CN109893111B - Dynamic blood pressure measurement mode selection method and device - Google Patents
Dynamic blood pressure measurement mode selection method and device Download PDFInfo
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- CN109893111B CN109893111B CN201910168891.4A CN201910168891A CN109893111B CN 109893111 B CN109893111 B CN 109893111B CN 201910168891 A CN201910168891 A CN 201910168891A CN 109893111 B CN109893111 B CN 109893111B
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Abstract
The invention is suitable for the technical field of medical equipment, and provides a dynamic blood pressure measurement mode selection method and a device, which are applied to a dynamic blood pressure measuring instrument, and the method comprises the following steps: the method comprises the steps of determining the current posture of a user, obtaining the current moment when the current posture is a lying posture, selecting a pulse wave measurement mode to measure the blood pressure of the user if the current moment is at night, selecting an ascending measurement mode to measure the blood pressure of the user if the current moment is at daytime, selecting an ascending measurement mode to measure the blood pressure of the user if the current posture is a sitting posture, selecting a descending measurement mode to measure the blood pressure of the user if the current posture is a moving posture, and realizing no noise and no compression during night measurement and strong anti-interference during daytime measurement according to the posture and time during measurement of the user, thereby ensuring the accuracy of measured dynamic blood pressure, improving the use experience of the user and solving the problem that the measured dynamic blood pressure is not accurate enough due to the adoption of a single measurement mode in the prior art.
Description
Technical Field
The invention belongs to the field of medical equipment, and particularly relates to a dynamic blood pressure measurement mode selection method and device.
Background
Ambulatory blood pressure measurement is a technique for continuously measuring the blood pressure of a user (measurer) for 24 hours without influencing the daily activities of the user, and can obtain blood pressure values for a plurality of times within 24 hours. Generally, the blood pressure is measured 1 time in 15-30 minutes, and the average value of the blood pressure values measured in 24 hours is taken, wherein the average value comprises 24-hour average systolic pressure, average diastolic pressure, average pulse pressure and basic blood pressure. The method has the advantages that the accidental measurement of the blood pressure by the occasional measurement can be eliminated, the influence of factors such as emotion, exercise, eating, smoking, drinking and the like of a user on the measurement can be avoided, the blood pressure condition can be objectively and truly reflected, more blood pressure data can be obtained, the change rule of the blood pressure in the whole day can be actually reflected, the detection rate can be improved particularly for early asymptomatic mild hypertension or critical hypertension users, and the user can be treated in time.
The existing dynamic blood pressure measuring instruments are mainly divided into three types: the first method is to measure the dynamic blood pressure of a user in a descending measurement mode, and has the advantages of strong anti-interference performance, strong oppression feeling and high noise to the user during measurement, and influence on the sleep of the user during measurement at night, so that the measured blood pressure value is not the real blood pressure of the user, and the method is not suitable for measuring the dynamic blood pressure of the user in a static state. The second is to use the ascending measurement mode to measure the dynamic blood pressure of the user, which has the advantages of small oppression feeling, but has the defects of poor anti-interference performance and large noise, and the blood pressure value at night of the user can not be objectively measured. The third is to use the pulse wave measuring mode to measure the dynamic blood pressure of the user, which has the advantages of low noise and no sense of compression, but the anti-interference performance is poor, so the measured blood pressure value is inaccurate when the interference is strong, and the user is required to keep a static state during measurement, which is not suitable for measuring the dynamic blood pressure of the user in an active state.
Therefore, the blood pressure of the user in 24 hours cannot be accurately measured by adopting any conventional measurement mode.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for selecting a dynamic blood pressure measurement mode, so as to solve the problem in the prior art that a single measurement mode is adopted, which results in inaccurate measured dynamic blood pressure.
The first aspect of the embodiments of the present invention provides a dynamic blood pressure measurement mode selection method, which is applied to a dynamic blood pressure measurement apparatus, and the method includes:
determining the current posture of a user, wherein the current posture comprises a lying posture, a sitting posture and a moving posture;
when the current posture is a lying posture, acquiring the current moment, selecting a pulse wave measurement mode to measure the blood pressure of the user if the current moment is at night, and selecting an ascending measurement mode to measure the blood pressure of the user if the current moment is at daytime;
when the current posture is a sitting posture, selecting an ascending measurement mode to measure the blood pressure of the user;
and when the current posture is the motion posture, selecting a descending measurement mode to measure the blood pressure of the user.
In one possible implementation, the determining the current posture of the user includes:
acquiring an attitude parameter at the current moment;
calibrating the attitude parameters;
acquiring user attitude data according to the calibrated attitude parameters;
determining a current pose of the user from the pose data.
In one possible implementation, the determining the current posture of the user includes:
acquiring the acceleration of the dynamic blood pressure measuring instrument at the current moment;
and when the acceleration at the current moment is larger than or equal to a first preset threshold value, determining that the current posture of the user is a motion posture.
In a possible implementation manner, the determining a current posture of the user further includes:
when the acceleration at the current moment is smaller than the first preset threshold, acquiring the acceleration of the dynamic blood pressure measuring instrument at the historical moment, wherein the historical moment is the moment which is closest to the current moment and the acceleration is larger than the first preset threshold;
judging whether the direction of the acceleration at the historical moment meets a preset condition or not;
if the direction of the acceleration at the historical moment meets a preset condition, determining that the current posture of the user is a lying posture;
and if the direction of the acceleration at the historical moment does not meet the preset condition, determining that the current posture of the user is a sitting posture.
In one possible implementation, when the current posture is a motion posture, selecting a descending measurement mode to measure the blood pressure of the user includes:
when the current posture is a motion posture, judging whether the motion posture is a violent motion posture;
if the motion posture is a violent motion posture, selecting a descending measurement mode to measure the blood pressure of the user, and marking the measurement result as a violent motion posture;
and if the motion posture is not a violent motion posture, selecting a descending measurement mode to measure the blood pressure of the user.
In a possible implementation manner, the determining whether the motion gesture is a strenuous motion gesture includes:
acquiring the heart rate of the user;
when the heart rate is larger than a second preset threshold value, determining that the motion gesture is a violent motion gesture;
and when the heart rate is less than or equal to a second preset threshold value, determining that the motion gesture is a non-violent motion gesture.
In a possible implementation manner, the method further includes:
and sending the measurement result to a preset terminal.
A second aspect of the embodiments of the present invention provides a device for selecting a dynamic blood pressure measurement mode, which is applied to a dynamic blood pressure measuring apparatus, and the device includes:
the determining module is used for determining the current postures of the user, wherein the current postures comprise lying postures, sitting postures and motion postures;
the selection module is used for acquiring the current moment when the current posture is the lying posture, selecting a pulse wave measurement mode to measure the blood pressure if the current moment is at night, and selecting an ascending measurement mode to measure the blood pressure if the current moment is at the daytime;
the selection module is further used for selecting an ascending measurement mode to measure the blood pressure when the current posture is a sitting posture;
the selection module is further used for selecting a descending measurement mode to measure the blood pressure when the current posture is the motion posture.
A third aspect of an embodiment of the present invention provides a terminal device, including:
a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method as described above when executing the computer program.
A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium, including:
the computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the method as described above.
The invention provides a dynamic blood pressure measurement mode selection method and a device, which are applied to a dynamic blood pressure measuring instrument, and the method comprises the following steps: determining the current posture of a user, wherein the current posture comprises a lying posture, a sitting posture and a moving posture, acquiring the current time when the current posture is the lying posture, selecting a pulse wave measurement mode to measure the blood pressure of the user when the current time is at night, selecting an ascending measurement mode to measure the blood pressure of the user when the current time is at the daytime, selecting an ascending measurement mode to measure the blood pressure of the user when the current posture is the sitting posture, selecting a descending measurement mode to measure the blood pressure of the user when the current posture is the moving posture, realizing no noise and no pressure feeling when the user lies at night, low noise and small pressure feeling when the user sits or lies at day, and strong anti-interference performance when the user moves at day, and ensuring the accuracy of the measured dynamic blood pressure, the use experience of a user is improved, and the problem that the dynamic blood pressure measured by adopting a single measurement mode in the prior art is not accurate enough is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart illustrating an implementation of a dynamic blood pressure measurement mode selection method according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a detailed step of step 11 in the embodiment shown in FIG. 1;
FIG. 3 is a schematic flow chart of another refinement of step 11 in the embodiment shown in FIG. 1;
FIG. 4 is a schematic flow chart of a refinement of step 14 in the embodiment shown in FIG. 1;
fig. 5 is a schematic diagram of a device for selecting a dynamic blood pressure measurement mode according to a fifth embodiment of the present invention;
fig. 6 is a schematic diagram of a terminal device according to a sixth embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from 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 invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a schematic flow chart illustrating an implementation of a method for selecting a dynamic blood pressure measurement mode according to an embodiment of the present invention, where the method is applied to a dynamic blood pressure measuring apparatus. When a user needs to measure the dynamic blood pressure of the user in one day, the user wears the dynamic blood pressure measuring instrument for 24 hours continuously, and the dynamic blood pressure measuring instrument measures the current blood pressure of the user once in each measuring period according to the preset measuring period of the user. Alternatively, the measurement period may be 15 minutes, or 30 minutes, or may be other values, specifically set by the user. As shown in fig. 1, the method of the present embodiment includes the following steps:
and step 11, determining the current posture of the user.
Wherein the current posture comprises a lying posture, a sitting posture and a moving posture.
And determining the current posture of the user when the dynamic blood pressure measuring instrument measures in each period. Optionally, the current posture of the user may be determined according to data measured by a sensor in the ambulatory blood pressure measurement instrument, or the data of the user may be measured by an external device, and the ambulatory blood pressure measurement instrument acquires the measured data of the user from the external device to determine the current posture of the user.
When the detected user is in a lying state, the current posture of the user is determined to be a lying posture state, when the detected user is in a sitting posture or a standing posture, the current posture of the user is determined to be a sitting posture, and when the detected user is moving, the current posture of the user is determined to be a moving posture.
And step 12, when the current posture is the lying posture, acquiring the current moment, selecting a pulse wave measurement mode to measure the blood pressure of the user when the current moment is at night, and selecting an ascending measurement mode to measure the blood pressure of the user when the current moment is at the day.
When the dynamic blood pressure measuring instrument determines that the current posture of the user is the lying posture, the current measuring time is obtained, and whether the current measuring time is in the daytime or at night is judged, in other words, whether the blood pressure of the user is measured in the daytime or at night is judged.
When the current moment when the user measures the blood pressure is at night, the pulse wave measurement mode is selected to measure the night blood pressure of the user. The pulse wave is formed by the propagation of the pulsation (vibration) of the heart to the periphery along the arterial blood vessel and the blood flow, the pulse wave measurement mode is to replace single-point measurement with multi-point measurement, and the blood pressure of the user is measured by utilizing the internal connection and the change rule between points near the systolic pressure point and the diastolic pressure point. Because the pulse wave measurement mode does not have errors caused by insufficient hearing and eyesight of doctors when measuring the blood pressure, the errors caused by manual operation are avoided. Meanwhile, when the blood pressure is measured in the pulse wave measuring mode, the blood pressure measurement without noise can be realized, and the problem of noise in the blood pressure measurement at night is solved. Moreover, the user is in a lying posture at night, mostly in a sleeping state, the static state does not need to be kept carelessly, the dynamic blood pressure measuring instrument is less interfered by the outside, the defect that the dynamic blood pressure measuring instrument adopting the pulse wave measuring mode is poor in anti-interference performance is overcome, further, the user is not stressed when the pulse wave measuring mode is selected at night for measurement, the sleeping of the user is not influenced, and the accuracy of the night blood pressure measurement is greatly improved while the use experience of the user is improved.
And when the current moment of measuring the blood pressure of the user is in the daytime, selecting the ascending measurement mode to measure the blood pressure of the user in the daytime lying posture state. And in the ascending measurement mode, the air pump is used for slowly inflating and pressurizing the cuff, and in the pressurizing process, the sphygmomanometer acquires the pressure amplitude curve of the artery and calculates the systolic pressure and the diastolic pressure according to the characteristic points so as to obtain the measurement result. During days with large interference, the rising type measurement mode is selected to measure the blood pressure, the accuracy of the measurement result is ensured, meanwhile, the inflation noise is reduced, the air is quickly released after the collection is completed, the oppression on the arms of the user is relieved, and the use experience of the user is improved.
Alternatively, the time period from 22 pm to 6 am and the time period from 6 am to 22 am is indicated by night.
And step 13, when the current posture is a sitting posture, selecting an ascending measurement mode to measure the blood pressure of the user.
When the dynamic blood pressure measuring instrument determines that the current posture of the user is a sitting posture, the blood pressure of the user is measured in an ascending measuring mode as if the current posture of the user is a lying posture during the daytime.
And 14, when the current posture is a motion posture, selecting a descending measurement mode to measure the blood pressure of the user.
And when the dynamic blood pressure measuring instrument determines that the current posture of the user is the motion posture, selecting a descending type measuring mode to measure the blood pressure of the user. And in the descending measurement mode, the air pump is used for rapidly inflating and pressurizing the cuff, the inflatable cuff is used for compressing the arterial blood vessel to enable the arterial blood vessel to be in a completely closed state, then the blood vessel is slowly deflated, and in the process of cuff pressure descending, the pressure amplitude curve of the artery is collected and the systolic pressure and the diastolic pressure are calculated according to the characteristic points, so that the measurement result is obtained. When the user is moving, the descending measurement mode is selected for measurement, so that the influence of external interference on the measurement result is avoided, and the accuracy of the measurement result is ensured to the greatest extent.
Optionally, before selecting the pulse wave measurement mode to measure the blood pressure of the user, the method further includes: judging whether the current measurement mode is a pulse wave measurement mode, and switching the current measurement mode to be the pulse wave measurement mode when the current measurement mode is not the pulse wave measurement mode.
Optionally, before selecting the ascending measurement mode to measure the blood pressure of the user, the method further includes: judging whether the current measurement mode is an ascending measurement mode, and switching the current measurement mode to be the ascending measurement mode when the current measurement mode is not the ascending measurement mode.
Optionally, before selecting the descending measurement mode to measure the blood pressure of the user, the method further includes: judging whether the current measurement mode is a descending measurement mode, and switching the current measurement mode to the descending measurement mode when the current measurement mode is not the descending measurement mode.
Before measuring the blood pressure, judging whether the current measurement mode of the dynamic blood pressure measuring instrument is matched with the measurement mode determined according to the current posture and the moment of the user, and when the current measurement mode is not matched with the measurement mode determined according to the current posture and the moment of the user, switching the current measurement mode into the measurement mode determined according to the current posture and the moment of the user. For example, the current posture of the user is a lying posture, the measurement mode determined according to the current posture and the current time of the user is an ascending measurement mode within a time period of the day, but the current measurement mode of the dynamic blood pressure measuring instrument is a descending measurement mode or a pulse wave measurement mode, at this time, the current measurement mode is not matched with the measurement mode determined according to the current posture and the current time of the user, the dynamic blood pressure measuring instrument switches the descending measurement mode or the pulse wave measurement mode to the ascending measurement mode, and then the ascending measurement mode is adopted to measure the blood pressure of the user.
Optionally, the method of this embodiment further includes: and sending the measurement result to a preset terminal.
And the dynamic blood pressure measuring instrument sends the measuring result to a terminal preset by a user. The user of the preset terminal can be a doctor, so that the doctor can conveniently obtain the dynamic blood pressure of the user carrying the dynamic blood pressure measuring instrument in real time, and the user can be diagnosed more reasonably. The user of the preset terminal can also be the relative of the user, so that the relative of the user can be found in time when the blood pressure of the user is abnormal, and the delay of treatment is avoided.
The embodiment provides a dynamic blood pressure measurement mode selection method, which is applied to a dynamic blood pressure measuring instrument, and the method comprises the following steps: determining the current posture of a user, wherein the current posture comprises a lying posture, a sitting posture and a moving posture, acquiring the current time when the current posture is the lying posture, selecting a pulse wave measurement mode to measure the blood pressure of the user when the current time is at night, selecting an ascending measurement mode to measure the blood pressure of the user when the current time is at the daytime, selecting an ascending measurement mode to measure the blood pressure of the user when the current posture is the sitting posture, selecting a descending measurement mode to measure the blood pressure of the user when the current posture is the moving posture, realizing no noise and no pressure feeling when the user lies at night, low noise and small pressure feeling when the user sits or lies at day, and strong anti-interference performance when the user moves at day, and ensuring the accuracy of the measured dynamic blood pressure, the use experience of a user is improved, and the problem that the dynamic blood pressure measured by adopting a single measurement mode in the prior art is not accurate enough is solved.
Fig. 2 is a schematic flowchart of a detailed step of step 11 in the embodiment shown in fig. 1, and as shown in fig. 2, in this embodiment, determining the current posture of the user specifically includes the following steps:
Wherein the attitude parameters include angular velocity, acceleration, and magnetic data. The dynamic blood pressure measuring instrument can acquire angular velocity, acceleration and magnetic data of a user at the current moment through a sensor arranged in the dynamic blood pressure measuring instrument, and can also acquire the data through external equipment. When acquired by a sensor disposed inside thereof, the sensor may be an attitude sensor. The attitude sensor is a high-performance motion attitude measurement system based on a micro-electro-mechanical system technology, and comprises auxiliary motion sensors such as a gyroscope, an accelerometer, an electronic compass and the like. Preferably, the gyroscope is a three-axis gyroscope, the accelerometer is a three-axis accelerometer, the electronic compass sensor is a three-axis electronic compass sensor, and the three-axis gyroscope, the three-axis accelerometer and the three-axis electronic compass sensor can improve the accuracy of the attitude parameters relative to a two-axis gyroscope, a two-axis accelerometer and a two-axis electronic compass sensor, so that the dynamic blood pressure measuring instrument can judge the current attitude of the user more accurately.
After the dynamic blood pressure measuring instrument obtains the posture parameters of the current moment, the angular velocity, the acceleration and the magnetic data are respectively calibrated through the embedded low-power ARM processor, the parameter values with deviation are corrected, and the error of the user posture data obtained according to inaccurate posture parameters is avoided, so that the error of the determined current posture of the user is avoided.
And 203, acquiring user posture data according to the calibrated posture parameters.
And measuring the motion attitude of the calibrated attitude parameters through a sensor data algorithm based on quaternion, and outputting zero-drift three-dimensional attitude data expressed by quaternion, Euler angle and the like in real time, wherein the zero-drift three-dimensional attitude data is the user attitude data.
And 204, determining the current posture of the user according to the posture data.
And comparing the posture data of the user obtained in the previous step with the posture data of the lying posture, the sitting posture and the motion posture respectively, and determining the posture which is most matched with the posture data in the lying posture, the sitting posture and the motion posture as the current posture of the user.
The embodiment provides a method for determining the current posture of a user, which includes the steps of obtaining a posture parameter at the current moment, calibrating the posture parameter, obtaining user posture data according to the calibrated posture parameter, determining the current posture of the user according to the posture data, and selecting a measurement mode matched with the current posture for measuring the blood pressure of the user, so that the accuracy of the measured dynamic blood pressure is guaranteed, the use experience of the user is improved, and the problem that the measured dynamic blood pressure is not accurate enough due to the fact that a single measurement mode is adopted in the prior art is solved.
Fig. 3 is a schematic flowchart of another detailed step of step 11 in the embodiment shown in fig. 1, and as shown in fig. 3, in this embodiment, determining the current posture of the user specifically includes the following steps:
When the dynamic blood pressure measuring instrument determines the current posture of the user, firstly, the acceleration of the dynamic blood pressure measuring instrument at the current moment is obtained, and the dynamic blood pressure measuring instrument is carried by the user, so that the obtained acceleration of the dynamic blood pressure measuring instrument is the acceleration of the specific part of the user carrying the dynamic blood pressure measuring instrument, for example, when the user wears the dynamic blood pressure measuring instrument on the upper side of the elbow joint by 1-2cm (centimeter), the acceleration is the acceleration of the upper side of the elbow joint by 1-2 cm; when the user wears the ambulatory blood pressure measurement device on the wrist, the acceleration is the acceleration of the wrist. The acceleration of the ambulatory blood pressure measurement instrument at the current moment can be specifically obtained by a sensor arranged in the ambulatory blood pressure measurement instrument or can be obtained by external equipment. When the dynamic blood pressure measuring instrument is obtained through the sensor arranged in the dynamic blood pressure measuring instrument, optionally, the sensor is an acceleration sensor, the acceleration obtained by the acceleration sensor is a vector, the vector comprises a magnitude and a direction, the magnitude represents a physical quantity of the speed change of the dynamic blood pressure measuring instrument at the current moment, and the direction represents the moving direction of the dynamic blood pressure measuring instrument at the current moment. Preferably, the acceleration sensor is a three-axis acceleration sensor, and the acceleration of the user at the current moment is obtained by measuring X, Y, Z the accelerations on three coordinate axes, so that the current posture of the user is determined according to the acceleration at the current moment.
When the acquired acceleration at the current moment is larger than or equal to a first preset threshold value, the fact that the user is moving currently is indicated, and at the moment, the current posture of the user is determined to be a moving posture. The first preset threshold is preset by a user. Optionally, the set first preset threshold is a value slightly larger than zero, that is, the magnitude of the acceleration is not zero, and when the magnitude of the acceleration at the current time is smaller than the first preset threshold and larger than zero, although the current time of the user is not in a static posture, the current time of the user is similar to the static posture, and the motion of the user is not enough to affect the measurement result.
Optionally, on the basis of steps 301 and 302, the determining the current posture of the user may further include the following steps:
and 303, when the acceleration at the current moment is smaller than the first preset threshold, acquiring the acceleration of the dynamic blood pressure measuring instrument at a historical moment, wherein the historical moment is the moment which is closest to the current moment and the acceleration is larger than the first preset threshold.
When the acquired acceleration at the current moment is smaller than a first preset threshold value, the user is indicated to be in a non-motion posture at present, namely, the lying posture or the sitting posture. In order to further determine whether the user is in a lying posture or a sitting posture currently, the dynamic blood pressure measuring instrument obtains the acceleration of the user at the historical moment by searching the acceleration stored at the previous moment, wherein the historical moment is the moment which is closest to the current moment and the acceleration of the historical moment is larger than a first preset threshold value. For example, the current time is 23 points, the acceleration at this time is 0, which is smaller than a first preset threshold, the time before 23 points is acquired, the time is shortest from 23 points and the acceleration is greater than the first preset threshold, if the acquired time is 21:30, the acceleration of the user is always smaller than the first preset threshold between 21:30 and 23 points, the acceleration of the historical time is 21:30, and whether the user changes from another posture to a sitting posture or a lying posture at 21:30 is analyzed according to the instantaneous change of the acceleration, specifically, as described in the following steps 304 to 306.
And step 304, judging whether the direction of the acceleration at the historical moment meets a preset condition.
After the dynamic blood pressure measuring instrument obtains the acceleration at the historical moment which is closest to the current moment and the acceleration is larger than the first preset threshold value, whether the direction of the acceleration at the historical moment meets a preset condition or not is judged, and the preset condition is preset by a user. Optionally, the preset condition is that an included angle between a projection of the direction of the acceleration on an XOZ plane of the spatial coordinate system XYZ and the positive direction of the X axis is greater than a third preset threshold. The specific judgment process is as follows: judging whether the angle of an acceleration Z axis deviated to the X axis positive direction in a space coordinate system XYZ is larger than a third preset threshold value or not, projecting the acceleration onto an XOZ plane of the space coordinate system XYZ, judging whether the included angle between the projection and the X axis positive direction is larger than the third preset threshold value or not, when the included angle is larger than the third preset threshold value, indicating that the user is changing from other postures to lying postures at the historical moment, and otherwise, indicating that the user is changing from other postures to sitting postures at the historical moment.
Optionally, the value of the third preset threshold is a value greater than 45 °. Preferably, in this embodiment, the third preset threshold is 60 °.
And 305, if the direction of the acceleration at the historical moment meets a preset condition, determining that the current posture of the user is a lying posture.
Still by way of example, when the angle between the projection of the direction of the acceleration of the user at 21:30 on the XOZ plane of the spatial coordinate system XYZ and the positive direction of the X axis is 70 °, which is greater than the third preset threshold value 60 °, the preset condition is satisfied, and it is determined that the user changes from the other posture to the lying posture state at 21:30, and since the magnitude of the acceleration of the user between 21:30 and 23 points is always smaller than the first preset threshold value, that is, the posture of the user does not change between 21:30 and 23 points, it is determined that the posture of the user is the lying posture at 23 points.
And step 306, if the direction of the acceleration at the historical moment does not meet a preset condition, determining that the current posture of the user is a sitting posture.
Still by way of example, when the angle between the projection of the direction of the acceleration of the user at 21:30 on the XOZ plane of the spatial coordinate system XYZ and the positive direction of the X axis is 30 ° and is smaller than the second preset threshold value of 60 ° and does not satisfy the preset condition, it is determined that the user changes from the other posture to the sitting posture at 21:30, and since the magnitude of the acceleration of the user between 21:30 and 23 points is always smaller than the first preset threshold value, that is, the posture of the user does not change between 21:30 and 23 points, it is determined that the posture of the user is the sitting posture at 23 points.
The embodiment provides a method for determining a current posture of a user, which includes obtaining an acceleration of a dynamic blood pressure measuring instrument at a current moment, determining that the current posture of the user is a motion posture when the magnitude of the acceleration of the dynamic blood pressure measuring instrument at the current moment is greater than or equal to a first preset threshold, obtaining an acceleration of a dynamic blood pressure measuring instrument at a historical moment when the magnitude of the acceleration of the current moment is less than the first preset threshold, determining whether the direction of the acceleration of the historical moment meets a preset condition or not when the historical moment is the moment which is closest to the current moment and the magnitude of the acceleration is greater than the first preset threshold, determining that the current posture of the user is a lying posture if the direction of the acceleration of the historical moment meets the preset condition, otherwise, determining that the current posture of the user is a sitting posture, thereby determining the current posture of the user, and then the measurement mode matched with the current posture for measuring the blood pressure of the user is selected, so that the accuracy of the measured dynamic blood pressure is ensured, the use experience of the user is improved, and the problem that the measured dynamic blood pressure is not accurate enough due to the adoption of a single measurement mode in the prior art is solved.
Fig. 4 is a schematic flowchart of a detailed step of step 14 in the embodiment shown in fig. 1, and as shown in fig. 4, in this embodiment, when the current posture is a motion posture, the step of measuring the blood pressure of the user in the descent measurement mode is selected, which specifically includes the following steps:
Since exercise affects the blood pressure measured by the user, especially when the user is exercising vigorously, the measured blood pressure can reach 160-. These measurements need to be marked for further correction. Firstly, when the current posture is a motion posture, the dynamic blood pressure measuring instrument judges whether the motion posture is a violent motion posture, namely whether the current motion of the user is violent motion. The step of judging whether the motion posture is strenuous motion specifically comprises the following steps S4011 to S4013:
s4011, obtaining the heart rate of the user.
S4012, when the heart rate is greater than a second preset threshold value, determining that the motion posture is a violent motion posture.
S4013, when the heart rate is less than or equal to a second preset threshold value, determining that the motion posture is a non-violent motion posture.
As described above, the judgment of the strenuous exercise posture is performed according to the feature that the heart rate is larger than the normal value when the user is strenuous exercise. The dynamic blood pressure measuring instrument acquires the current heart rate of the user through a sensor on the dynamic blood pressure measuring instrument, when the heart rate is larger than a second preset threshold value preset by the user, the current heart rate of the user is larger than the heart rate of the user in normal exercise, and at the moment, the current exercise posture of the user is determined to be a violent exercise posture. When the heart rate is smaller than or equal to a second preset threshold value preset by the user, the current heart rate of the user is not larger than the heart rate of the user in normal exercise, and at the moment, the current exercise posture of the user is determined to be a non-strenuous exercise posture.
And 402, if the motion posture is a violent motion posture, selecting a descending measurement mode to measure the blood pressure of the user, and marking the measurement result as the violent motion posture.
When the dynamic blood pressure measuring instrument determines that the movement posture is the strenuous movement posture, the descending type measuring mode is selected to measure the blood pressure of the user, the measuring result is marked as the strenuous movement posture, so that when the average blood pressure of the user in one day is calculated according to the measured 24-hour blood pressure value, the blood pressure value measured under the strenuous movement is filtered and removed, or the blood pressure value measured under the strenuous movement is corrected and then calculated.
And 403, if the motion posture is not a violent motion posture, selecting a descending measurement mode to measure the blood pressure of the user.
When the ambulatory blood pressure measurement device determines that the exercise posture is a non-strenuous exercise posture, that is, exercise under general conditions, such as walking, housework, and the like. At the moment, the blood pressure of the user is measured by selecting the descending measurement mode, so that the influence of external interference on the measurement result is avoided, and the accuracy of the measurement result is ensured to the greatest extent.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Fig. 5 is a schematic view of a dynamic blood pressure measurement mode selection device according to a fifth embodiment of the present invention, which is applied to a dynamic blood pressure measurement device, as shown in fig. 5, the dynamic blood pressure measurement mode selection device according to the present embodiment includes:
a determining module 51, configured to determine a current posture of the user, where the current posture includes a lying posture, a sitting posture and a moving posture;
a selecting module 52, configured to obtain a current time when the current posture is a lying posture, select a pulse wave measurement mode to measure blood pressure if the current time is at night, and select an ascending measurement mode to measure blood pressure if the current time is at day time;
the selecting module 52 is further configured to select an ascending measurement mode to measure the blood pressure when the current posture is the sitting posture;
the selecting module 52 is further configured to select a descending measurement mode to measure the blood pressure when the current posture is a motion posture.
The device for selecting a dynamic blood pressure measurement mode provided in this embodiment is used to implement the method for selecting a dynamic blood pressure measurement mode described in the first embodiment, where the functions of each module may refer to the corresponding descriptions in the method embodiments, and the implementation principle and technical effect are similar, and are not described here again.
Fig. 6 is a schematic diagram of a terminal device according to a sixth embodiment of the present invention. As shown in fig. 6, the terminal device 6 of this embodiment includes: a processor 60, a memory 61 and a computer program 62, such as a dynamic blood pressure measurement mode selection program, stored in said memory 61 and executable on said processor 60. The processor 60, when executing the computer program 62, implements the steps in the various embodiments of the ambulatory blood pressure measurement mode selection method described above, such as the steps 11 to 14 shown in fig. 1. Alternatively, the processor 60, when executing the computer program 62, implements the functions of the modules in the above device embodiments, such as the functions of the modules 51 to 52 shown in fig. 5.
Illustratively, the computer program 62 may be partitioned into one or more modules/units that are stored in the memory 61 and executed by the processor 60 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 62 in the terminal device 6. For example, the computer program 62 may be divided into a determination module and a selection module (unit module in the virtual device), and the specific functions of each module are as follows:
the determining module is used for determining the current postures of the user, wherein the current postures comprise lying postures, sitting postures and motion postures;
the selection module is used for acquiring the current moment when the current posture is the lying posture, selecting a pulse wave measurement mode to measure the blood pressure if the current moment is at night, and selecting an ascending measurement mode to measure the blood pressure if the current moment is at the daytime;
the selection module is further used for selecting an ascending measurement mode to measure the blood pressure when the current posture is a sitting posture;
the selection module is further used for selecting a descending measurement mode to measure the blood pressure when the current posture is the motion posture.
The terminal device 6 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device 6 may include, but is not limited to, a processor 60, a memory 61. It will be understood by those skilled in the art that fig. 6 is only an example of the terminal device 6, and does not constitute a limitation to the terminal device 6, and may include more or less components than those shown, or combine some components, or different components, for example, the terminal device 6 may further include an input-output device, a network access device, a bus, etc.
The Processor 60 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 61 may be an internal storage unit of the terminal device 6, such as a hard disk or a memory of the terminal device 6. The memory 61 may also be an external storage device of the terminal device 6, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 6. Further, the memory 61 may also include both an internal storage unit and an external storage device of the terminal device 6. The memory 61 is used for storing the computer programs and other programs and data required by the terminal device 6. The memory 61 may also be used to temporarily store data that has been output or is to be output.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is merely used as an example, and in practical applications, the foregoing function distribution may be performed by different functional units and modules as needed, that is, the internal structure of the terminal device is divided into different functional units or modules to perform all or part of the above-described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. 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 invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A dynamic blood pressure measurement mode selection method is applied to a dynamic blood pressure measuring instrument and is characterized by comprising the following steps:
determining the current posture of a user, wherein the current posture comprises a lying posture, a sitting posture and a moving posture;
when the current posture is a lying posture, acquiring the current moment, selecting a pulse wave measurement mode to measure the blood pressure of the user if the current moment is at night, and selecting an ascending measurement mode to measure the blood pressure of the user if the current moment is at daytime;
when the current posture is a sitting posture, selecting an ascending measurement mode to measure the blood pressure of the user;
and when the current posture is the motion posture, selecting a descending measurement mode to measure the blood pressure of the user.
2. The method of claim 1, wherein the determining the current pose of the user comprises:
acquiring an attitude parameter at the current moment;
calibrating the attitude parameters;
acquiring user attitude data according to the calibrated attitude parameters;
determining a current pose of the user from the pose data.
3. The method of claim 1, wherein the determining the current pose of the user comprises:
acquiring the acceleration of the dynamic blood pressure measuring instrument at the current moment;
and when the acceleration at the current moment is larger than or equal to a first preset threshold value, determining that the current posture of the user is a motion posture.
4. The method of claim 3, wherein the determining a current pose of the user further comprises:
when the acceleration at the current moment is smaller than the first preset threshold, acquiring the acceleration of the dynamic blood pressure measuring instrument at the historical moment, wherein the historical moment is the moment which is closest to the current moment and the acceleration is larger than the first preset threshold;
judging whether the direction of the acceleration at the historical moment meets a preset condition or not;
if the direction of the acceleration at the historical moment meets a preset condition, determining that the current posture of the user is a lying posture;
and if the direction of the acceleration at the historical moment does not meet the preset condition, determining that the current posture of the user is a sitting posture.
5. The method of claim 1, wherein selecting a descent measurement mode to measure the user's blood pressure when the current posture is a motion posture comprises:
when the current posture is a motion posture, judging whether the motion posture is a violent motion posture;
if the motion posture is a violent motion posture, selecting a descending measurement mode to measure the blood pressure of the user, and marking the measurement result as a violent motion posture;
and if the motion posture is not a violent motion posture, selecting a descending measurement mode to measure the blood pressure of the user.
6. The method of claim 5, wherein said determining whether the motion gesture is a strenuous motion gesture comprises:
acquiring the heart rate of the user;
when the heart rate is larger than a second preset threshold value, determining that the motion gesture is a violent motion gesture;
and when the heart rate is less than or equal to a second preset threshold value, determining that the motion gesture is a non-violent motion gesture.
7. The method of any one of claims 1-6, further comprising:
and sending the measurement result to a preset terminal.
8. An ambulatory blood pressure measurement mode selection device applied to an ambulatory blood pressure measurement apparatus, the device comprising:
the determining module is used for determining the current postures of the user, wherein the current postures comprise lying postures, sitting postures and motion postures;
the selection module is used for acquiring the current moment when the current posture is the lying posture, selecting a pulse wave measurement mode to measure the blood pressure if the current moment is at night, and selecting an ascending measurement mode to measure the blood pressure if the current moment is at the daytime;
the selection module is further used for selecting an ascending measurement mode to measure the blood pressure when the current posture is a sitting posture;
the selection module is further used for selecting a descending measurement mode to measure the blood pressure when the current posture is the motion posture.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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| JP7476512B2 (en) | 2019-08-15 | 2024-05-01 | オムロンヘルスケア株式会社 | Sphygmomanometer, method of operating the same, and program |
| CN114222523A (en) * | 2019-08-15 | 2022-03-22 | 欧姆龙健康医疗事业株式会社 | Sphygmomanometer, blood pressure calculation method, and program |
| CN113520358A (en) * | 2020-04-21 | 2021-10-22 | 华为技术有限公司 | Blood pressure detection method and wearable device |
| CN113812931A (en) * | 2020-06-18 | 2021-12-21 | 深圳市理邦精密仪器股份有限公司 | Physiological parameter monitoring method, device, equipment and computer storage medium |
| CN117642116A (en) * | 2021-07-21 | 2024-03-01 | 深圳迈瑞生物医疗电子股份有限公司 | Medical equipment working mode setting method and related equipment |
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