapping relationship between pressure values and grayscale values on the pressure cloud map.

In a possible implementation manner, the electronic device is connected in communication with the body fat scale, the user naturally stands on the body fat scale, the body fat scale sends the measured weight of the user to the electronic device, and the electronic device detects the user sent by the body fat scale. Whether the weight is consistent with the pre-stored user weight. If they are consistent, it means that the user has no load, and the electronic device establishes the mapping relationship between the pressure value and the grayscale value according to the preset mapping rule. For example, if the grayscale value is the grayscale value of a single channel and the user's weight is 50kg, set the maximum pressure value to 1000 and the minimum pressure value to 0, then set the pressure value of 1000 to the maximum grayscale value of 255, and set the pressure value to 1000. 0 corresponds to the minimum grayscale value of 0, and then the pressure value between the maximum pressure value and the minimum pressure value is in one-to-one correspondence with the grayscale value between the maximum grayscale value and the minimum grayscale value, so as to obtain the pressure value and The mapping relationship of grayscale values, that is, correction information.

In another possible implementation manner, after receiving the pressure signal sent by the pressure sensor, the electronic device obtains the correction instruction input by the user, and establishes the mapping relationship between the pressure value and the grayscale value according to the preset mapping rule and the user's weight information , the correction information.

After the electronic device determines the correction information, it determines the pressure cloud map of the user's sole according to the received pressure signal sent by the pressure sensor and the correction information. As shown in Figure 3, the pressure cloud map can reflect the pressure distribution information of the user's sole. In practical applications, The pressure cloud map can be determined according to the grayscale values of the three channels, that is, the pressure cloud map is a colored picture, and different colors represent different pressure values.

As shown in FIG. 2 , after determining the pressure cloud map of the sole of the user, the electronic device first determines whether the pressure value corresponding to the pressure cloud map is within a first preset range, where the first preset value is set according to the height and weight of the user of. If there is a pressure value that is not within the first preset range, it means that the user is in a weight-bearing state or a pull-up state, the current state of the user's body is an unmeasurable blood pressure state, and the blood pressure measurement task is stopped. If the pressure value corresponding to the pressure cloud map is within the first preset range, it means that the user is in a normal standing state.

If the user is in a normal standing state, the electronic device determines whether the user is in a state of motion according to the image changes of the pressure cloud map. If the image of the pressure cloud map changes within a preset time period, it means that the user is in a state of exercise. If the image of the pressure cloud map changes remains unchanged, indicating that the user is in a stationary state.

If the user is in a stationary state, the electronic device determines whether the distribution state of the pressure cloud map is consistent with the first preset distribution state within the preset time period. The first preset distribution state is a pre-stored distribution state of the pressure cloud map of the sole of the foot when the user is in a natural standing state. When the user is in a natural standing state, the distribution state of the pressure cloud map of the left sole and the pressure cloud map of the right sole is close to a uniform distribution state. If the distribution state of the pressure cloud map is consistent with the first preset distribution state, it means that the current state of the user's body is a blood pressure measurable state, and the blood pressure measurement task is started; if the distribution state of the pressure cloud map is inconsistent with the first preset distribution state, it means that the user's body The current state of BP is unmeasurable, and the BP measurement task is stopped.

If the user is in motion, the image change frequency of the pressure cloud map reflects the user's walking speed. If the image change frequency of the pressure cloud map is small, it means that the user is in a slow walking state. running state. The electronic device determines whether the image change frequency of the pressure cloud map is consistent with the preset frequency, wherein, the image change frequency of the pressure cloud map is consistent with the preset frequency, which means that the image change frequency of the pressure cloud map is less than the preset frequency, and the pressure within the preset period of time. The frequency of image changes in the cloud map remains the same. If the image change frequency of the pressure cloud map is consistent with the preset frequency, it means that the current state of the user's body is a blood pressure measurable state, and the blood pressure measurement task is started; if the image change frequency of the pressure cloud map is inconsistent with the preset frequency, it means that the current state of the user's body is When the blood pressure is unmeasurable, stop the blood pressure measurement task.

For example, for the scene where the user is in the gym, during the natural walking process of the user, after detecting that the pressure value corresponding to the pressure cloud map is within the first preset range, the electronic device determines that the user is in a motion state according to the image changes of the pressure cloud map. After it is determined that the user is in an exercise state, the electronic device detects that the image change frequency of the pressure nephogram of the user's sole is consistent with the preset frequency, and starts the blood pressure measurement task.

When the user performs stretching exercise in the gym, after detecting that the pressure value corresponding to the pressure cloud map is within the first preset range, the electronic device determines that the user is in a stationary state according to the image change of the pressure cloud map. After it is determined that the user is in a stationary state, the electronic device detects that the distribution state of the pressure nephogram of the user's sole is inconsistent with the first preset distribution state, and stops the blood pressure measurement task. Wherein, if the electronic device detects that the distribution state of the pressure cloud map of the left sole of the user is inconsistent with the distribution state of the pressure cloud map of the right sole, it means that the user's body is in a roll state. If the electronic device detects that the distribution state of the forefoot and the distribution state of the back of the foot of the pressure nephogram of the user's sole are inconsistent, it means that the user is in a forward or backward leaning state.

When the user performs a pressing exercise in the gym, the electronic device detects a pressure value that is not within the first preset range according to the pressure value corresponding to the pressure cloud map, indicating that the user is in a weight-bearing state or a pull-up state, and stops the blood pressure measurement task.

When the user finishes exercising and stands and rests normally, after detecting that the pressure value corresponding to the pressure cloud map is within the first preset range, the electronic device determines that the user is in a stationary state according to the image change of the pressure cloud map. After it is determined that the user is in a stationary state, the electronic device detects that the distribution state of the pressure nephogram of the user's sole is consistent with the first preset distribution state, and starts the blood pressure measurement task.

By acquiring the pressure cloud map of the user's sole, the measurable and unmeasurable states of blood pressure when the user is at rest, as well as the measurable and unmeasurable states of blood pressure when the user is exercising can be detected, improving the accuracy of blood pressure measurement , and stopping the blood pressure measurement task when the blood pressure is unmeasurable can save the energy consumption of the electronic device.

In another application scenario, the electronic device is a watch with a blood pressure measurement function, and the pressure sensor is integrated on the seat cushion. Correspondingly, the pressure cloud map of the preset part of the user's body includes the pressure cloud map of the user's buttocks.

As shown in FIG. 4 , the user wears the electronic device, places the seat cushion on the seat, and sits on the seat cushion, the electronic device establishes a communication connection with the pressure sensor, and receives the pressure signal sent by the pressure sensor. The electronic device may also set the current mode to the Do Not Disturb mode according to the acquired user scene. For example, if the user scene is a library scene, the current mode is set to the Do Not Disturb mode.

After the electronic device receives the pressure signal, it first determines the correction information. Specifically, the electronic device obtains the user's identity information, such as fingerprints, voice or face, etc., obtains pre-stored user's height and weight information according to the user's identity information, and then determines the weight of the user's upper body according to the user's height and weight information , determine the maximum pressure value and the minimum pressure value according to the weight of the user's upper body, correspond the maximum pressure value to the maximum grayscale value, and correspond the minimum pressure value to the minimum grayscale value, so as to obtain the mapping relationship between the pressure value and the grayscale value, that is, Correction information.

After the electronic device determines the correction information, it determines the grayscale value corresponding to each sensor unit according to the pressure signal sent by the received pressure sensor and the correction information, and determines the pressure cloud map of the user's buttocks according to the grayscale value of each sensor unit and the position of each sensor unit. .

As shown in FIG. 4 , after determining the pressure cloud map of the user's hip, the electronic device first determines whether the pressure value corresponding to the pressure cloud map is within the second preset range. If there is a pressure value that is not within the second preset range, it means that the user is not sitting On the seat cushion, the current state of the user's body is an unmeasurable state of blood pressure, and the blood pressure measurement task is stopped. If the pressure value corresponding to the pressure nephogram is within the second preset range, it means that the user is in a normal sitting and standing state.

If the user is in a normal sitting state, the electronic device detects whether the distribution state of the pressure nephogram is consistent with the second preset distribution state, wherein the second preset distribution state is a symmetrical bimodal distribution state as shown in FIG. 5 , and Two peaks, Peak 51 and Peak 52, are located in the middle of the pressure contour. If the distribution state of the pressure cloud map is consistent with the second preset distribution state, it means that the current state of the user's body is a blood pressure measurable state, and the blood pressure measurement task is started; if the distribution state of the pressure cloud map is inconsistent with the second preset distribution state, it means that the user's body The current state of BP is unmeasurable, and the BP measurement task is stopped.

For example, for the scenario where the user is in the library, when the user is sitting on the seat cushion and reading a book, the electronic device detects that the distribution state of the pressure cloud map is symmetrical after detecting that the pressure value corresponding to the pressure cloud map is within the second preset range. Bimodal distribution state, start the blood pressure measurement task.

When the user feels sleepy and gets up, the electronic device detects that the pressure value corresponding to the pressure nephogram is small and not within the second preset range, and stops the blood pressure measurement task.

When the user sits in a more casual posture, for example, sitting sideways on the seat to taste coffee, the electronic device detects that the pressure nephogram is in a bimodal distribution state after detecting that the pressure value corresponding to the pressure nephogram is within the second preset range. Distribution state, but the bimodal distribution state is asymmetric, indicating that the user is in a side-dependent state and stops the blood pressure measurement task.

When the user sits on the seat cushion and rests on the table, after detecting that the pressure value corresponding to the pressure cloud map is within the second preset range, the electronic device detects that the distribution state of the pressure cloud map is a bimodal distribution state. The positions of the peaks are all in the front, indicating that the user is in the forward lying state and stops the blood pressure measurement task.

By acquiring the pressure cloud map of the user's buttocks, it is possible to detect the measurable and unmeasurable states of the user's blood pressure in different sitting positions, improving the accuracy of blood pressure measurement, and stopping the blood pressure measurement task when the blood pressure is unmeasurable can save the time of electronic equipment. energy consumption.

In another application scenario, the electronic device is a watch with a blood pressure measurement function, and the pressure sensor is integrated on the pillow. Correspondingly, the pressure cloud map of the preset part of the user's body includes the pressure cloud map of the user's head.

As shown in FIG. 6 , the user wears the electronic device and lies on the pillow integrated with the pressure sensor, the electronic device establishes a communication connection with the pressure sensor, and receives the pressure signal sent by the pressure sensor. After the electronic device receives the pressure signal, it first determines the correction information. Specifically, the electronic device determines the weight of the user's head according to the pre-stored height and weight information of the user, determines the maximum pressure value and the minimum pressure value according to the weight of the user's head, corresponds the maximum pressure value to the maximum grayscale value, and sets the The minimum pressure value corresponds to the minimum grayscale value, thereby obtaining the mapping relationship between the pressure value and the grayscale value, that is, correction information.

After the electronic device determines the correction information, it determines the pressure cloud map of the user's head according to the received pressure signal sent by the pressure sensor and the correction information.

As shown in FIG. 6 , after determining the pressure contour of the user’s head, the electronic device first determines whether the pressure value corresponding to the pressure contour is within the third preset range. If there is a pressure value that is not within the third preset range, it means that the user has not Lying on the pillow, or the user lying on the pillow in an abnormal sleeping position, the current state of the user's body is the state of unmeasurable blood pressure, and the blood pressure measurement task is stopped. If the pressure value corresponding to the pressure nephogram is within the third preset range, it means that the user is lying on the pillow.

If the user is lying on the pillow, the electronic device detects whether the shape of the pressure cloud is in a state of change within the preset time period. When the blood pressure is unmeasurable, stop the blood pressure measurement task. If the shape of the pressure cloud is in a stable state within the preset time period, it means that the user is still lying on the pillow.

If the user is lying still on the pillow, the electronic device detects whether the shape of the pressure cloud map is consistent with the preset shape. If the shape of the pressure cloud map is consistent with the preset shape, it means that the current state of the user's body is a blood pressure measurable state, and the blood pressure measurement task is started; If the shape of the pressure cloud map is inconsistent with the preset shape, it means that the current state of the user's body is an unmeasurable state of blood pressure, and the blood pressure measurement task is stopped. The preset shape is a circle as shown in FIG. 7 , or a semicircle.

For example, when the user starts to fall asleep and lies flat on the pillow, after detecting that the pressure value corresponding to the pressure cloud map is within the third preset range, the electronic device detects that the shape of the pressure cloud map is in a stable state, and the shape of the pressure cloud map is in a stable state. The circle indicates that the user is in a lying state, starts the blood pressure measurement task, and calculates the user's blood pressure according to the blood pressure calculation model corresponding to the lying state.

When the user feels uncomfortable lying on the pillow sideways, after detecting that the pressure value corresponding to the pressure cloud map is within the third preset range, the electronic device detects that the shape of the pressure cloud map is in a stable state, and the shape of the pressure cloud map is a semicircle. , indicating that the user is in the side lying state, start the blood pressure measurement task, and calculate the user's blood pressure according to the blood pressure calculation model corresponding to the side lying state.

When the user is woken up by mosquitoes and turns his body at night, after detecting that the pressure value corresponding to the pressure cloud map is within the third preset range, the electronic device detects that the shape of the pressure cloud map is in a state of change, indicating that the user is currently turning his body. Stop the blood pressure measurement task.

When the user gets up to drink water, the electronic device stops the blood pressure measurement task when it detects that the pressure value corresponding to the pressure nephogram is small and not within the third preset range.

When the user sleeps with the hand resting under the head, the electronic device detects that there is an abnormal peak in the pressure nephogram, that is, there is a pressure value that is not within the third preset range, and stops the blood pressure measurement task.

By acquiring the pressure cloud map of the user's head, the measurable and unmeasurable blood pressure states of the user in different sleeping positions can be detected, thereby improving the accuracy of blood pressure measurement, and stopping the blood pressure measurement task when the blood pressure is unmeasurable can save the time of electronic equipment. energy consumption.

As shown in FIG. 8 , a flowchart of a blood pressure measurement method provided by an embodiment of the present application, the blood pressure measurement method includes:

S101: Acquire a pressure cloud map of a preset part of the user's body, where the pressure cloud map is used to describe the pressure distribution information of the preset part of the user's body.

The preset parts of the user's body may be parts of the user's soles, head, buttocks, and the like. A preset part of the user's body contacts the pressure sensor, and the pressure cloud map is generated according to the pressure signal collected by the pressure sensor.

In a possible implementation manner, an electronic device that communicates with the pressure sensor, such as a mobile phone, or a data calculation module integrated in the pressure sensor, determines the corresponding pressure cloud map according to the pressure signal sent by the pressure sensor, and sends the pressure cloud map to Electronic equipment.

In another possible implementation manner, the electronic device acquires the pressure signal sent by the pressure sensor, where the pressure signal is the pressure value corresponding to each sensor unit. After the electronic device obtains the pressure signal, after filtering the pressure signal, the grayscale value corresponding to each sensor unit is determined according to the pre-stored correction information, and then the pressure cloud map is determined according to the position of each sensor unit.

The pre-stored correction information may be a mapping relationship between pressure values and grayscale values. Specifically, the electronic device determines the maximum pressure value and the minimum pressure value corresponding to the preset part of the user's body according to the user's height and weight information, thereby obtaining the pressure value interval, and mapping the pressure value interval to the grayscale value interval in [0,255] , to get the mapping relationship between pressure value and grayscale value. The electronic device can determine the grayscale value corresponding to each sensor unit according to the mapping relationship between the pressure value and the grayscale value and the pressure signal.

The pre-stored correction information can also be a reference template. Specifically, the electronic device obtains the pressure distribution information when the user is in a blood pressure measurable state, and generates a corresponding pressure cloud map according to the pressure distribution information when the user is in a blood pressure measurable state and a preset grayscale value interval, and the pressure cloud map is a reference template, and then determine the grayscale value corresponding to each sensor unit according to the difference between the pressure distribution information in the reference template and the pressure distribution information in the pressure signal. For example, for a sensor unit at the same position, if the pressure value in the pressure signal is greater than the pressure value in the reference template, the grayscale value of the R channel of the sensor unit in the reference template is correspondingly changed. If the pressure value in the pressure signal is less than Refer to the pressure value in the template, then correspondingly change the grayscale value of the B channel of the sensor unit in the reference template, the changed grayscale value is the grayscale value corresponding to the sensor unit in the pressure signal, and then obtain the corresponding grayscale value of the sensor unit in the pressure signal. The grayscale value corresponding to the sensor unit.

S102: Determine the current state of the user's body according to the pressure cloud map.

Specifically, the electronic device can determine the current state of the user's body according to any one or more of the image change frequency, image distribution state, image shape, similarity between images, etc. of the pressure cloud map, or input the pressure cloud map into a preset The neural network model obtains the current state of the user's body output by the preset neural network model. The current state of the user's body includes a first state and a second state, the first state is a blood pressure measurable state, and the second state is an unmeasurable blood pressure state.

For example, if the pressure contour of the user's sole is the pressure contour of the user's sole, the pressure value corresponding to the pressure contour of the user's sole is within the first preset range, and the image change frequency of the pressure contour of the user's sole is consistent with the preset frequency, or the user The pressure value corresponding to the pressure cloud map of the sole of the foot is within the first preset range, and within the preset time period, the distribution state of the pressure cloud map of the user's sole is consistent with the first preset distribution state, then it is determined that the current state of the user's body is The first state, otherwise, it is determined that the current state of the user's body is the second state.

If the pressure cloud map is the pressure cloud map of the user's buttocks, the pressure value corresponding to the pressure cloud map of the user's buttocks is within the second preset range, and the distribution state of the pressure cloud map of the user's buttocks is consistent with the second preset distribution state, then determine the user's body pressure. The current state is the first state, otherwise, the current state of the user's body is determined to be the second state.

If the pressure cloud map is the pressure cloud map of the user's head, the pressure value corresponding to the pressure cloud map of the user's head is within the third preset range, and within the preset time period, the shape of the pressure cloud map of the user's head is consistent with the preset shape, Then, the current state of the user's body is determined to be the first state, otherwise, the current state of the user's body is determined to be the second state.

S103: If the current state of the user's body is the first state, start a blood pressure measurement task.

In a possible implementation manner, after determining the current state of the user's body according to the pressure cloud map, the electronic device determines a corresponding blood pressure calculation model according to the current state of the user's body. For example, the first state includes the state where the user is lying flat and The user is in the state of lying on the side. If the current state of the user's body is the lying state, the blood pressure calculation model is determined to be the blood pressure calculation model corresponding to the lying state. If the current state of the user's body is the lying state, the blood pressure calculation model is determined as The blood pressure calculation model corresponding to the side lying state. After starting the blood pressure measurement task, the user's blood pressure is calculated according to the corresponding blood pressure calculation model.

S104: If it is detected that the current state of the user's body changes from the first state to the second state, stop the blood pressure measurement task.

In the above embodiment, the electronic device obtains the pressure contour of the preset part of the user's body, and determines the current state of the user's body according to the pressure contour of the preset part of the user's body. If the current state of the user's body is the first state, the electronic device starts blood pressure measurement. Task. Since the pressure cloud map is used to describe the pressure distribution information of the preset body part of the user, and the slight change of the user's body state will cause the pressure distribution of the preset body part to change, therefore, the pressure cloud map of the preset body part of the user can be accurately identified. The user state is determined and the blood pressure measurement task is started according to the accurate user state, which can improve the accuracy of blood pressure measurement.

It should be understood that the size of the sequence number of each step in the above-mentioned embodiment does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Based on the same inventive concept, an embodiment of the present application also provides an electronic device. As shown in FIG. 9 , the electronic device provided by the embodiment of the present application includes a processor 110, a memory 120, an input unit 130, a display unit 140, a sensor 150, Audio circuit 160 and communication module 170 . Those skilled in the art can understand that the structure shown in FIG. 9 does not constitute a limitation on the electronic device, and may include more or less components than the one shown, or combine some components, or arrange different components.

The memory 120 may be used to store software programs and modules, and the processor 110 executes various functional applications and data processing of the electronic device by running the software programs and modules stored in the memory 120 . The memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like; Data created by the use of electronic equipment (such as audio data, phone book, etc.), etc. Additionally, memory 120 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 130 may be used to receive input numerical or character information, and generate key signal input related to user settings and function control of the electronic device. Specifically, the input unit 130 may include a touch panel 131 and other input devices 132 . The touch panel 131, also referred to as a touch screen, can collect the user's touch operations on or near it (such as the user's finger, stylus, etc., any suitable objects or accessories on or near the touch panel 131 ). operation), and drive the corresponding connection device according to the preset program. Optionally, the touch panel 131 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 110, and can receive the command sent by the processor 110 and execute it. In addition, the touch panel 131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. Besides the touch panel 131 , the input unit 130 may also include other input devices 132 . Specifically, other input devices 132 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The display unit 140 may be used to display information input by the user or information provided to the user and various menus of the electronic device. The display unit 140 may include a display panel 141, and optionally, the display panel 141 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), and the like. Further, the touch panel 131 can cover the display panel 141. When the touch panel 131 detects a touch operation on or near it, it transmits it to the processor 110 to determine the type of the touch event, and then the processor 110 determines the type of the touch event according to the touch event. Type provides corresponding visual output on display panel 141 . Although in FIG. 9 , the touch panel 131 and the display panel 141 are used as two independent components to realize the input and input functions of the electronic device, but in some embodiments, the touch panel 131 and the display panel 141 may be integrated And realize the input and output functions of electronic equipment.

The electronic device may also include at least one sensor 150, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light, and the proximity sensor may turn off the display panel 141 and the display panel 141 when the electronic device is moved to the ear. / or backlight. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that recognize the posture of electronic devices (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can be configured on electronic devices, here No longer.

The audio circuit 160, the speaker 161, and the microphone 162 may provide an audio interface between the user and the electronic device. The audio circuit 160 can transmit the received audio data converted electrical signal to the speaker 161, and the speaker 161 converts it into a sound signal for output; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, which is converted by the audio circuit 160 After receiving, it is converted into audio data, and then the audio data is output to the processor 110 for processing, and then sent to, for example, another electronic device through the RF circuit 110, or the audio data is output to the memory 120 for further processing.

The communication module 170 can be used to support data exchange between the electronic device and other electronic devices including wireless communication such as BT, WLAN (such as Wi-Fi), Zigbee, FM, NFC, IR, or general 2.4G/5G wireless communication technologies .

The processor 110 is the control center of the electronic device, using various interfaces and lines to connect various parts of the entire electronic device, by running or executing the software programs and/or modules stored in the memory 120, and calling the data stored in the memory 120. , perform various functions of electronic equipment and process data, so as to monitor electronic equipment as a whole. Optionally, the processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. , the modem processor mainly deals with wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 110 .

It should be noted that the information exchange, execution process and other contents between the above-mentioned devices/units are based on the same concept as the method embodiments of the present application. For specific functions and technical effects, please refer to the method embodiments section. It is not repeated here.

In the foregoing embodiments, the description of each embodiment has its own emphasis. For parts that are not described or described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. Module completion, that is, dividing the internal structure of the device into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit, and the above-mentioned integrated units may adopt hardware. It can also be realized in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above-mentioned system, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the present application realizes all or part of the processes in the methods of the above embodiments, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When executed by a processor, the steps of each of the above method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like. The computer-readable medium may include at least: any entity or device capable of carrying the computer program code to the photographing device/electronic device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media. For example, U disk, mobile hard disk, disk or CD, etc.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In the embodiments provided in this application, it should be understood that the disclosed apparatus/network device and method may be implemented in other manners. For example, the apparatus/network device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units. Or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Finally, it should be noted that: the above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or replacements within the technical scope disclosed in the present application should be covered by the present application. within the scope of protection of the application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (11)

1. A blood pressure measurement method, comprising:

   obtaining a pressure cloud map of a preset part of the user's body, where the pressure cloud map is used to describe the pressure distribution information of the preset part of the user's body;

   Determine the current state of the user's body according to the pressure cloud map;

   If the current state of the user's body is the first state, a blood pressure measurement task is started.
2. The method according to claim 1, wherein the acquiring a pressure cloud map of a preset part of the user's body comprises:

   Acquire a pressure signal of the preset part of the user's body sent by a pressure sensor, the pressure sensor includes at least one sensor unit, the at least one sensor unit forms an array according to a preset arrangement rule, and the pressure signal includes at least one pressure value , each of the sensor units corresponds to one of the pressure values;

   The pressure cloud map of the preset part of the user's body is determined according to the pressure value and the preset arrangement rule.
3. The method according to claim 2, wherein the determining the pressure cloud map of the preset part of the user's body according to the pressure value and the preset arrangement rule comprises:

   The pressure cloud map of the preset part of the user's body is determined according to the pressure value, the preset arrangement rule and pre-stored correction information, and the pre-stored correction information is used to determine the pressure value and the pressure cloud map on the pressure cloud map. The mapping relationship of grayscale values.
4. The method according to any one of claims 1 to 3, wherein after the blood pressure measurement task is started, the method further comprises:

   Determine the blood pressure calculation model according to the pressure cloud map of the preset part of the user's body;

   The user's blood pressure is calculated according to the blood pressure calculation model.
5. The method according to any one of claims 1 to 4, wherein determining the current state of the user's body according to the pressure cloud map comprises:

   The current state of the user's body is determined according to the image change frequency, distribution state and/or shape of the pressure cloud map.
6. The method according to claim 5, wherein the pressure cloud map of the preset part of the user's body includes a pressure cloud map of the sole of the user's foot, and correspondingly, if the current state of the user's body is the first state, then Initiate blood pressure measurement tasks, including:

   If the pressure value corresponding to the pressure contour of the user's sole is within the first preset range, and the image change frequency of the pressure contour of the user's sole is consistent with the preset frequency, or

   The pressure value corresponding to the pressure cloud map of the user's sole is within a first preset range, and within the preset time period, the distribution state of the pressure cloud map of the user's sole is consistent with the first preset distribution state, then it is determined. The current state of the user's body is the first state, and the blood pressure measurement task is started.
7. The method according to claim 5, wherein the pressure cloud map of the preset part of the user's body includes a pressure cloud map of the user's buttocks, and correspondingly, if the current state of the user's body is the first state, start the Blood pressure measurement tasks, including:

   If the pressure value corresponding to the pressure contour of the user's buttocks is within the second preset range, and the distribution state of the pressure contour of the user's buttocks is consistent with the second preset distribution state, the current state of the user's body is determined as In the first state, the blood pressure measurement task is started.
8. The method according to claim 5, wherein the pressure cloud map of the preset part of the user's body includes a pressure cloud map of the user's head, and correspondingly, if the current state of the user's body is the first state, then Initiate blood pressure measurement tasks, including:

   If the pressure value corresponding to the pressure cloud map of the user's head is within the third preset range, and within a preset time period, the shape of the pressure cloud map of the user's head is consistent with the preset shape, then determine the user's body The current state is the first state, and the blood pressure measurement task is started.
9. The method according to any one of claims 1 to 8, wherein after the starting the blood pressure measurement task, the method further comprises:

   If it is detected that the current state of the user's body changes from the first state to the second state, the blood pressure measurement task is stopped.
10. An electronic device comprising a processor for executing a computer program stored in a memory to implement the method according to any one of claims 1-9.
11. A computer-readable storage medium storing a computer program, characterized in that, when the computer program is executed by a processor, the method according to any one of claims 1 to 9 is implemented.

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