CN114947788A - Blood pressure measurement abnormity detection method and device - Google Patents
Blood pressure measurement abnormity detection method and device Download PDFInfo
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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Abstract
The invention belongs to the technical field of Internet of things, and provides a method and a device for detecting blood pressure measurement abnormity, acquiring the measurement posture of the user during measurement, judging the measurement posture to obtain measurement posture feedback, prompting the user of the behavior during measurement, the wearing state of the user in the measurement is obtained in the blood pressure measurement process, the wearing state is judged to obtain the wearing state feedback in the measurement, the behavior in the measurement of the user is prompted, the air pressure signal state measured by the user is obtained in the whole blood pressure measurement process, the air pressure signal state is judged to obtain the air pressure signal state feedback in the whole process, the behavior required to be noticed in the measurement and the next test is prompted to the user, therefore, the whole-process detection and feedback in the measurement before measurement are realized, the systematicness and comprehensiveness of the detection are improved, the real-time feedback and prompt are carried out on the user, and the user is helped to use the system in a standard way.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a method and a device for detecting abnormal blood pressure measurement.
Background
The existing blood pressure measuring method based on the oscillometric method needs to pressurize an air bag (cuff) through an air pump until blood flow is completely blocked, then deflate and release pressure until gas in the air bag is exhausted, pressure signals in the air bag are collected in the pressurizing process or the deflating process, information such as systolic pressure, diastolic pressure, average pressure and the like of a measured person is calculated through the pressure signals, but the accuracy and the referential performance of a measuring result have more factor influences, and the method is specifically as follows:
1) more influence factors exist in the testing process, for example, the testing part of a tester needs to be kept at the same horizontal position with the heart, the tester needs to keep a certain specific posture, the whole testing process needs to be kept quiet, and the like;
2) the measurement result can also be affected by related anomalies of the measurement equipment during the test, such as incomplete gas discharge from the air bag, loosening of the air pump or the pressure sensor, and the like.
Because the blood pressure measurement based on the oscillography can be influenced by the factors, most users are not deeply cognizant of the blood pressure measurement, the measured value of the blood pressure measurement is considered to be the measured value of the blood pressure measurement, and when the measured value is greatly different from the measured value of the blood pressure measurement in a hospital, the user can consider that the measured value of the blood pressure measurement is inaccurate, so that the confidence of the blood pressure measurement instrument is lost.
The prior art does not provide an effective solution to the above problems, and users can usually only fumble or ask customers themselves, or even feel inaccurate in measuring equipment and return goods directly.
In conclusion, the existing blood pressure measuring equipment lacks feedback indication for abnormal detection, so that the blood pressure measurement detection result is inaccurate, the use difficulty of a user is high, and the experience is not good.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides the following solutions.
In one aspect, the present invention provides a method for detecting blood pressure measurement abnormality, including:
in the blood pressure measuring process, obtaining the measuring posture of the user in the measurement;
judging the measurement posture to obtain measurement posture feedback and prompting the user of the behavior in measurement;
in the blood pressure measuring process, the wearing state of a user in measurement is obtained;
and judging the wearing state to obtain wearing state feedback in measurement, and prompting the user of behavior in measurement.
Acquiring the air pressure signal state of the whole measurement process of a user in and after the blood pressure measurement process;
and judging the state of the air pressure signal to obtain air pressure measurement feedback, and prompting the user of the behavior in measurement.
Accordingly, the present invention provides a blood pressure measurement abnormality detection apparatus comprising:
the measurement posture acquisition module is used for acquiring the measurement posture of the user in the measurement process of the blood pressure;
the measurement posture feedback module is used for judging the measurement posture to obtain measurement posture feedback and prompting the user of behavior in measurement;
the wearing state acquisition module is used for acquiring the wearing state of the user in the measurement process of the blood pressure;
and the wearing state feedback module is used for judging the wearing state to obtain wearing state feedback in measurement and prompting the behavior of the user in measurement.
The measured air pressure acquisition module is used for acquiring the air pressure signal state of the whole measurement process of the user in the blood pressure measurement process;
and the air pressure signal state feedback module is used for judging the air pressure signal state to obtain air pressure signal state feedback in measurement and prompting the behaviors of the user needing attention in measurement and next test.
In one aspect, the present invention provides a method for detecting blood pressure measurement abnormality, including:
the method comprises the steps of obtaining a measurement posture, a wearing state and an air pressure signal state of a user in measurement and sending the measurement posture, the wearing state and the air pressure signal state to a server through communication with a blood pressure measuring instrument; the server acquires the measurement posture, the wearing state and the air pressure signal state, and judges the measurement posture, the wearing state and the air pressure signal state to obtain measurement posture feedback, wearing state feedback and air pressure signal state feedback in measurement;
and receiving the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback, and prompting the user to perform the measurement behavior at the user side.
Accordingly, the present invention provides a blood pressure measurement abnormality detection apparatus comprising:
the communication sending module is used for obtaining the measurement posture, the wearing state and the air pressure signal state of the user in the measurement and sending the measurement posture, the wearing state and the air pressure signal state to the server through communication with the blood pressure measuring instrument; the server acquires the measurement posture, the wearing state and the air pressure signal state, and judges the measurement posture, the wearing state and the air pressure signal state to obtain measurement posture feedback, wearing state feedback and air pressure signal state feedback in measurement;
and the receiving feedback module is used for receiving the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback and prompting the user to perform the measurement behavior at the user side.
In one aspect, the present invention provides a method for detecting blood pressure measurement abnormality, including:
collecting the measurement posture, the wearing state and the air pressure signal state in the measurement of the user and sending the measurement posture, the wearing state and the air pressure signal state to a server; the server acquires the measurement posture, the wearing state and the air pressure signal state, judges the measurement posture, the wearing state and the air pressure signal state to obtain measurement posture feedback, wearing state feedback and air pressure signal state feedback, and sends the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback to the user side; and the user side receives the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback, and prompts the user for the behavior in measurement.
Accordingly, the present invention provides a blood pressure measurement abnormality detection apparatus comprising:
the acquisition module is used for acquiring the measurement posture, the wearing state and the air pressure signal state in the measurement of the user and sending the measurement posture, the wearing state and the air pressure signal state to the server; the server acquires the measurement posture, the wearing state and the air pressure signal state, judges the measurement posture, the wearing state and the air pressure signal state to obtain measurement posture feedback, wearing state feedback and air pressure signal state feedback, and sends the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback to the user side; and the user side receives the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback, and prompts the user for the behavior in measurement.
In one aspect, the invention provides a blood pressure measurement abnormality detection system, which comprises a user side, a blood pressure measurement instrument and a server; the user side, the blood pressure measuring instrument and the server can be connected and communicated; the blood pressure measuring instrument collects the measuring posture, the wearing state and the air pressure signal state of a user in the measurement and sends the measuring posture, the wearing state and the air pressure signal state to a server; the server acquires the measurement posture, the wearing state and the air pressure signal state, judges the measurement posture, the wearing state and the air pressure signal state to obtain measurement posture feedback, wearing state feedback and air pressure signal state feedback, and sends the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback to the user side; and the user side receives the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback, and prompts the user for the behavior in measurement.
In one aspect, the invention provides a computer apparatus comprising: a processor and a memory, the memory storing program modules, the program modules being executable on the processor to implement the method of any one of the preceding claims.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a blood pressure measurement abnormity detection method and system, which can obtain the measurement posture of a user in the measurement process, judge the measurement posture to obtain measurement posture feedback and prompt the behavior of the user in the measurement process, obtain the wearing state of the user in the measurement process and judge the wearing state to obtain the wearing state feedback in the measurement process in the blood pressure measurement process to prompt the behavior of the user in the measurement process, obtain the air pressure signal state of the user in the measurement process in the whole blood pressure measurement process, judge the air pressure signal state to obtain the air pressure signal state feedback in the whole process and prompt the user to test the behavior needing attention in the measurement process and next time, thereby realizing the whole-process detection and feedback in the measurement before the measurement, improving the systematicness and comprehensiveness of the detection, feeding back and prompting the user in real time and helping the user to use in a standard way.
Drawings
FIG. 1 is a schematic flow chart of a blood pressure measurement anomaly detection method;
FIG. 2 is a schematic diagram of an architecture of a blood pressure measurement anomaly detection system;
FIG. 3 is a schematic view of a blood pressure measurement posture;
FIG. 4 is an architectural diagram of a computer device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association relationship describing an associated object, meaning that there may be three relationships, for example, and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprises A, B and C" and "comprises A, B, C" means that all three of A, B, C comprise, "comprises A, B or C" means that one of A, B, C comprises, "comprises A, B and/or C" means that any 1 or any 2 or 3 of A, B, C comprises.
It should be understood that in the present invention, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B is associated with a, and B can be determined from a. Determining B from a does not mean determining B from a alone, but may also be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Example one
Referring to fig. 1, the present embodiment provides a blood pressure measurement abnormality detection method.
It should be noted that the execution subject of the method shown in fig. 1 may be a software and/or hardware device. The execution subject of the present application may include, but is not limited to, at least one of: user equipment, network equipment, etc. The user equipment may include, but is not limited to, a computer, a smart phone, a Personal Digital Assistant (PDA), the above mentioned electronic equipment, and the like. The network device may include, but is not limited to, a single network server, a server group of multiple network servers, or a cloud of numerous computers or network servers based on cloud computing, wherein cloud computing is one type of distributed computing, a super virtual computer consisting of a cluster of loosely coupled computers. The present embodiment does not limit this.
Referring to fig. 1, the blood pressure measurement abnormality detection method, which operates on a server side, includes the steps of:
s101, in the process of measuring the blood pressure, obtaining a measurement posture of a user in measurement;
s102, judging the measurement posture to obtain measurement posture feedback, and prompting the user of the behavior in measurement;
s103, acquiring the wearing state of the user in the measurement process in the blood pressure measurement process;
s104, judging the wearing state to obtain wearing state feedback in measurement, and prompting the user for the behavior in measurement;
s105, acquiring the air pressure signal state of the whole measurement process of the user in the blood pressure measurement process and after the blood pressure measurement process is finished;
and S106, judging the state of the air pressure signal to obtain air pressure measurement feedback, and prompting the user of behavior in measurement.
It should be noted that, the air pressure signal state preferably includes:
the initial air pressure signal state when the measurement is started, the air pressure baseline state in the measurement process and the measured pulse wave state after the measurement is finished.
The blood pressure measurement abnormality detection method includes:
when the measurement is started, judging whether the initial air pressure characteristic in the air bag is smaller than a sixth threshold value; if the characteristic is smaller than a sixth threshold value, updating the pressure point corresponding to 0mmHg to obtain that the initial air pressure is normal, and prompting the user to continue blood pressure measurement; otherwise, if the initial air pressure is abnormal, the blood pressure measurement is interrupted, and the user is prompted to manually exhaust air in the air bag and the like;
in the measuring process, judging whether the baseline value characteristic of the air pressure signal is between a seventh threshold value and an eighth threshold value in the pressurizing process and is smaller than an eleventh threshold value in the depressurizing process; if the conditions are met, the normal air pressure baseline is obtained, otherwise, the abnormal air pressure baseline is obtained, the blood pressure measurement is interrupted, and the user is prompted to carry out related operations;
after the measurement is finished, judging the pulse wave state, namely judging whether the pulse wave feature extracted from the air pressure signal is smaller than a twelfth threshold value or not; if the pulse wave characteristics are smaller than a twelfth threshold, obtaining the state that the pulse wave signals are not detected, and prompting the user to wear the clothes normally and tightly; if the pulse wave characteristics are not less than the twelfth threshold and less than the thirteenth threshold, obtaining an over-weak state of the pulse wave signals, and prompting the user to wear the airbag in a tight manner or possibly not match the airbag signals; if the pulse wave characteristics are not less than the thirteenth threshold value and the pulse wave disturbance degree characteristics are greater than the fourteenth threshold value, obtaining a pulse wave disturbance state, outputting a measurement result and prompting a user to perform related operations; and if the pulse wave characteristic is not less than the thirteenth threshold value and the pulse wave disturbance degree characteristic is not more than the fourteenth threshold value, obtaining a normal measurement state, wherein the normal measurement state belongs to the measurement result.
It should be noted that the end of measurement refers to a period of time during which data acquisition is finished but the device has not yet output a measurement value.
Further, the blood pressure measurement abnormality detection method further includes:
acquiring the pre-measurement sign state of a user, wherein the pre-measurement sign state comprises the pre-measurement sign state input by a user side and the pre-measurement sign state acquired by a blood pressure measuring instrument;
judging the state of the physical sign before measurement to obtain feedback before measurement and prompting the behavior of a user before measurement;
it should be noted that, a blood pressure measurement abnormality detection method that is executed at the server side may also be executed at the user side, and the method includes the following steps:
the method comprises the steps of obtaining a measurement posture and a wearing state of a user in measurement and sending the measurement posture and the wearing state to a server through communication with a blood pressure measuring instrument; the server acquires the measurement posture and the wearing state, judges the measurement posture and the wearing state and obtains measurement posture feedback and wearing state feedback in measurement;
and receiving measurement posture feedback and wearing state feedback, and prompting the user of the behavior in measurement.
Further, the blood pressure measurement abnormality detection method further includes:
acquiring the sign state before measurement input by a user through interaction with the user, and sending the sign state before measurement input by the user to a server;
acquiring a pre-measurement physical sign state collected by a blood pressure measuring instrument and sending the pre-measurement physical sign state to a server; the server acquires the sign state before measurement input by the user and collected by the blood pressure measuring instrument, and judges the sign state before measurement input by the user and collected by the blood pressure measuring instrument to obtain feedback before measurement;
and receiving feedback before measurement and prompting the user of the behavior before measurement.
It should be noted that, a blood pressure measurement abnormality detection method operating at the server side may also be correspondingly operated at the blood pressure measurement instrument side, and includes the following steps:
collecting the measurement posture and the wearing state in the measurement of the user and sending the measurement posture and the wearing state to a server; the server acquires the measurement posture and the wearing state, judges the measurement posture and the wearing state to obtain measurement posture feedback and wearing state feedback, and sends the measurement posture feedback and the wearing state feedback to the user side; and the user side receives the measurement posture feedback and the wearing state feedback and prompts the behavior of the user in measurement.
Further, the blood pressure measurement abnormality detection method further includes: collecting the pre-measurement physical sign state of a user and sending the pre-measurement physical sign state to a server; the method comprises the steps that a user side obtains a sign state before measurement input by a user and sends the sign state before measurement to a server; the server acquires the pre-measurement physical sign states input and collected by the user, judges the pre-measurement physical sign states input and collected by the user to obtain pre-measurement feedback, and sends the pre-measurement feedback to the user side; and the user side receives the feedback before measurement and prompts the behavior of the user before measurement.
In this embodiment, the pre-measurement sign state of the user is classified into the pre-measurement sign state input by the user end and the pre-measurement sign state collected by the blood pressure meter, therefore, a part of the data before measurement is acquired by interacting with the user, for example, the user is prompted to input some data which is easy to input by technical means such as APP, an interactive interface and the like, the other part prompts the user to wear the blood pressure measuring instrument and measures the physical sign state of the user before measuring the blood pressure through the blood pressure measuring instrument, therefore, the method is not only helpful for guiding the user to experience the instrument, helping the user to master the factors to be avoided before the blood pressure measurement as soon as possible, improving the inspection accuracy, and the burden of the operation that the user can smoothly measure the blood pressure only through complicated operation before measurement can be avoided, and the user experience is improved.
In a preferred example, measuring the precursor symptom includes an ingestion state and a pre-measurement exercise state; the intake state is provided by a user of the user end prompted by the interactive interface, and the user end is connected and communicated with the blood pressure measuring instrument; after the user wears the blood pressure measuring instrument, the blood pressure measuring instrument measures and provides the motion state before measurement.
It should be noted that the exercise state before measurement refers to whether the user has done deep squat, fast walking or running to accelerate the heart and lung activities and stimulate the blood circulation before starting the blood pressure measurement function. The characteristic of the movement state before measurement is that the movement may cause the blood pressure measurement value to be higher, which affects the measurement precision.
In a preferred example, in terms of data processing and feedback for a pre-measurement motion state, a blood pressure measurement abnormality detection method includes:
acquiring a movement state of a movement sensor before measurement acquired by a user, wherein the movement sensor is configured in a blood pressure measuring instrument;
judging the motion state before measurement through a first equation to obtain feedback before measurement; the first equation is:
wherein the content of the first and second substances,
is shown as
At the moment of time, the time of day,
is shown as
The time of day also needs
The second is separated from the influence of the movement,
is a first
The acceleration level is obtained at the moment,
is the sampling rate of the motion sensor; wherein if
<0, represents when
<In the case of 0, the number of bits,
=0；else if 
>1200, when not satisfied
<0, and
>in the case of the process of 1200,
= 1200; else indicates when not satisfied
<0, and does not satisfy
>1200 is not right
And (6) adjusting.
Will be provided with
Comparing with the first threshold value when
And when the feedback value is smaller than the first threshold value, the influence of the movement of the feedback user before measurement on the measurement result is small, the user is in a normal measurement state, otherwise, the feedback user is in an abnormal measurement state.
It should be noted that the motion sensor may be a three-axis acceleration sensor. When wearing the blood pressure measuring instrument, the user needs to wear the blood pressure measuring instrument in a certain posture.
As shown in fig. 3, in the measurement posture of the wearable device, the position S21 of the heart needs to be at the same horizontal position as the measurement position S22 of the blood pressure meter, and the heart is kept still as much as possible during the measurement without speaking. A three-axis coordinate system X, Y, Z is shown in a measurement position S22 of the blood pressure measuring instrument, and the three-axis coordinate system X, Y, Z can be used as a three-axis reference direction of the three-axis acceleration sensor, wherein the Z axis is perpendicular to the arm upward when the palm is upward, the Y axis is perpendicular to the arm along the thumb direction, and the X axis is along the arm toward the body direction.
It should be noted that the motion state before measurement can be obtained by means of a certain measurement technique. If not to distinguish motion state and ingestion state before measuring, also require the user to pass through user end input and provide, must let the user produce the use experience that complex operation, operation difficulty etc. are not good, be unfavorable for the use widely of product.
Compared with the intake states, such as the medicine taking state, the water drinking state, the food taking state or the wine drinking state, the states can be simply counted in a questionnaire investigation mode and the like, the user can be matched easily, the accuracy of blood pressure measurement can be greatly improved through the statistics of the intake states, and therefore the user matching degree is high, and product performance improvement and product popularization are facilitated.
The intake state includes, but is not limited to, a medicine taking state, a drinking state, a eating state, a drinking state, and the like. Ingestion state is, as the name implies, the state in which an object, including but not limited to solids and liquids, is ingested into the human body. In this embodiment, in the state of ingesting, may cause blood pressure measurement's inaccurate, through prejudgement and feedback before blood pressure measurement, can promote blood pressure measurement's precision.
In a preferred example, in terms of data processing and feedback for intake status, a blood pressure measurement abnormality detection method includes:
prompting a user to input whether to take medicine before measurement through a user end, judging whether a medicine taking time interval is smaller than a set threshold value if the medicine taking time interval is smaller than the set threshold value, and giving feedback before measurement if the medicine taking time interval is smaller than the set threshold value to prompt the user to select measurement time additionally or prompt the state of the user and the condition that a measurement result cannot represent the normal blood pressure condition of the user; and/or
Prompting a user to input whether the user drinks water before measurement through a user terminal, judging whether the drinking time interval is smaller than a set threshold value if the drinking water is drunk, and giving feedback before measurement if the drinking time interval is smaller than the set threshold value to prompt the user to select measurement time additionally or prompt the state of the user and the condition that the measurement result cannot represent the normal blood pressure of the user; and/or
Prompting a user to input whether the user eats before measurement through a user terminal, judging whether the eating time interval is smaller than a set threshold value if the eating time interval is smaller than the set threshold value, and giving feedback before measurement if the eating time interval is smaller than the set threshold value to prompt the user to select measurement time additionally or prompt the state of the user and the condition that the measurement result cannot represent the normal blood pressure of the user; and/or
And prompting the user to input whether the user drinks before measurement through the user terminal, judging whether the drinking time interval is smaller than a set threshold value if the user drinks, and giving feedback before measurement if the drinking time interval is smaller than the set threshold value to prompt the user to select the measurement time additionally or prompt the state of the user and the measurement result that the normal blood pressure condition of the user cannot be represented.
Example two
On the basis of the above embodiments, the present embodiment makes specific optimization and improvement.
For the first aspect of the improvement, in the blood pressure measurement process, a measurement posture in the measurement of the user is acquired, wherein the acquisition mode of the measurement posture comprises:
selecting a measuring position of a blood pressure measuring instrument on an arm to establish a space right-angle three-axis coordinate system with an X axis, a Y axis and a Z axis; preferably, the Z axis is perpendicular to the arm upwards, the Y axis is perpendicular to the arm in the direction of the thumb, and the X axis is in the direction of the body along the arm;
respectively acquiring X axial acceleration, Y axial acceleration and Z axial acceleration of a triaxial acceleration sensor to obtain a measurement posture in measurement; the triaxial acceleration sensor is configured on the blood pressure measuring instrument.
On the basis of obtaining the measurement posture in the measurement, judging the measurement posture to obtain measurement posture feedback in the measurement, and prompting the user of the behavior in the measurement, wherein the method at least comprises the following preferred implementation modes:
the implementation method is as follows: the physical sign state in the judgment measurement is fed back in the measurement, and the behavior in the measurement of the user is prompted, and the method comprises the following steps:
judging whether the X axial acceleration, the Y axial acceleration and the Z axial acceleration are within a second set threshold range or not;
if the X axial acceleration, the Y axial acceleration and the Z axial acceleration are within a second set threshold range, obtaining feedback that the measurement posture is normal in the measurement, and prompting the user to continue to measure the blood pressure; otherwise, obtaining feedback of abnormal measurement posture in the measurement and prompting the user to adjust the measurement posture.
The implementation mode two is as follows: judging the measurement posture in the measurement to obtain measurement posture feedback and prompting the user of the behavior in the measurement, comprising the following steps:
judging whether the X axial acceleration, the Y axial acceleration and the Z axial acceleration are in a second set threshold range or not; simultaneously judging whether the ratio of any two of the X axial acceleration, the Y axial acceleration and the Z axial acceleration is within a third set threshold range;
if the judgment results are both correspondingly within the second set threshold range and the third set threshold range, obtaining feedback that the measurement posture is normal in the measurement, and prompting the user to continue to measure the blood pressure; otherwise, obtaining feedback of abnormal measurement posture in the measurement and prompting the user to adjust the measurement posture.
It should be noted that, in the blood pressure measurement process, the measurement posture of the user during measurement is obtained, and corresponding judgment feedback is performed, so that the influence of the measurement factor can be considered more comprehensively, the measurement accuracy is improved, and the user is guided to measure correctly. It should be further noted that the implementation manner one is simpler than the implementation manner two, and the processing efficiency and the consumption of computing resources are smaller. Compared with the first implementation mode, the second implementation mode can obtain more accurate measurement results.
For the second improved aspect, in the blood pressure measurement process, the method further includes acquiring the motion state of the user in the measurement, wherein the motion state is acquired in a manner that:
selecting a measuring position of a blood pressure measuring instrument on an arm to establish a space right-angle three-axis coordinate system with an X axis, a Y axis and a Z axis; preferably, the Z axis is perpendicular to the arm upwards, the Y axis is perpendicular to the arm in the direction of the thumb, and the X axis is in the direction of the body along the arm;
respectively acquiring X axial acceleration, Y axial acceleration and Z axial acceleration of a triaxial acceleration sensor to obtain a motion state in measurement; the triaxial acceleration sensor is configured on the blood pressure measuring instrument.
On the basis of obtaining the motion state in measurement, judging the physical sign state in measurement to obtain feedback in measurement, and prompting the behavior in measurement of the user, wherein the method at least comprises the following preferred implementation modes:
calculating the resultant acceleration of the X axial acceleration, the Y axial acceleration and the Z axial acceleration;
setting the grade of the resultant acceleration, and calculating the sum S of the grades of the resultant acceleration;
wherein, the first and the second end of the pipe are connected with each other,
is shown as
The acceleration level is obtained at all times;
indicating the ith time instant, i.e., the ith sample point.
Judging whether the sum of the resultant acceleration levels is within a fourth threshold range; if the sum of the combined acceleration levels is within the fourth threshold range, obtaining feedback that the motion state is normal in measurement, and prompting the user to continue blood pressure measurement; otherwise, it is prompted to remain still and discontinue blood pressure measurement. It should be noted that the motion state abnormality during measurement is different from the motion state abnormality before measurement in nature, and the motion state abnormality during measurement refers to the fact that the user measures the blood pressure while moving, so that the obtained measurement result is not a simple problem of being too high or inaccurate, but directly deviates from a true value seriously, and loses the reference meaning. Therefore, the blood pressure is allowed to be further measured only when the movement state is normal in measurement, namely the static state, otherwise, the blood pressure measurement is directly interrupted, so that the user is prevented from obtaining a great error result in an error measurement mode, and the product confidence of the user is further improved. In contrast, the abnormal state of the exercise state before measurement means that the user may experience violent exercise before measurement, so that the blood pressure is not in a stable state, and further the blood pressure measurement value is possibly higher, and the risk that the normal blood pressure of the user cannot be represented exists.
It should be noted that, in the present improvement example, by distinguishing the motion state abnormality during measurement from the motion state abnormality before measurement, targeted feedback is performed for different abnormal situations, so that not only is technical contribution made in the aspects of systematic measurement and accuracy, but also more scientific guidance is provided for users, and product popularization and use are facilitated.
For the improved third aspect, the wearing state in the measurement of the user is acquired, wherein the manner of acquiring the wearing state includes:
the measurement characteristic value of the optical sensor is counted to obtain the wearing state in measurement, and the optical sensor is configured on the blood pressure measuring instrument.
Preferably, the statistical optical sensor measures characteristic values including: and counting the baseline value of the optical sensor and the amplitude of the pulse wave of the optical sensor.
On the basis of obtaining the wearing state in measurement, judging the wearing state in measurement to obtain wearing state feedback, and prompting the user of the behavior in measurement, wherein the method comprises the following preferred implementation modes:
judging whether the measurement characteristic value is in a fifth threshold range or not; if the measurement characteristic value is in the range of the fifth threshold value, obtaining feedback that the wearing state is normal in the measurement, and prompting the user to continue to carry out blood pressure measurement; otherwise, the feedback of abnormal wearing state is returned and the blood pressure measurement is interrupted.
The blood pressure measurement requires the human body to wear a blood pressure measurement instrument, for example, a cuff for wearing the blood pressure measurement instrument. When the blood pressure measuring instrument is not worn on a human body, for example, the blood pressure measuring instrument is worn on a column, feedback of abnormal wearing state is returned, and blood pressure measurement is interrupted, so that follow-up error measurement procedures are prevented from continuing, and the technical effect of saving detection and judgment resources is achieved. It should be noted that the feedback indicating the abnormal wearing state may be to indicate incorrect wearing, no wearing, normal wearing, or the like. It should be noted that the baseline value of the optical sensor may be an infrared light baseline value signal of the optical sensor, and the amplitude of the pulse wave of the optical sensor may be a green light amplitude signal of the optical sensor.
For the fourth aspect of the improvement, in the blood pressure measuring process, the method further includes obtaining a pressure signal state of the user during measurement, after obtaining the pressure signal state, judging the pressure signal state during measurement to obtain feedback during measurement, and prompting a behavior of the user during measurement, and specifically includes:
reading an initial pressure sensor value in the air bag before measurement, and solving an absolute value of a difference between the initial pressure sensor value and a preset value;
judging whether the absolute value is in a sixth threshold range;
if the absolute value is not in the sixth threshold range, obtaining feedback of the initial cuff pressure abnormality in the measurement; conversely, the initial pressure sensor value is updated to the pressure point corresponding to the set pressure value, for example, the initial pressure sensor value is updated to the pressure point corresponding to 0 mmHg.
Extracting a pressure baseline signal through low-pass filtering, wherein the baseline signal is used for calculating systolic pressure and diastolic pressure;
carrying out first-order difference on the pressure baseline signal to obtain a difference signal
；
；
Is the baseline signal for the (i + 1) th sample point,
a baseline signal for the ith sample point; if the blood pressure is measured during the pressurization process, the difference signal is counted
A statistical number less than a seventh threshold or greater than an eighth threshold; if the blood pressure is measured during the decompression process, the difference signal is counted
A statistical number less than a ninth threshold or greater than a tenth threshold;
if the statistical quantity is not at the eleventh threshold, feedback of baseline anomaly is derived.
Further, the pulse wave signal is extracted, and in particular, the pulse wave signal may be extracted by band pass filtering. For example, the pressure signal is band-pass filtered to obtain a pulse wave pass band signal of 0.8 to 3 Hz.
Extracting pulse wave crests, and calculating a mean value of the amplitudes of the pulse wave crests;
if the mean value of the peak amplitudes of the pulse waves is not in the twelfth threshold range, feeding back the pulse wave signals which are not detected; if the peak amplitude mean value of the pulse wave is not at the thirteenth threshold value, feeding back the over-weak state of the pulse wave signal;
calculating a pulse time interval sequence through pulse wave peaks, counting pulse wave ratios of pulse wave time intervals smaller than a set multiple pulse wave interval mean value, such as 0.5 times, or larger than a set multiple (such as 2 times) pulse wave interval mean value, and feeding back pulse wave waveform disorder states if the ratios are larger than a fourteenth threshold value; otherwise, the normal test state is fed back.
Further, when the initial cuff pressure is fed back to be abnormal, the measurement is interrupted, and a user is reminded of the fact that the initial cuff pressure is abnormal and the cuff pressure is required to be checked, which is possibly caused by the fact that the gas in the air bag is not exhausted; if the user manually exhausts the air in the air bag, the initial cuff pressure is still abnormal after multiple operations, and the user is prompted to replace the air bag; if the initial cuff pressure is abnormal after the air bag is replaced, the user is prompted to send the blood pressure measuring instrument for repair.
Further, when the feedback baseline is abnormal, the differential signals are classified.
And if the pressurization abnormal difference signal is larger than the eighth threshold value, the measurement is interrupted, the possibility that the user presses the air bag during measurement is prompted, and the user is reminded to adjust the measurement posture.
And if the pressurization abnormity differential signal is smaller than a seventh threshold value or the pressure reduction abnormity, the measurement is interrupted, the possibility of air leakage or air passage blockage of the blood pressure measuring instrument is prompted to the user, and the user is reminded to check whether the equipment is not assembled.
Further, when the feedback does not detect the pulse wave, the user is reminded of not detecting the pulse wave, and the user is prompted to normally wear the device and appropriately tighten and adjust the device.
Further, when the waveform of the feedback pulse wave is disordered, extracting a high-frequency component which is larger than a set frequency value (for example, 10 Hz) in the pressure signal;
calculating the energy intensity E of the high-frequency signal;
in the above formula
When the energy intensity E is larger than a fifteenth threshold value, the user is reminded that effective pulse waves are not detected, and the wearing of the equipment needs to be adjusted to keep quiet for re-measurement; if the user still prompts that the effective pulse wave is not detected after multiple measurements, the user is reminded of abnormal body health or the blood pressure measuring instrument is sent for inspection.
Further, when the amplitude of the feedback waveform is too weak, the user is reminded that the measurement signal is too weak, and the situation that the wearing is too loose or the air bag model is too large is reminded to check.
It should be noted that, the initial cuff pressure abnormality and the baseline abnormality both cause serious measurement errors, so the corresponding examples include technical features of interrupting blood pressure measurement, and for the cases of pulse wave abnormality, pulse wave disorder, too weak pulse wave waveform amplitude, etc., the measurement process is not interrupted and the measurement result is not output, thereby not only ensuring the measurement accuracy, but also distinguishing the interruption reason and making corresponding treatment, and avoiding the user from having bad use experience due to frequent interruption.
EXAMPLE III
Referring to fig. 2, on the basis of the above embodiment, the present embodiment provides a blood pressure measurement abnormality detection system, including: a user side, a blood pressure measuring instrument and a server; the user side, the blood pressure measuring instrument and the server can be connected and communicated; the blood pressure measuring instrument collects the measuring posture, the wearing state and the air pressure signal state of a user and sends the measuring posture, the wearing state and the air pressure signal state to the server; the server acquires the measurement posture, the wearing state and the air pressure signal state, judges the measurement posture, the wearing state and the air pressure signal state to obtain measurement posture feedback, wearing state feedback and air pressure signal state feedback, and sends the measurement posture feedback, the wearing state feedback and the air pressure signal state feedback to the user side; and the user side receives the measurement posture feedback and the wearing state feedback, and prompts the user to perform the behavior in the measurement at the user side. In addition, the present embodiment provides a blood pressure measurement abnormality detection apparatus, which includes a plurality of program modules, and the plurality of program modules are used for executing any one of the methods in the foregoing embodiments.
Illustratively, a blood pressure measurement abnormality detection apparatus includes:
the measurement posture acquisition module is used for acquiring the measurement posture of the user in the measurement process of the blood pressure;
the measurement posture feedback module is used for judging the measurement posture to obtain measurement posture feedback and prompting the user of behavior in measurement;
the wearing state acquisition module is used for acquiring the wearing state of the user in the measurement process of the blood pressure;
and the wearing state feedback module is used for judging the wearing state to obtain wearing state feedback in measurement and prompting the behavior of the user in measurement.
The measured air pressure acquisition module is used for acquiring the air pressure signal state of the whole measurement process of the user in the blood pressure measurement process;
and the air pressure signal state feedback module is used for judging the air pressure signal state to obtain air pressure signal state feedback in measurement and prompting the behaviors of the user needing attention in measurement and next test.
In one embodiment, referring to fig. 2 and 3, a blood pressure measurement anomaly detection system includes:
in this embodiment, the blood pressure measurement abnormality detection system mainly includes: an upper computer end and a blood pressure measuring instrument. The upper computer end can be communicated with the blood pressure measuring instrument.
The upper computer terminal S11 includes a user terminal (for example, the user terminal may be a mobile phone APP), a server (for example, the server may be a cloud server, may be a local server, may be another computing module or device with data computing processing function), and a gateway.
The blood pressure measuring instrument comprises an MCU processing module, a signal acquisition module S12, an abnormality detection module S13, an abnormality display module S13 and a blood pressure measuring module S15.
The main function of the mobile phone APP can be to collect data or multiple associated APPs from the blood pressure measuring instrument, the upper computer is connected with the blood pressure measuring instrument through Bluetooth, and the APP sends the associated states to the blood pressure measuring instrument. The server is mainly used for storing and processing various information, and the gateway is responsible for screening requests.
The signal acquisition module may be used to acquire three-axis acceleration sensor signals including, but not limited to, 25Hz, infrared and green light including, but not limited to, 25Hz, pressure sensor signals including, but not limited to, 128Hz, optical sensor signals, pressure sensor signals, and the like.
The abnormality detection module may be used to detect a state before measurement, an operation abnormality during measurement, and an abnormality of the apparatus itself.
The abnormal display module can be used for feeding back the abnormal state to the user and guiding the user to carry out proper operation.
The blood pressure measuring module can be used for calculating information such as systolic pressure, diastolic pressure, average pressure, pulse rate and the like of the measurement through the acquired pressure signals.
Example four
Referring to fig. 4, the present embodiment provides a computer apparatus 40 including: a processor 41, a memory 42 and computer programs.
A memory 42 for storing a computer program, which may also be a flash memory (flash). The computer program is, for example, an application program, a functional module, or the like that realizes the above method.
A processor 41 for executing the computer program stored in the memory to implement the steps performed by the apparatus in the above method. Reference may be made in particular to the description relating to the preceding method embodiment.
Alternatively, the memory 42 may be separate or integrated with the processor 41.
When the memory 42 is a device separate from the processor 41, the apparatus may further include:
a bus 43 for connecting the memory 42 and the processor 41.
The present invention also provides a readable storage medium, in which a computer program is stored, and the computer program is used for implementing the method provided by the above-mentioned various embodiments when being executed by a processor.
The readable storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media may be any available media that can be accessed by a general purpose or special purpose computer. For example, a readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium.
Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Additionally, the ASIC may reside in user equipment. Of course, the processor and the readable storage medium may also reside as discrete components in a communication device. The readable storage medium may be a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The present invention also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the device may read the execution instructions from the readable storage medium, and the execution of the execution instructions by the at least one processor causes the device to implement the methods provided by the various embodiments described above.
In the above embodiments of the apparatus, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A blood pressure measurement abnormality detection method is characterized by comprising:
in the blood pressure measuring process, obtaining the measuring posture of the user in the measurement;
judging the measurement posture to obtain measurement posture feedback and prompting the user of the behavior in measurement;
in the blood pressure measuring process, the wearing state of a user in measurement is obtained;
judging the wearing state to obtain wearing state feedback in measurement, and prompting the user of the behavior in measurement;
acquiring the air pressure signal state of the whole measurement process of a user in and after the blood pressure measurement process;
judging the state of the air pressure signal to obtain air pressure measurement feedback, and prompting the user of the behavior in measurement;
the measurement posture acquisition method includes:
selecting a measuring position of a blood pressure measuring instrument on an arm to establish a space right-angle three-axis coordinate system with an X axis, a Y axis and a Z axis;
respectively acquiring X axial acceleration, Y axial acceleration and Z axial acceleration of a triaxial acceleration sensor to obtain a measurement posture in measurement; the three-axis acceleration sensor is configured on the blood pressure measuring instrument;
calculating the resultant acceleration of the X axial acceleration, the Y axial acceleration and the Z axial acceleration;
setting the grade of the resultant acceleration, and calculating the sum S of the grades of the resultant acceleration;
wherein the content of the first and second substances,
is shown as
The acceleration level is obtained at all times;
represents the ith time point, namely the ith sampling point;
judging whether the sum of the acceleration grades is in a fourth threshold range; if the sum of the combined acceleration levels is within the fourth threshold range, obtaining feedback that the motion state is normal in measurement, and prompting the user to continue blood pressure measurement; otherwise, it is prompted to remain still and discontinue blood pressure measurement.
2. The method of claim 1, wherein the obtaining of the wearing state comprises:
the measurement characteristic value of the optical sensor is counted to obtain the wearing state in measurement, and the optical sensor is configured on the blood pressure measuring instrument.
3. The method of claim 2, wherein counting the measured characteristic values of the optical sensor comprises: and counting the baseline value of the optical sensor and the amplitude of the pulse wave of the optical sensor.
4. The method of claim 3, wherein determining the wearing state results in-measurement feedback prompting the user for in-measurement behavior comprises:
judging whether the measurement characteristic value is in a fifth threshold range or not; if the measurement characteristic value is in the range of the fifth threshold value, obtaining feedback that the wearing state is normal in the measurement, and prompting the user to continue to carry out blood pressure measurement; otherwise, the feedback of abnormal wearing state is returned and the blood pressure measurement is interrupted.
5. The method of claim 1, wherein the barometric signal status comprises:
the initial air pressure signal state when the measurement is started, the air pressure baseline state in the measurement process and the measured pulse wave state after the measurement is finished.
6. The method of claim 5, comprising:
when the measurement is started, judging whether the initial air pressure characteristic in the air bag is smaller than a sixth threshold value; if the characteristic is smaller than a sixth threshold value, updating the pressure point corresponding to 0mmHg to obtain that the initial air pressure is normal, and prompting the user to continue blood pressure measurement; otherwise, if the initial air pressure is abnormal, the blood pressure measurement is interrupted, and the user is prompted to manually exhaust the air in the air bag;
in the measuring process, judging whether the baseline value characteristic of the air pressure signal is between a seventh threshold value and an eighth threshold value in the pressurizing process and is smaller than an eleventh threshold value in the depressurizing process; if the conditions are met, the normal air pressure baseline is obtained, otherwise, the abnormal air pressure baseline is obtained, the blood pressure measurement is interrupted, and the user is prompted to carry out related operations;
after the measurement is finished, judging the pulse wave state, namely judging whether the pulse wave feature extracted from the air pressure signal is smaller than a twelfth threshold value or not; if the pulse wave characteristics are smaller than a twelfth threshold, obtaining the state that the pulse wave signals are not detected, and prompting the user to wear the clothes normally and tightly; if the pulse wave characteristics are not less than the twelfth threshold and less than the thirteenth threshold, obtaining an over-weak state of the pulse wave signals, and prompting the user to wear the airbag in a tight manner or possibly mismatching the airbag signals; if the pulse wave characteristics are not less than the thirteenth threshold value and the pulse wave disturbance degree characteristics are greater than the fourteenth threshold value, obtaining a pulse wave disturbance state, outputting a measurement result and prompting a user to perform related operations; and if the pulse wave characteristic is not less than the thirteenth threshold value and the pulse wave disturbance degree characteristic is not more than the fourteenth threshold value, obtaining a normal measurement state, wherein the normal measurement state belongs to the measurement result.
7. The method of claim 3, comprising:
when the feedback does not detect the pulse wave, reminding the user that the pulse wave is not detected, and prompting the user to normally wear and properly tighten and adjust;
when the waveform of the feedback pulse wave is disordered, extracting a high-frequency component which is greater than a set frequency value in the pressure signal;
calculating the energy intensity E of the high-frequency signal;
in the above formula
When the energy intensity E is larger than a fifteenth threshold value, the user is reminded that effective pulse waves are not detected, and the equipment needs to be adjusted to be worn to keep quiet for re-measurement; if the user still prompts that the effective pulse wave is not detected after multiple measurements, the user is reminded of abnormal body health or the blood pressure measuring instrument is sent for inspection.
8. A blood pressure measurement abnormality detection apparatus characterized by comprising a plurality of program modules for executing the method according to any one of claims 1 to 6.
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| CN113520307A (en) * | 2020-04-20 | 2021-10-22 | 华为技术有限公司 | Blood pressure measuring method and device and wearable equipment |
| CN113545762A (en) * | 2020-04-23 | 2021-10-26 | 疆域康健创新医疗科技成都有限公司 | Blood pressure measuring method and blood pressure measuring device |
| US20210330193A1 (en) * | 2020-04-23 | 2021-10-28 | Jiangyu Kangjian Innovation Medical Technology(Chengdu) Co., Ltd | Blood pressure measurement method and blood pressure measurement device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115381418A (en) * | 2022-10-27 | 2022-11-25 | 深圳市景新浩科技有限公司 | Non-invasive high-precision blood pressure detection system |
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