CN113349747B

CN113349747B - Blood pressure measuring method and device and blood pressure measuring equipment

Info

Publication number: CN113349747B
Application number: CN202010145030.7A
Authority: CN
Inventors: 张慧; 傅小煜; 黄振龙; 周林峰; 李靖
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2023-02-03
Anticipated expiration: 2040-03-04
Also published as: CN113349747A

Abstract

The embodiment of the application provides a method and a device for measuring blood pressure and blood pressure measuring equipment, wherein in the method for measuring blood pressure, after pulse wave pressure signals of a user are obtained, the slope of the pulse wave pressure signals is calculated, and continuous pressure signal segments with the slopes within a preset range are extracted; predicting a pressure signal line in a period adjacent to the continuous pressure signal segment according to the continuous pressure signal segment, and obtaining a predicted pressure value in the adjacent period according to the predicted pressure signal line; and determining whether the body part of the user moves or not according to the pressure signal line and the predicted pressure value, acquiring the movement degree when the body part of the user moves, processing the pulse wave pressure signal according to the movement degree of the body part, and determining the blood pressure value of the user according to the processed pulse wave pressure signal, so that the hand movement can be detected in the blood pressure measurement process, the accuracy and the success rate of blood pressure detection are improved, and the user experience is improved.

Description

Blood pressure measuring method and device and blood pressure measuring equipment

Technical Field

The embodiment of the application relates to the technical field of intelligent terminals, in particular to a blood pressure measuring method and device and blood pressure measuring equipment.

Background

It is well known that hypertension is an important public health problem, and it increases the risk of heart disease, stroke, renal failure, etc., and seriously affects the health of people. Moreover, the number of patients with hypertension is huge, according to the global abstract of the world health organization for hypertension, more than 10 hundred million people are affected by hypertension in 2013 globally, and 940 million people die every year globally and can be attributed to hypertension. Of these, 2.5 million people in China have hypertension, but more than 1.25 million people do not know that they have hypertension. So that many people do not know that the people suffer from hypertension, on one hand, the hypertension is an invisible silent killer with few symptoms, and on the other hand, the long-term monitoring of the blood pressure is difficult, so that the early diagnosis of the hypertension is difficult. In addition, even patients diagnosed with hypertension have difficulty in well controlling blood pressure because long-term monitoring of blood pressure is difficult. Therefore, the blood pressure monitoring device is very important for monitoring the blood pressure accurately for a long time, and has important values for early discovery, full treatment and good control of the hypertension.

The existing blood pressure measuring gold standard methods include invasive methods, which measure blood pressure by directly measuring the pressure of the inner wall of a blood vessel, and non-invasive blood pressure measuring methods, such as: cuff-based auscultatory methods for measuring blood pressure have the major disadvantage of being invasive and/or inconvenient to carry and therefore incapable of long-term testing. Based on the defects, some wearable blood pressure measuring methods also appear, including oscillography, volume clamp method, arterial tension method, pressure + photoplethysmography (Photo pulse graph; hereinafter referred to as PPG) fusion and other methods. The blood pressure measuring method based on the oscillography has high maturity and accuracy.

The blood pressure measuring method based on the oscillography is mainly used for indirectly measuring the blood pressure of the radial artery by measuring the pulse wave of the wrist of a user and an envelope curve thereof. However, in the blood pressure measurement process based on the oscillography, the amplitude and the frequency of the pulse wave can be seriously influenced by the hand motion (such as bending the wrist and/or buckling the fingers) of the user, so that the blood pressure measurement is inaccurate, and the reasonable blood pressure value cannot be even given by the serious hand motion. However, the prior art does not find a scheme for detecting and processing hand movements in the blood pressure measurement process.

Disclosure of Invention

The embodiment of the application provides a blood pressure measuring method and device and blood pressure measuring equipment, and further provides a computer readable storage medium, so that the hand motion is detected in the blood pressure measuring process, the accuracy and the success rate of blood pressure detection are improved, and the user experience is improved.

In a first aspect, an embodiment of the present application provides a method for measuring blood pressure, including:

acquiring a pulse wave pressure signal of a user, wherein the pulse wave pressure signal is measured by a blood pressure measuring device on a body part of the user wearing the blood pressure measuring device; specifically, after the pulse wave pressure signal of the user is obtained, the obtained pulse wave pressure signal can be processed to eliminate the power frequency and zero drift of the pressure pulse wave signal, and then the high-frequency pulse wave signal is filtered by adopting low-pass sliding smooth filtering; the body part of the user wearing the blood pressure measuring device may be a wrist or an upper arm, and the specific position of the body part is not limited in this embodiment;

calculating the slope of the pulse wave pressure signal, and extracting a continuous pressure signal section with the slope in a preset range; specifically, when calculating the slope of the pulse wave pressure signal, it is necessary to calculate the slope of the pulse wave pressure signal from a time when the pressure is greater than a certain threshold, and then extract a continuous pressure signal segment having a slope within a predetermined range; the pressure is applied to the body part by the blood pressure measuring device, the threshold value may be set by itself when the blood pressure measuring device is specifically implemented, and the size of the threshold value is not limited in this embodiment; the predetermined range may be set according to implementation requirements during specific implementation, and the size of the predetermined range is not limited in this embodiment;

predicting a pressure signal line in a period adjacent to the continuous pressure signal segment according to the continuous pressure signal segment, and obtaining a predicted pressure value in the adjacent period according to the predicted pressure signal line;

determining whether the body part of the user moves according to the predicted pressure signal line of the adjacent time interval and the predicted pressure value of the adjacent time interval;

when the body part moves, acquiring the movement degree of the body part, processing the pulse wave pressure signal according to the movement degree of the body part, and determining the blood pressure value of the user according to the processed pulse wave pressure signal.

In the method for measuring the blood pressure, after pulse wave pressure signals of a user are obtained, the slope of the pulse wave pressure signals is calculated, and continuous pressure signal segments with the slopes within a preset range are extracted; predicting a pressure signal line in a period adjacent to the continuous pressure signal segment according to the continuous pressure signal segment, and obtaining a predicted pressure value in the adjacent period according to the predicted pressure signal line; and determining whether the body part of the user moves according to the predicted pressure signal line of the adjacent time interval and the predicted pressure value of the adjacent time interval, acquiring the movement degree of the body part when the body part moves, processing the pulse wave pressure signal according to the movement degree of the body part, and determining the blood pressure value of the user according to the processed pulse wave pressure signal, so that the hand movement can be detected in the blood pressure measuring process, the accuracy and the success rate of blood pressure detection are improved, and the user experience is improved.

In one possible implementation manner, determining whether the body part of the user moves according to the predicted pressure signal line in the adjacent time interval and the predicted pressure value in the adjacent time interval includes:

determining that the body part of the user moves if a difference between the predicted pressure value of the adjacent time period and the actual pressure value of the adjacent time period is greater than a predetermined pressure threshold value and a slope of a pressure signal line of the adjacent time period obtained by prediction is outside the predetermined range; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

Wherein, the real pressure value of the adjacent time interval is obtained by detecting the pulse wave pressure signal measured by the blood pressure measuring equipment in the adjacent time interval; the predetermined pressure threshold may be set according to implementation requirements in specific implementation, and the size of the predetermined pressure threshold is not limited in this embodiment.

And if the difference between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval is less than or equal to a predetermined pressure threshold value, or the slope of the pressure signal line of the adjacent time interval is predicted to be within the predetermined range, it can be determined that the body part of the user is not moving.

In one possible implementation manner, the obtaining the motion degree of the body part includes:

determining the motion degree of the body part according to the difference value between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval and the slope of the pressure signal line of the adjacent time interval obtained by prediction; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval. In a specific implementation, the corresponding relationship between the difference between the predicted pressure value and the actual pressure, the slope and the degree of motion of the body part may be obtained through measurement, so that after obtaining the difference between the predicted pressure value in the adjacent time interval and the actual pressure value in the adjacent time interval and the slope, the degree of motion of the body part may be obtained according to the corresponding relationship.

In one possible implementation manner, predicting the pressure signal line of the adjacent time interval of the continuous pressure signal segment according to the continuous pressure signal segment includes:

if the duration of the continuous pressure signal segment is less than the preset duration, controlling the blood pressure measuring equipment to continuously pressurize until the duration of the continuous pressure signal segment reaches the preset duration; the preset time length may be set according to implementation requirements in specific implementation, and the length of the preset time length is not limited in this embodiment, for example, the preset time length may be 1 second;

and performing linear fitting on the pressure signal of the adjacent time period before the continuous pressure signal section according to the continuous pressure signal section of which the time length reaches the preset time length to obtain the pressure signal line of the adjacent time period before the continuous pressure signal section.

if the duration of the continuous pressure signal segment is greater than or equal to a preset duration, extracting the continuous pressure signal segment with the duration of the preset duration from the continuous pressure signal segment; the preset time length may be set according to implementation requirements when the implementation is specifically implemented, and the length of the preset time length is not limited in this embodiment, for example, the preset time length may be 1 second; in a specific implementation, a continuous pressure signal segment with the duration of the predetermined duration may be extracted from the end segment of the continuous pressure signal segment;

and according to the extracted continuous pressure signal segment, performing linear fitting on the pressure signal of the adjacent time period after the extracted continuous pressure signal segment to obtain the pressure signal line of the adjacent time period after the extracted continuous pressure signal segment.

In one possible implementation manner, the processing the pulse wave pressure signal according to the degree of motion of the body part includes:

when the movement degree of the body part is less than or equal to a first movement degree threshold value, discarding the pulse wave pressure signal measured by the blood pressure measuring device in the period when the body part moves, reducing the pressure value applied to the body part by the blood pressure measuring device to the pressure value before the discarding operation is performed, and starting to re-pressurize and measure from the pressure value before the discarding operation is performed; alternatively, the first and second electrodes may be,

and when the movement degree of the body part is smaller than or equal to a first movement degree threshold value, discarding the pulse wave pressure signals measured by the blood pressure measuring equipment in the movement period of the body part, and filling the pulse wave pressure signals in the movement period of the body part in a signal processing mode.

The first motion degree threshold may be set according to implementation requirements in specific implementation, and the size of the first motion degree threshold is not limited in this embodiment;

and when the motion degree of the body part is larger than or equal to a second motion degree threshold value, reminding the user to keep still, reducing the pressure value applied to the body part by the blood pressure measuring equipment to a preset pressure value, and starting pressurization measurement from the preset pressure value again after the user keeps still.

The second motion degree threshold may be set according to implementation requirements in specific implementation, and the size of the second motion degree threshold is not limited in this embodiment; the magnitude of the predetermined pressure value may be set according to implementation requirements during specific implementation, and the magnitude of the predetermined pressure value is not limited in this embodiment, for example, the predetermined pressure value may be zero.

In a second aspect, an embodiment of the present application provides a blood pressure measuring device provided in a blood pressure measuring apparatus, the blood pressure measuring device including:

an acquisition module, configured to acquire a pulse wave pressure signal of a user, where the pulse wave pressure signal is measured by a blood pressure measurement device at a body part of the user wearing the blood pressure measurement device;

the calculation module is used for calculating the slope of the pulse wave pressure signal and extracting a continuous pressure signal section with the slope within a preset range;

the prediction module is used for predicting the pressure signal line of the adjacent time period of the continuous pressure signal segment according to the continuous pressure signal segment and obtaining the predicted pressure value of the adjacent time period according to the predicted pressure signal line;

a determination module, configured to determine whether the body part of the user moves according to the predicted pressure signal line in the neighboring time period and the predicted pressure value in the neighboring time period;

the acquisition module is also used for acquiring the motion degree of the body part when the body part moves;

and the determining module is also used for processing the pulse wave pressure signal according to the movement degree of the body part and determining the blood pressure value of the user according to the processed pulse wave pressure signal.

In one possible implementation manner, the determining module is specifically configured to determine that the body part of the user moves when a difference between the predicted pressure value of the adjacent time interval and the actual pressure value of the adjacent time interval is greater than a predetermined pressure threshold and a slope of a pressure signal line of the adjacent time interval obtained by prediction is outside the predetermined range; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

In one possible implementation manner, the obtaining module is specifically configured to determine the degree of motion of the body part according to a difference between the predicted pressure value in the adjacent time period and the actual pressure value in the adjacent time period, and a slope of a pressure signal line in the adjacent time period obtained by prediction; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

In one possible implementation manner, the prediction module is specifically configured to control the blood pressure measuring device to continue to pressurize to the continuous pressure signal segment for the predetermined time period when the time period of the continuous pressure signal segment is less than the predetermined time period; and performing linear fitting on the pressure signals of the adjacent time period before the continuous pressure signal segment according to the continuous pressure signal segment with the time length reaching the preset time length to obtain the pressure signal line of the adjacent time period before the continuous pressure signal segment.

In one possible implementation manner, the prediction module is specifically configured to, when a time length of the continuous pressure signal segment is greater than or equal to a predetermined time length, extract a continuous pressure signal segment having a time length that is the predetermined time length from the continuous pressure signal segment; and according to the extracted continuous pressure signal segment, performing linear fitting on the pressure signal of the adjacent time period after the extracted continuous pressure signal segment to obtain the pressure signal line of the adjacent time period after the extracted continuous pressure signal segment.

In one possible implementation manner, the determining module is specifically configured to discard the pulse wave pressure signal measured by the blood pressure measuring device during the period when the body part moves when the degree of movement of the body part is less than or equal to a first degree of movement threshold, reduce a pressure value applied to the body part by the blood pressure measuring device to a pressure value before the discarding operation is performed, and start to perform the pressurization measurement again from the pressure value before the discarding operation is performed; or when the movement degree of the body part is less than or equal to a first movement degree threshold value, discarding the pulse wave pressure signal measured by the blood pressure measuring equipment in the movement period of the body part, and filling the pulse wave pressure signal in the movement period of the body part in a signal processing manner.

In one possible implementation manner, the determining module is specifically configured to, when the degree of motion of the body part is greater than or equal to a second degree of motion threshold, remind the user to remain stationary, reduce a pressure value applied to the body part by the blood pressure measurement device to a predetermined pressure value, and start the pressure measurement from the predetermined pressure value again after the user remains stationary.

In a third aspect, an embodiment of the present application provides a blood pressure measurement device, including:

a pressurizing module; a data acquisition module; one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs including instructions that, when executed by the blood pressure measurement device, cause the blood pressure measurement device to perform the steps of:

acquiring a pulse wave pressure signal of a user, wherein the pulse wave pressure signal is measured by a blood pressure measuring device on a body part of the user wearing the blood pressure measuring device;

calculating the slope of the pulse wave pressure signal, and extracting a continuous pressure signal section with the slope in a preset range;

In one possible implementation manner, when the instruction is executed by the blood pressure measurement device, the step of determining whether the body part of the user moves according to the predicted pressure signal line of the adjacent time period and the predicted pressure value of the adjacent time period, which are obtained through prediction, by the blood pressure measurement device includes:

In one possible implementation manner, when the instruction is executed by the blood pressure measurement device, the step of causing the blood pressure measurement device to obtain the degree of movement of the body part includes:

determining the motion degree of the body part according to the difference value between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval and the slope of the pressure signal line of the adjacent time interval obtained by prediction; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

In one possible implementation manner, when the instruction is executed by the blood pressure measurement device, the step of causing the blood pressure measurement device to predict the pressure signal line of the adjacent period of the continuous pressure signal segment according to the continuous pressure signal segment includes:

if the duration of the continuous pressure signal segment is less than the preset duration, controlling the blood pressure measuring equipment to continuously pressurize until the duration of the continuous pressure signal segment reaches the preset duration;

if the duration of the continuous pressure signal segment is greater than or equal to a preset duration, extracting the continuous pressure signal segment with the duration being the preset duration from the continuous pressure signal segment;

In one possible implementation manner, when the instruction is executed by the blood pressure measurement device, the step of processing the pulse wave pressure signal according to the degree of motion of the body part by the blood pressure measurement device includes:

and when the motion degree of the body part is greater than or equal to a second motion degree threshold value, reminding the user to keep still, reducing the pressure value applied to the body part by the blood pressure measuring equipment to a preset pressure value, and starting pressurization measurement from the preset pressure value again after the user keeps still.

It should be understood that the second to third aspects of the embodiment of the present application are consistent with the technical solution of the first aspect of the embodiment of the present application, and beneficial effects achieved by the aspects and the corresponding possible implementation are similar, and are not described again.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method provided in the first aspect.

In a fifth aspect, the present application provides a computer program, which is used to execute the method provided in the first aspect when the computer program is executed by a computer.

In a possible design, the program in the fifth aspect may be stored in whole or in part on a storage medium packaged with the processor, or in part or in whole on a memory not packaged with the processor.

Drawings

FIG. 1 is a flow chart of an embodiment of a method for measuring blood pressure according to the present application;

FIG. 2 is a flow chart of another embodiment of a method for measuring blood pressure according to the present application;

FIG. 3 is a flow chart of another embodiment of a method for measuring blood pressure according to the present application;

FIG. 4 is a flow chart of another embodiment of the method for measuring blood pressure of the present application;

FIG. 5 is a flow chart of another embodiment of a method for measuring blood pressure according to the present application;

FIG. 6 is a flow chart of another embodiment of a method for measuring blood pressure of the present application;

FIG. 7 is a flow chart of another embodiment of the method for measuring blood pressure of the present application;

FIG. 8 is a schematic structural diagram of an embodiment of a blood pressure measuring device according to the present application;

fig. 9 is a schematic structural diagram of an embodiment of the blood pressure measuring device of the present application.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

The blood pressure measuring method based on the oscillography is mainly used for indirectly measuring the blood pressure of the radial artery by measuring the pulse wave of the wrist of a user and an envelope curve thereof. However, in the blood pressure measurement process based on the oscillography, the amplitude and the frequency of the pulse wave can be seriously influenced by the hand motion (such as bending the wrist and/or buckling the fingers) of the user, so that the blood pressure measurement is inaccurate, and the reasonable blood pressure value cannot be even given by the serious hand motion.

The embodiment of the application provides a blood pressure measuring method, which is based on an oscillography principle, detects whether a user has a hand motion in the blood pressure measuring process through pressure waves, discards manual segment data if a slight hand motion is detected, enables external applied pressure to be recovered to the pressure before manual operation, and collects data again until the end; if serious hand motion is detected, the user is reminded to keep still and repressurize the measurement, so that the accuracy of the blood pressure measurement is improved.

Fig. 1 is a flowchart of an embodiment of a method for measuring blood pressure according to the present application, and as shown in fig. 1, the method for measuring blood pressure may include:

step 101, obtaining a pulse wave pressure signal of a user, wherein the pulse wave pressure signal is measured by a blood pressure measuring device on a body part of the user wearing the blood pressure measuring device.

Specifically, after the pulse wave pressure signal of the user is acquired, the acquired pulse wave pressure signal can be processed to eliminate the power frequency and zero drift of the pressure pulse wave signal, and then the high-frequency pulse wave signal is filtered by adopting low-pass sliding smoothing filtering.

The body part of the user wearing the blood pressure measuring device may be a wrist or an upper arm, and the specific position of the body part is not limited in this embodiment.

And 102, calculating the slope of the pulse wave pressure signal, and extracting a continuous pressure signal section with the slope in a preset range.

Specifically, when calculating the slope of the pulse wave pressure signal, it is necessary to calculate the slope of the pulse wave pressure signal from a time when the pressure is greater than a certain threshold value, and then extract a continuous pressure signal segment having a slope within a predetermined range.

The pressure is applied to the body part by a blood pressure measuring device, the threshold value may be set by itself when the blood pressure measuring device is specifically implemented, and the size of the threshold value is not limited in this embodiment; the predetermined range may be set according to implementation requirements in specific implementations, and the size of the predetermined range is not limited in this embodiment.

And 103, predicting the pressure signal line of the adjacent time period of the continuous pressure signal segment according to the continuous pressure signal segment, and obtaining the predicted pressure value of the adjacent time period according to the predicted pressure signal line.

And 104, determining whether the body part of the user moves or not according to the predicted pressure signal line of the adjacent time interval and the predicted pressure value of the adjacent time interval.

And 105, when the body part moves, acquiring the movement degree of the body part, processing the pulse wave pressure signal according to the movement degree of the body part, and determining the blood pressure value of the user according to the processed pulse wave pressure signal.

Fig. 2 is a flowchart of another embodiment of the blood pressure measuring method of the present application, as shown in fig. 2, in the embodiment shown in fig. 1 of the present application, step 104 may include:

step 201, if the difference between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval is larger than a predetermined pressure threshold value, and the slope of the pressure signal line of the adjacent time interval is predicted to be out of the predetermined range, determining that the body part of the user moves.

Fig. 3 is a flowchart of another embodiment of the method for measuring blood pressure of the present application, as shown in fig. 3, in the embodiment shown in fig. 1 of the present application, step 105 may include:

step 301, when the body part moves, determining a movement degree of the body part according to a difference value between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval and a slope of a pressure signal line of the adjacent time interval obtained by prediction; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

In a specific implementation, the corresponding relationship between the difference between the predicted pressure value and the actual pressure, the slope, and the degree of motion of the body part may be obtained by measurement, so that after obtaining the difference between the predicted pressure value in the adjacent time interval and the actual pressure value in the adjacent time interval, and the slope, the degree of motion of the body part may be obtained according to the corresponding relationship.

Step 302, processing the pulse wave pressure signal according to the degree of motion of the body part, and determining the blood pressure value of the user according to the processed pulse wave pressure signal.

Fig. 4 is a flowchart of a further embodiment of the blood pressure measuring method of the present application, as shown in fig. 4, in the embodiment shown in fig. 1 of the present application, step 103 may include:

step 401, if the duration of the continuous pressure signal segment is less than a predetermined duration, controlling the blood pressure measuring device to continue pressurizing until the duration of the continuous pressure signal segment reaches the predetermined duration.

The preset time length may be set according to implementation requirements in specific implementation, and the length of the preset time length is not limited in this embodiment, for example, the preset time length may be 1 second.

And 402, performing linear fitting on the pressure signals of the adjacent time period before the continuous pressure signal segment according to the continuous pressure signal segment with the time length reaching the preset time length to obtain the pressure signal line of the adjacent time period before the continuous pressure signal segment.

And step 403, obtaining the predicted pressure value of the adjacent time period according to the pressure signal line obtained by prediction.

Fig. 5 is a flowchart of a further embodiment of the blood pressure measuring method of the present application, and as shown in fig. 5, in the embodiment shown in fig. 1 of the present application, step 103 may include:

and step 501, if the duration of the continuous pressure signal segment is greater than or equal to a preset duration, extracting the continuous pressure signal segment with the duration of the preset duration from the continuous pressure signal segment.

The preset time period may be set according to implementation requirements when the implementation is specifically implemented, and the length of the preset time period is not limited in this embodiment, for example, the preset time period may be 1 second.

In a specific implementation, a continuous pressure signal segment having a duration of the predetermined duration may be extracted from an end of the continuous pressure signal segment.

And 502, performing linear fitting on the pressure signals in the adjacent time period after the extracted continuous pressure signal segment according to the extracted continuous pressure signal segment to obtain a pressure signal line in the adjacent time period after the extracted continuous pressure signal segment.

In step 503, the predicted pressure value of the adjacent time interval is obtained according to the pressure signal line obtained by prediction.

Fig. 6 is a flowchart of another embodiment of the method for measuring blood pressure of the present application, as shown in fig. 6, in the embodiment shown in fig. 1 of the present application, step 105 may include:

step 601, when the body part moves, obtaining the movement degree of the body part.

Step 602, when the degree of motion of the body part is less than or equal to a first degree of motion threshold, discarding the pulse wave pressure signal measured by the blood pressure measurement device during the period of motion of the body part, reducing the pressure value applied to the body part by the blood pressure measurement device to the pressure value before the discarding operation is performed, and starting to re-pressurize the measurement from the pressure value before the discarding operation is performed; or, when the degree of motion of the body part is less than or equal to a first degree of motion threshold, discarding the pulse wave pressure signal measured by the blood pressure measuring device during the period of motion of the body part, and filling the pulse wave pressure signal during the period of motion of the body part by means of signal processing.

The first motion degree threshold may be set according to implementation requirements when the first motion degree threshold is implemented specifically, and the size of the first motion degree threshold is not limited in this embodiment.

Specifically, if the degree of motion of the body part is less than or equal to a first degree of motion threshold, it may be determined that the degree of motion of the body part is a slight motion, that is, when the degree of motion of the body part is a slight motion, the current small segment of pulse wave pressure signal may be discarded, the pressure value applied to the body part by the blood pressure measurement device is reduced to the pressure value before the discarding operation is performed, and pressurization is continued, so that complete data in the whole pressurization process may still be obtained; or, the pulse wave pressure signal of the time period when the body part moves is filled in by means of signal processing without reducing the pressure applied to the body part by the blood pressure measuring device and continuously pressurizing.

Step 603, determining the blood pressure value of the user according to the processed pulse wave pressure signal.

Fig. 7 is a flowchart of another embodiment of the method for measuring blood pressure of the present application, as shown in fig. 7, in the embodiment shown in fig. 1 of the present application, step 105 may include:

step 701, when the body part moves, obtaining the movement degree of the body part.

Step 702, when the motion degree of the body part is greater than or equal to a second motion degree threshold value, reminding the user to keep still, reducing the pressure value applied to the body part by the blood pressure measuring device to a preset pressure value, and after the user keeps still, starting the pressurization measurement from the preset pressure value again.

The second motion degree threshold may be set according to implementation requirements when the second motion degree threshold is implemented specifically, and the size of the second motion degree threshold is not limited in this embodiment; the predetermined pressure value may be set according to implementation requirements when the implementation is specifically performed, and the size of the predetermined pressure value is not limited in this embodiment, for example, the predetermined pressure value may be zero.

Specifically, if the degree of motion of the body part is greater than or equal to the second degree of motion threshold, it may be determined that the degree of motion of the body part is a sharp motion, and at this time, the user may be prompted to remain stationary, and the pressure value applied to the body part by the blood pressure measurement device may be reduced to a predetermined pressure value, and after the user returns to a standstill, the pressure measurement may be restarted from the predetermined pressure value.

And 703, determining the blood pressure value of the user according to the processed pulse wave pressure signal.

It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.

Fig. 8 is a schematic structural diagram of an embodiment of a blood pressure measuring device according to the present application, and as shown in fig. 8, the blood pressure measuring device 80 is disposed in a blood pressure measuring apparatus, and may include: an acquisition module 81, a calculation module 82, a prediction module 83 and a determination module 84; it should be understood that the blood pressure measuring device 80 may correspond to the blood pressure measuring apparatus 900 in fig. 9. The functions of the obtaining module 81, the calculating module 82, the predicting module 83 and the determining module 84 can be realized by the processor 910 in the blood pressure measuring device 900 shown in fig. 9.

The acquiring module 81 is configured to acquire a pulse wave pressure signal of a user, where the pulse wave pressure signal is measured by a blood pressure measuring device at a body part of the user wearing the blood pressure measuring device;

a calculation module 82, configured to calculate a slope of the pulse wave pressure signal, and extract a continuous pressure signal segment with a slope in a predetermined range;

a prediction module 83, configured to predict, according to the continuous pressure signal segment, a pressure signal line in a neighboring time period of the continuous pressure signal segment, and obtain, according to the predicted pressure signal line, a predicted pressure value in the neighboring time period;

a determining module 84, configured to determine whether the body part of the user moves according to the predicted pressure signal line in the adjacent time period and the predicted pressure value in the adjacent time period;

the obtaining module 81 is further configured to obtain a motion degree of the body part when the body part moves;

the determining module 84 is further configured to process the pulse wave pressure signal according to the degree of motion of the body part, and determine the blood pressure value of the user according to the processed pulse wave pressure signal.

In one possible implementation manner, the determining module 84 is specifically configured to determine that the body part of the user moves when a difference between the predicted pressure value of the adjacent time interval and the actual pressure value of the adjacent time interval is greater than a predetermined pressure threshold value, and a slope of a pressure signal line of the adjacent time interval obtained by prediction is outside the predetermined range; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

In one possible implementation manner, the obtaining module 81 is specifically configured to determine the degree of motion of the body part according to a difference between the predicted pressure value in the adjacent time period and the actual pressure value in the adjacent time period, and a slope of a pressure signal line in the adjacent time period obtained by prediction; wherein, the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

In one possible implementation manner, the prediction module 83 is specifically configured to, when the duration of the continuous pressure signal segment is less than a predetermined duration, control the blood pressure measurement device to continue to pressurize to the duration of the continuous pressure signal segment to reach the predetermined duration; and performing linear fitting on the pressure signals of the adjacent time period before the continuous pressure signal segment according to the continuous pressure signal segment with the time length reaching the preset time length to obtain the pressure signal line of the adjacent time period before the continuous pressure signal segment.

In one possible implementation manner, the prediction module 83 is specifically configured to, when the duration of the continuous pressure signal segment is greater than or equal to a predetermined duration, extract a continuous pressure signal segment with a duration of the predetermined duration from the continuous pressure signal segment; and according to the extracted continuous pressure signal segment, performing linear fitting on the pressure signal of the adjacent time period after the extracted continuous pressure signal segment to obtain the pressure signal line of the adjacent time period after the extracted continuous pressure signal segment.

In one possible implementation manner, the determining module 84 is specifically configured to discard the pulse wave pressure signal measured by the blood pressure measuring device during the period when the body part moves when the degree of movement of the body part is less than or equal to a first degree of movement threshold, reduce the pressure value applied to the body part by the blood pressure measuring device to a pressure value before the discarding operation is performed, and start the re-pressurization measurement from the pressure value before the discarding operation is performed; or, when the degree of motion of the body part is less than or equal to a first degree of motion threshold, discarding the pulse wave pressure signal measured by the blood pressure measuring device during the period of motion of the body part, and filling the pulse wave pressure signal during the period of motion of the body part by means of signal processing.

In one possible implementation manner, the determining module 84 is specifically configured to, when the degree of motion of the body part is greater than or equal to a second degree of motion threshold, remind the user to keep still, reduce the pressure value applied to the body part by the blood pressure measuring device to a predetermined pressure value, and start pressurization measurement from the predetermined pressure value again after the user keeps still.

The blood pressure measuring device 80 provided in the embodiment shown in fig. 8 can be used to implement the technical solutions of the method embodiments shown in fig. 1 to fig. 7 of the present application, and the implementation principles and technical effects thereof can be further described with reference to the related descriptions in the method embodiments.

It should be understood that the division of the modules of the blood pressure measuring device shown in fig. 8 is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity or physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling by the processing element in software, and part of the modules can be realized in the form of hardware. For example, the obtaining module may be a separately established processing element, or may be implemented by being integrated in a certain chip of the blood pressure measuring device. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, these modules may be integrated together and implemented in the form of a System-On-a-Chip (SOC).

Fig. 9 is a schematic structural diagram of an embodiment of a blood pressure measuring device according to the present application, where the blood pressure measuring device may include:

acquiring a pulse wave pressure signal of a user, wherein the pulse wave pressure signal is measured by a blood pressure measuring device at a body part of the user wearing the blood pressure measuring device;

predicting a pressure signal line in a period adjacent to the continuous pressure signal section according to the continuous pressure signal section, and obtaining a predicted pressure value in the adjacent period according to the predicted pressure signal line;

In one possible implementation manner, when the instruction is executed by the blood pressure measuring device, the step of determining whether the body part of the user moves according to the predicted pressure signal line in the adjacent time period and the predicted pressure value in the adjacent time period, which are obtained through prediction, by the blood pressure measuring device includes:

and performing linear fitting on the pressure signals of the adjacent time period before the continuous pressure signal segment according to the continuous pressure signal segment with the time length reaching the preset time length to obtain the pressure signal line of the adjacent time period before the continuous pressure signal segment.

if the duration of the continuous pressure signal segment is greater than or equal to a preset duration, extracting the continuous pressure signal segment with the duration of the preset duration from the continuous pressure signal segment;

and according to the extracted continuous pressure signal segment, performing linear fitting on the pressure signal in the adjacent time period after the extracted continuous pressure signal segment to obtain a pressure signal line in the adjacent time period after the extracted continuous pressure signal segment.

discarding the pulse wave pressure signal measured by the blood pressure measuring device during the period when the body part is moving when the degree of movement of the body part is less than or equal to a first degree of movement threshold, reducing the pressure value applied to the body part by the blood pressure measuring device to a pressure value before the discarding operation is performed, and starting repressurization measurement from the pressure value before the discarding operation is performed; alternatively, the first and second electrodes may be,

The blood pressure measurement device shown in fig. 9 may be used to perform the functions/steps of the method provided by the embodiments of fig. 1-7 of the present application.

As shown in fig. 9, blood pressure measurement device 900 includes a processor 910, a pressurization module 920, a memory 930, and a data acquisition module 940. The processor 910, the pressurizing module 920, the memory 930 and the data collecting module 940 can communicate with each other via internal connection paths to transmit control and/or data signals, the memory 930 is used for storing a computer program, and the processor 910 is used for calling and running the computer program from the memory 930.

Specifically, the pressurization module 920 may be a micro air pump pressurization module, which includes a micro air pump and an air bag for pressurizing a body part of the user wearing the blood pressure measurement device, and controls the applied pressure change through a pressurization algorithm. The pressurizing module 920 has the following functions: the pressurization can be stopped at any time: when a user is detected to be seriously manual, pressurization can be stopped immediately; the micro-pump power value can be changed: when the degree of movement of the body part of the user is detected to be slight movement, the externally applied pressure can be restored to the pressure before the movement of the user, and the data is collected again to the end.

The data collection module 940 may include a pressure sensor for collecting pulse wave pressure signals. The data acquisition module 940 has the following functions: when the motion degree of the body part of the user is detected to be slight motion, discarding the pulse wave pressure signal of the current small segment, and collecting the pulse wave pressure signal after re-pressurization.

The memory 930 may store data collected by the data collection module 940.

The processor 910 may be a micro-processing unit, and is configured to process the pulse wave pressure signal collected by the data collection module 940 to obtain blood pressure values such as systolic pressure and diastolic pressure. The processor 910 also has a function of detecting whether the body part of the user wearing the blood pressure measuring device moves during the blood pressure measurement process.

Further, the blood pressure measuring device 900 may further include a communication module 950, and the communication module 950 may include at least one of a bluetooth module and/or a Wireless Fidelity (WIFI) module. The Bluetooth module is used for being connected with external intelligent electronic equipment and transmitting data to intelligent electronic equipment such as an intelligent mobile phone for management; the WIFI module is used for connecting WIFI and transmitting data to the cloud, so that the data of the user can be stored for a long time, and personalized service is provided for the user.

Further, the blood pressure measuring device 900 may further include an interaction module 960 for displaying blood pressure and prompting abnormality for the user. The blood pressure display can display the systolic pressure and/or the diastolic pressure through the display screen, and the abnormal prompt can remind a user of abnormal blood pressure conditions through vibration or sound prompt and the like.

In particular implementations, the processor 910 and the memory 930 may be combined into a single processing device, or more generally, separate components, and the processor 910 is configured to execute the program code stored in the memory 930 to implement the functions described above. In particular implementations, the memory 930 may be integrated with the processor 910 or separate from the processor 910.

Optionally, the blood pressure measurement device 900 may also include a power supply 970 for providing power to various components or circuits within the blood pressure measurement device 900.

It should be understood that the blood pressure measurement device 900 shown in fig. 9 is capable of implementing the various processes of the methods provided by the embodiments shown in fig. 1-7. The operations and/or functions of the respective modules in the blood pressure measuring device 900 are respectively for implementing the corresponding procedures in the above-described method embodiments. Reference is made specifically to the description of the method embodiment shown in fig. 1 to 7, and a detailed description is appropriately omitted herein to avoid redundancy.

It should be understood that the processor 910 in the blood pressure measuring device 900 shown in fig. 9 may be a system on chip SOC, and the processor 910 may include a Central Processing Unit (CPU), and may further include other types of processors, such as: an image Processing Unit (hereinafter, referred to as GPU), and the like.

In general, various parts of the processors or processing units within the processor 910 may cooperate to implement the previous method flow, and corresponding software programs for the various parts of the processors or processing units may be stored in the memory 930.

Embodiments of the present application further provide a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is enabled to execute the method provided by the embodiments shown in fig. 1 to 7 of the present application.

Embodiments of the present application further provide a computer program product, which includes a computer program and when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiments shown in fig. 1 to fig. 7 of the present application.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and indicates that three relationships may exist, for example, a and/or B, and may indicate that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and the like, refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of electronic hardware and computer software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A blood pressure measuring apparatus provided in a blood pressure measuring device, the blood pressure measuring apparatus comprising:

the device comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring a pulse wave pressure signal of a user, and the pulse wave pressure signal is measured by blood pressure measuring equipment at a body part of the user wearing the blood pressure measuring equipment;

the calculation module is used for calculating the slope of the pulse wave pressure signal and extracting a continuous pressure signal section with the slope in a preset range;

the prediction module is used for predicting the pressure signal line of the adjacent time period of the continuous pressure signal segment according to the continuous pressure signal segment and obtaining the predicted pressure value of the adjacent time period according to the pressure signal line obtained through prediction;

a determination module, configured to determine whether the body part of the user moves according to the predicted pressure signal line of the adjacent time period and the predicted pressure value of the adjacent time period;

the acquisition module is further used for acquiring the motion degree of the body part when the body part moves;

the determining module is further configured to process the pulse wave pressure signal according to the degree of motion of the body part, and determine the blood pressure value of the user according to the processed pulse wave pressure signal.

2. The apparatus of claim 1,

the determination module is specifically configured to determine that the body part of the user moves when a difference between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval is greater than a predetermined pressure threshold value and a slope of a pressure signal line of the adjacent time interval obtained by prediction is outside the predetermined range; wherein the real pressure value of the adjacent time period is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time period.

3. The apparatus of claim 1,

the obtaining module is specifically configured to determine the degree of motion of the body part according to a difference between the predicted pressure value in the adjacent time interval and the actual pressure value in the adjacent time interval, and a slope of a pressure signal line in the adjacent time interval obtained through prediction; wherein the real pressure value of the adjacent time period is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time period.

4. A blood pressure measuring device, comprising:

a pressurizing module; a data acquisition module; one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the blood pressure measurement device, cause the blood pressure measurement device to perform the steps of:

acquiring a pulse wave pressure signal of a user, wherein the pulse wave pressure signal is measured by blood pressure measuring equipment at a body part of the user wearing the blood pressure measuring equipment;

predicting a pressure signal line of an adjacent time period of the continuous pressure signal section according to the continuous pressure signal section, and obtaining a predicted pressure value of the adjacent time period according to the pressure signal line obtained by prediction;

determining whether the body part of the user moves according to the predicted pressure signal line of the adjacent time period and the predicted pressure value of the adjacent time period;

5. A blood pressure measuring device according to claim 4, wherein the instructions, when executed by the blood pressure measuring device, cause the blood pressure measuring device to perform the step of determining whether the body part of the user is moving according to the predicted pressure signal line of the adjacent time period and the predicted pressure value of the adjacent time period obtained from the prediction, comprise:

determining that the body part of the user is in motion if the difference between the predicted pressure value of the proximate time period and the true pressure value of the proximate time period is greater than a predetermined pressure threshold and the slope of the pressure signal line of the proximate time period obtained by the prediction is outside the predetermined range; wherein the real pressure value of the adjacent time period is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time period.

6. A blood pressure measurement device as recited in claim 4, wherein the instructions, when executed by the blood pressure measurement device, cause the blood pressure measurement device to perform the step of obtaining the degree of motion of the body part comprises:

determining the motion degree of the body part according to the difference value between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval and the slope of the pressure signal line of the adjacent time interval obtained through prediction; wherein the real pressure value of the adjacent time interval is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time interval.

7. A blood pressure measurement device according to any one of claims 4-6, wherein the instructions, when executed by the blood pressure measurement device, cause the blood pressure measurement device to perform the step of predicting the pressure signal line of the adjacent period of the continuous pressure signal segment from the continuous pressure signal segment comprises:

and performing linear fitting on the pressure signal of the adjacent time period before the continuous pressure signal section according to the continuous pressure signal section with the time length reaching the preset time length to obtain the pressure signal line of the adjacent time period before the continuous pressure signal section.

8. A blood pressure measuring device according to any one of claims 4-6, wherein the instructions, when executed by the blood pressure measuring device, cause the blood pressure measuring device to perform the step of predicting pressure signal lines of adjacent time periods of the continuous pressure signal segment from the continuous pressure signal segment comprise:

if the duration of the continuous pressure signal segment is greater than or equal to the preset duration, extracting the continuous pressure signal segment with the duration of the preset duration from the continuous pressure signal segment;

and according to the extracted continuous pressure signal segment, performing linear fitting on the pressure signal of the adjacent time period after the extracted continuous pressure signal segment to obtain a pressure signal line of the adjacent time period after the extracted continuous pressure signal segment.

9. A blood pressure measuring device according to any one of claims 4-6, wherein the instructions, when executed by the blood pressure measuring device, cause the blood pressure measuring device to perform the step of processing the pulse wave pressure signal according to the degree of movement of the body part comprises:

discarding the pulse wave pressure signal measured by the blood pressure measurement device during the period when the body part is moving when the degree of movement of the body part is less than or equal to a first degree of movement threshold, reducing the pressure value applied to the body part by the blood pressure measurement device to a pressure value before the discarding operation is performed, and starting repressurization measurement from the pressure value before the discarding operation is performed; alternatively, the first and second electrodes may be,

when the movement degree of the body part is smaller than or equal to a first movement degree threshold value, discarding the pulse wave pressure signals measured by the blood pressure measuring equipment in the movement period of the body part, and filling the pulse wave pressure signals in the movement period of the body part in a signal processing mode.

10. A blood pressure measuring device according to any one of claims 4-6, wherein the instructions, when executed by the blood pressure measuring device, cause the blood pressure measuring device to perform the step of processing the pulse wave pressure signal according to the degree of movement of the body part comprises:

when the movement degree of the body part is larger than or equal to a second movement degree threshold value, reminding the user to keep still, reducing the pressure value applied to the body part by the blood pressure measuring equipment to a preset pressure value, and starting pressurization measurement from the preset pressure value again after the user keeps still.

11. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to perform the steps of:

12. The computer-readable storage medium according to claim 11, wherein the computer program, when executed on a computer, causes the computer to execute the step of determining whether the body part of the user is in motion according to the predicted pressure signal line of the adjacent period and the predicted pressure value of the adjacent period obtained from prediction, comprises:

13. The computer-readable storage medium of claim 11, wherein the computer program, when executed on a computer, causes the computer to perform the step of obtaining the degree of motion of the body part comprises:

determining the motion degree of the body part according to the difference value between the predicted pressure value of the adjacent time interval and the real pressure value of the adjacent time interval and the slope of the pressure signal line of the adjacent time interval obtained through prediction; wherein the real pressure value of the adjacent time period is obtained according to the pulse wave pressure signal detection measured by the blood pressure measuring equipment in the adjacent time period.

14. The computer readable storage medium according to any one of claims 11-13, wherein the computer program, when executed on a computer, causes the computer to perform the step of predicting pressure signal lines of adjacent periods of the continuous pressure signal segment from the continuous pressure signal segment comprises:

15. The computer-readable storage medium according to any one of claims 11-13, wherein the computer program, when executed on a computer, causes the computer to perform the step of predicting pressure signal lines of adjacent time periods of the continuous pressure signal segment from the continuous pressure signal segment comprises:

16. The computer-readable storage medium according to any one of claims 11-13, wherein the computer program, when executed on a computer, causes the computer to perform the step of processing the pulse wave pressure signal according to the degree of motion of the body part, including:

17. The computer-readable storage medium according to any one of claims 11 to 13, wherein the computer program, when executed on a computer, causes the computer to perform the step of processing the pulse wave pressure signal according to the degree of motion of the body part, includes: