CN115721275A - Pulse wave data acquisition and blood pressure measurement method, device, equipment and medium - Google Patents
Pulse wave data acquisition and blood pressure measurement method, device, equipment and medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 84
- 238000009530 blood pressure measurement Methods 0.000 title abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 196
- 230000036772 blood pressure Effects 0.000 claims description 24
- 238000004422 calculation algorithm Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 11
- 238000012806 monitoring device Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 abstract description 20
- 238000005259 measurement Methods 0.000 description 7
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- 238000010586 diagram Methods 0.000 description 3
- 230000002996 emotional effect Effects 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000010247 heart contraction Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 208000012661 Dyskinesia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000035487 diastolic blood pressure Effects 0.000 description 1
- 230000003205 diastolic effect Effects 0.000 description 1
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- 238000012163 sequencing technique Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000035488 systolic blood pressure Effects 0.000 description 1
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Abstract
The invention relates to a method, a device, equipment and a medium for pulse wave data acquisition and blood pressure measurement, which relate to the field of medical equipment, and the method comprises the following steps: setting a plurality of air pressure sampling points in an air pressure sampling range; selecting an air pressure sampling point as a target sampling point; adjusting the air pressure of the pressurizing device to a target sampling point; acquiring a pulse wave signal of an arm of a user at a target sampling point; judging whether the pulse wave signals contain interference signals or not; if the pulse wave signals do not contain interference signals, taking the pulse wave signals as sampling data of the target sampling points, and storing the sampling data; judging whether all the air pressure sampling points finish sampling; if the air pressure sampling points do not finish sampling, selecting the next air pressure sampling point of the target sampling points as a new target sampling point, and skipping the steps; and if all sampling points finish sampling, all sampling data are used as pulse wave data of the user. The pulse wave data of the user is not influenced by interference factors such as body shaking of the user in the process of acquiring the pulse wave data of the user.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a method, a device, equipment and a medium for pulse wave data acquisition and blood pressure measurement.
Background
According to the principle of measuring the blood pressure by boosting, in the process that the cuff pressure slowly rises from zero, the intensity of pulse wave signals superposed on the cuff pressure is gradually changed from weak to strong to reach the maximum value, and then the intensity of the pulse wave signals is gradually changed from weak to strong.
Blood pressure measurement is the calculation of blood pressure from the relationship between pulse amplitude and cuff pressure. The cuff pressure corresponding to the maximum value of the pulse wave is the average pressure, and the systolic pressure and the diastolic pressure are respectively determined according to the ratio of the maximum pulse wave amplitude when the pulse intensity is reduced and increased.
The pressure-increasing measurement method has the advantages that 1, measurement errors caused by the nonlinear air leakage speed of the pressure-reducing mechanical slow air leakage valve are avoided. 2. The measuring time is shortened, the maximum pressure of the wrist strap is reduced, the precision is higher, and a user feels more comfortable.
However, the traditional boosting measurement method cannot be used by people who move, or is easily influenced by body shaking, movement and the like of the people to be measured in the measurement process, and the accuracy of the boosting measurement method is greatly reduced.
Disclosure of Invention
The invention provides a method, a device, equipment and a medium for pulse wave data acquisition and blood pressure measurement, which aim to solve the problem that the method, the device, the equipment and the medium are easily influenced by the body shaking, the movement and the like of a measured person in the boosting measurement process.
In a first aspect, the present invention provides a pulse wave data acquisition method, including: the device comprises a pressurizing device, a monitoring device, a cuff and a processor, wherein the processor is respectively connected with the pressurizing device and the monitoring device, the pressurizing device and the monitoring device are both arranged in the cuff, and the cuff is used for being arranged on the arm of a user; the method is applied to a processor and comprises the following steps:
setting a plurality of air pressure sampling points in a preset air pressure sampling range;
selecting a gas pressure sampling point from the plurality of gas pressure sampling points as a target sampling point according to the sequence from small to large;
adjusting the air pressure of the pressurizing device to the target sampling point;
acquiring a pulse wave signal of an arm of a user at the target sampling point;
judging whether the pulse wave signals of the arms of the user at the target sampling point contain interference signals or not;
if the pulse wave signals of the arms of the user at the target sampling point do not contain interference signals, taking the pulse wave signals of the arms of the user at the target sampling point as sampling data of the target sampling point, and storing the sampling data of the target sampling point;
judging whether all the air pressure sampling points finish sampling or not;
if the sampling is not finished, selecting the next air pressure sampling point of the target sampling points as a new target sampling point according to the sequence from small to large, and turning to the step of adjusting the air pressure of the pressurizing device to the target sampling point;
and if all sampling points finish sampling, taking the sampling data of all target sampling points as the pulse wave data of the user.
In a second aspect, the present invention provides a method of measuring blood pressure, comprising:
acquiring pulse wave data of a user according to the method of any embodiment of the first aspect;
and measuring the blood pressure of the user by adopting a preset oscillometric method based on the pulse wave data.
In a third aspect, the invention provides a pulse wave data acquisition apparatus comprising means for performing the method according to any of the embodiments of the first aspect.
In a fourth aspect, the invention provides a blood pressure measurement device comprising means for performing the method according to any of the embodiments of the second aspect.
In a fifth aspect, an electronic device is provided, which includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
a processor, configured to implement the steps of the pulse wave data acquisition method according to any one of the embodiments of the first aspect or implement the steps of the blood pressure measurement method according to any one of the embodiments of the second aspect when executing the program stored in the memory.
In a sixth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the pulse wave data acquisition method according to any one of the embodiments of the first aspect, or which computer program, when being executed by a processor, carries out the steps of the blood pressure measurement method according to any one of the embodiments of the second aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
the method provided by the embodiment of the invention comprises the steps of dividing the method into a plurality of air pressure sampling points, judging whether an interference signal is received or not when the air pressure sampling points are reached, if the interference signal is received, continuing to measure after waiting for a preset time interval, not increasing the air pressure in the waiting process, and storing the pulse wave data of the user corresponding to the current air pressure until the interference signal is not received, so that the pulse wave data containing the interference signal are eliminated, the air pressure boosting process corresponding to all the acquired pulse wave data still linearly rises, finally, the blood pressure result of the user can be obtained by calculating according to an oscillography, and the effect that the blood pressure result of the user is not influenced by interference factors such as shaking of the body of the user in the process of acquiring the pulse wave data of the user is realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a pulse wave data acquisition method according to embodiment 1 of the present invention;
fig. 2 is a schematic flowchart of a pulse wave data acquisition method according to embodiment 1 of the present invention;
fig. 3 is a schematic flow chart of a blood pressure measuring method according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of a pulse wave data acquisition device according to embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of a blood pressure measuring device provided in embodiment 2 of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Fig. 1 is a schematic flow chart of a pulse wave data acquisition method according to an embodiment of the present invention. An embodiment of the present invention provides a pulse wave data acquisition method, and particularly, referring to fig. 1, the pulse wave data acquisition method includes the following steps S101 to S109.
S101, setting a plurality of air pressure sampling points in a preset air pressure sampling range.
In specific implementation, a preset air pressure sampling range is divided to obtain a plurality of air pressure sampling points, the air pressure sampling points refer to time points for collecting data of a user, and when the air pressure sampling points are located, the monitoring device works to acquire pulse wave data of the user. And dividing a plurality of air pressure sampling points so as to obtain the pulse wave data of the user for further processing when the monitoring device works.
In an embodiment, the step S101 specifically includes: and setting a plurality of air pressure sampling points in the air pressure sampling range according to the same air pressure interval.
In specific implementation, the preset air pressure sampling range is divided uniformly and equally so as to obtain more accurate sampling data.
And S102, selecting the air pressure sampling points from the air pressure sampling points as target sampling points according to the sequence from small to large.
In specific implementation, after the sphygmomanometer is started, the air pressure of the pressurizing device rises at a constant speed, based on the divided air pressure sampling points, the air pressure sampling points are selected from the air pressure sampling points from small to large to serve as target sampling points, and then the currently selected target sampling points are further processed.
And S103, adjusting the air pressure of the pressurizing device to the target sampling point.
In specific implementation, after the air pressure value of the pressurizing device is adjusted to the air pressure value of the target sampling point, the increase of the air pressure in the pressurizing device is stopped.
And S104, acquiring the pulse wave signals of the arm of the user at the target sampling point.
In specific implementation, the pulse wave signals of the arm of the user at the target sampling point are obtained through the monitoring device. The pulse wave signals of the arms of the user at the target sampling points are obtained after the plurality of target sampling points are divided, the accuracy of the pulse wave signals can be determined by the number of the divided target sampling points, the number of the divided target sampling points can be specifically set according to an actual scene, for example, in one embodiment, 100 target sampling points are divided, and finally 100 pulse wave signals of the arms of the user are obtained.
And S105, judging whether the pulse wave signals of the arm of the user at the target sampling point contain interference signals.
In specific implementation, whether interference signals are included is judged based on pulse wave signals of the arms of the user at the target sampling point, wherein the interference signals comprise body shaking, heart beating acceleration caused by emotional excitement and the like. Whether the pulse wave signal contains an interference signal or not can be judged according to a preset algorithm, or an inductor is arranged, the user is monitored through the inductor, and when the inductor monitors that the user moves and shakes, the output signal is the interference signal.
In an embodiment, the step S105 specifically includes: and detecting whether the pulse wave signals of the arms of the user at the target sampling point contain interference signals or not according to a preset interference detection algorithm.
In specific implementation, the pulse wave signals of the arms of the user at the target sampling point are detected according to a preset interference detection algorithm, so that the current state of the user can be detected, for example, when the heart beating acceleration of the user caused by emotional excitement is obtained when the pulse wave signals of the arms of the user at the target sampling point are obtained, the heart rate of the user is calculated to be too fast through the preset interference detection algorithm, and the pulse wave signals of the arms of the user at the target sampling point comprise interference signals.
In one embodiment, the interference detection algorithm comprises: and (3) system air leakage algorithm: when the pressure of an expected pulse sampling point is reached, the pump valve is in a closed state, the pressure trend is not changed theoretically (except for pulse), but a general system has certain air leakage, the air leakage degree can be calculated according to the change of the pressure trend line, measurement is carried out within an acceptable range, and otherwise, error prompt is carried out when a certain threshold value is reached. The anti-motion algorithm comprises the following steps: the pulse is generated by the pumping activity of the heart, and the systolic period, the diastolic period, the heartbeat interval and the pulse intensity of the human heart are strictly in a certain range, so that different people and different cases are in the range. The pulse is used as the expression form of heart pumping blood, also has the characteristics of a very regular pattern, and the reaction is that the rising period, the falling period, the pulse interval and the amplitude of the pulse are all strictly limited within a certain range. The anti-motion algorithm is realized on the basis of the method, the rising period, the falling period, the interval period and the amplitude are calculated by continuously identifying the fluctuation of the pressure, the fluctuation which does not accord with the pulse characteristics of the human body belongs to interference, although different motion models have different parameter characteristics, the probability of the coincidence with the pulse characteristics is very low, and the motion models which accord with the pulse characteristics can be completely ignored. Pulse abnormal movement recognition: when measuring blood pressure, a patient is generally required to be stationary for a period of time, but the waiting time is often not enough, the heart activity is still in the process of gradually recovering calmness in the measurement process, in addition, the heart activity changes and the like caused by emotional fluctuation in the measurement process, and the factors can cause the pulse characteristics to change. Several pulses can be continuously monitored on the pressure step, and the change of the pulse characteristics can be identified by comparing the difference. It should be noted that the system air leakage algorithm, the anti-exercise algorithm, and the pulse abnormal motion recognition listed in the above interference detection algorithm are only examples, and the specific interference detection algorithm process may be determined by referring to the existing data, which is not limited in the present invention.
In an embodiment, referring to fig. 2, after the above step S105, the method further includes step S110: if the pulse wave signal of the arm of the user at the target sampling point contains an interference signal, the air pressure of the pressurizing device is kept at the target sampling point, and the step S104 is carried out after a preset time interval.
In a specific implementation, if the pulse wave signal of the arm of the user at the target sampling point contains an interference signal, the air pressure of the pressurizing device is continuously kept at the target sampling point, that is, the air pressure in the pressurizing device is kept unchanged, and the step S104 is skipped after waiting for a preset time, where the specific preset time may be set according to an actual scene, for example, the step S104 is skipped after waiting for 3 seconds. And the measurement is carried out after the preset time is waited, so that the influence of interference signals can be avoided, the accuracy of obtaining pulse wave signals is improved, and the time can be flexibly set according to actual scenes.
And S106, if the pulse wave signal of the arm of the user at the target sampling point does not contain an interference signal, taking the pulse wave signal of the arm of the user at the target sampling point as the sampling data of the target sampling point, and storing the sampling data of the target sampling point.
In specific implementation, whether the target sampling point contains an interference signal is further judged, if the target sampling point contains the interference signal, the preset time is waited for obtaining the pulse wave signal of the current air pressure, the pulse wave signal with the interference signal under the current air pressure can be effectively eliminated, and the target sampling point, namely the pulse wave signal obtained by the current air pressure, is ensured to be free of the interference signal. Therefore, the sampling data of the target sampling points are stored without interference signals.
And S107, judging whether all the air pressure sampling points finish sampling.
In specific implementation, whether the maximum air pressure sampling point is selected from the air pressure sampling points from small to large is judged.
S108, if the sampling of the air pressure sampling points is not finished, selecting the next air pressure sampling point of the target sampling points as a new target sampling point according to the sequence from small to large, and turning to the step of adjusting the air pressure of the pressurizing device to the target sampling point and acquiring the pulse wave signal of the arm of the user at the target sampling point.
In specific implementation, if the maximum barometric pressure sampling point is not selected, that is, the pulse wave data of the user of all the divided barometric pressure sampling points is not obtained, the next barometric pressure sampling point of the currently selected target sampling point needs to be used as a new target sampling point, and the step S103 is skipped. The divided air pressure sampling points are ensured to collect the pulse wave data of the user, so that the blood pressure of the user is measured more accurately.
And S109, if all sampling points finish sampling, taking the sampling data of all target sampling points as the pulse wave data of the user.
In specific implementation, if all sampling points finish sampling, the maximum air pressure sampling point is selected from the air pressure sampling points from small to large, the blood pressure of the user can be measured according to the acquired pulse wave data of all users, and the blood pressure measurement is finished.
In an embodiment, the step S109 specifically includes: and if all sampling points finish sampling, controlling the conduction of the pressure release valve.
In specific implementation, if all sampling points finish sampling, namely data acquisition is finished, the pressurizing device does not need to pressurize the arm of the user, and the pressure relief valve can be controlled to be communicated to release the air pressure in the pressurizing device to finish blood pressure measurement.
The method comprises the steps of dividing the blood pressure into a plurality of air pressure sampling points, judging whether an interference signal is received or not when the air pressure sampling points are reached, if the interference signal is received, continuing to measure after waiting for a preset time interval, not increasing the air pressure in the waiting process, and storing the pulse wave data of a user corresponding to the current air pressure until the interference signal is not received, so that the pulse wave data containing the interference signal are eliminated, the air pressure boosting process corresponding to all the collected pulse wave data still linearly rises, and finally calculating according to an oscillography to obtain the blood pressure result of the user, so that the effect that the pulse wave data of the user are not influenced by interference factors such as shaking of the body of the user in the process of collecting the pulse wave data of the user is achieved.
Example 2
Fig. 3 is a schematic flow chart of a blood pressure measuring method according to an embodiment of the present invention. An embodiment of the present invention provides a blood pressure measuring method, and specifically, referring to fig. 3, the blood pressure measuring method includes the following steps S201 to S202.
S201, collecting pulse wave data of a user according to the method of any embodiment 1.
In specific implementation, the pulse wave data acquisition method of embodiment 1 can acquire the pulse wave data without interference of the user.
And S202, measuring the blood pressure of the user by adopting a preset oscillography based on the pulse wave data.
In specific implementation, the blood pressure of the user is calculated by substituting the pulse wave data into a preset oscillometric method. The oscillometric calculation process is as follows: firstly, a plurality of pulse wave data of the same pressure point are averaged to obtain one pulse wave data corresponding to one pressure point, and errors caused by signal acquisition are further reduced. Secondly, sequencing the pulse wave data corresponding to each pressure point according to the size of the pressure point to form an envelope trend line of the pulse amplitude changing along with the pressure. And fitting the discrete curve by using a preset fitting algorithm to form a smoother envelope trend line, wherein the fitting principle of the fitting algorithm is determined by referring to the existing data, and the invention is not particularly limited. And finally, substituting a preset high-low pressure proportional coefficient into the trend line to obtain high pressure and low pressure, wherein the high-low pressure proportional coefficient is the proportional coefficient of the high pressure and the low pressure which can be obtained by collecting and analyzing a large amount of clinical test data in advance and carrying out statistical analysis. It should be noted that the oscillometric calculation process is only an example, and the specific oscillometric calculation process can be determined by referring to the existing data, and the invention is not limited in particular.
Example 3
Referring to fig. 4, an embodiment of the present invention further provides a pulse wave data collecting apparatus 200, which includes a setting unit 201, a first selecting unit 202, an adjusting unit 203, an obtaining unit 204, a first determining unit 205, a storing unit 206, a second determining unit 207, a second selecting unit 208, and a determining unit 209.
The setting unit 201 is configured to set a plurality of air pressure sampling points within a preset air pressure sampling range.
In an embodiment, the setting unit 201 specifically includes:
and setting a plurality of air pressure sampling points in the air pressure sampling range according to the same air pressure interval.
The first selecting unit 202 is configured to select a gas pressure sampling point from the plurality of gas pressure sampling points as a target sampling point according to a descending order.
And the adjusting unit 203 is used for adjusting the air pressure of the pressurizing device to the target sampling point.
An obtaining unit 204, configured to obtain a pulse wave signal of the arm of the user at the target sampling point.
A first determining unit 205, configured to determine whether the pulse wave signal of the arm of the user at the target sampling point includes an interference signal.
In an embodiment, the first determining unit 205 specifically includes:
and detecting whether the pulse wave signals of the arms of the user at the target sampling point contain interference signals or not according to a preset interference detection algorithm.
In an embodiment, after the first determining unit 205, the method further includes: if the pulse wave signal of the arm of the user at the target sampling point contains an interference signal, the air pressure of the pressurizing device is kept at the target sampling point, and the acquiring unit 204 is switched to after a preset time interval.
The storage unit 206 is configured to, if the pulse wave signal of the arm of the user at the target sampling point does not include an interference signal, use the pulse wave signal of the arm of the user at the target sampling point as sampling data of the target sampling point, and store the sampling data of the target sampling point.
The second determining unit 207 is configured to determine whether all the air pressure sampling points complete sampling.
And the second selecting unit 208 is configured to select, if there is an incomplete sampling of the air pressure sampling points, a next air pressure sampling point of the target sampling points as a new target sampling point according to a sequence from small to large, and transfer the new target sampling point to the adjusting unit 203.
And the determining unit 209 is configured to use the sampling data of all target sampling points as the pulse wave data of the user if all sampling points are completely sampled.
In an embodiment, the determining unit 209 specifically includes:
and if all sampling points finish sampling, controlling the conduction of the pressure relief valve.
Example 4
Referring to fig. 5, the embodiment of the present invention further provides a blood pressure measuring device 300, which includes an acquisition unit 301 and a utilization unit 302.
An acquisition unit 301 for acquiring pulse wave data of a user according to the method of any one of embodiment 1.
An applying unit 302 is configured to measure the blood pressure of the user by using a preset oscillometric method based on the pulse wave data.
As shown in fig. 6, an embodiment of the present invention provides an electronic device, which includes a processor 111, a communication interface 112, a memory 113, and a communication bus 114, where the processor 111, the communication interface 112, and the memory 113 complete mutual communication via the communication bus 114,
a memory 113 for storing a computer program;
in an embodiment of the present invention, the processor 111 is configured to implement the pulse wave data collecting method provided in any one of the method embodiments 1 or implement the blood pressure measuring method provided in any one of the method embodiments 2 when executing the program stored in the memory 113.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the pulse wave data acquisition method according to any one of the method embodiments 1, or the computer program, when executed by the processor, implements the steps of the blood pressure measurement method according to any one of the method embodiments 2.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A pulse wave data acquisition method, characterized in that a sphygmomanometer comprises: the device comprises a pressurizing device, a monitoring device, a cuff and a processor, wherein the processor is respectively connected with the pressurizing device and the monitoring device, the pressurizing device and the monitoring device are both arranged in the cuff, and the cuff is used for being arranged on the arm of a user; the method is applied to a processor and comprises the following steps:
setting a plurality of air pressure sampling points in a preset air pressure sampling range;
selecting a gas pressure sampling point from the plurality of gas pressure sampling points as a target sampling point according to the sequence from small to large;
adjusting the air pressure of the pressurizing device to the target sampling point;
acquiring a pulse wave signal of an arm of a user at the target sampling point;
judging whether the pulse wave signals of the arms of the user at the target sampling point contain interference signals or not;
if the pulse wave signals of the arms of the user at the target sampling points do not contain interference signals, taking the pulse wave signals of the arms of the user at the target sampling points as sampling data of the target sampling points, and storing the sampling data of the target sampling points;
judging whether all the air pressure sampling points finish sampling or not;
if the sampling is not finished, selecting the next air pressure sampling point of the target sampling points as a new target sampling point according to the sequence from small to large, and turning to the step of adjusting the air pressure of the pressurizing device to the target sampling point;
and if all sampling points finish sampling, taking the sampling data of all target sampling points as the pulse wave data of the user.
2. The method according to claim 1, wherein after determining whether the pulse wave signal of the arm of the user at the target sampling point contains an interference signal, further comprising:
if the pulse wave signals of the arms of the user at the target sampling point contain interference signals, the air pressure of the pressurizing device is kept at the target sampling point, and after a preset time interval, the step of obtaining the pulse wave signals of the arms of the user at the target sampling point is carried out.
3. The method of claim 1, wherein the setting a plurality of barometric pressure sampling points within a preset barometric pressure sampling range comprises:
and setting a plurality of air pressure sampling points in the air pressure sampling range according to the same air pressure interval.
4. The method of claim 1, wherein determining whether the pulse wave signal of the arm of the user at the target sampling point contains an interference signal comprises:
and detecting whether the pulse wave signals of the arms of the user at the target sampling point contain interference signals or not according to a preset interference detection algorithm.
5. The method of claim 1, wherein the pressurizing device comprises a pressure relief valve coupled to the processor, the method further comprising:
and if all sampling points finish sampling, controlling the conduction of the pressure release valve.
6. A method of measuring blood pressure, comprising:
acquiring pulse wave data of a user according to the method of any one of claims 1-5;
and measuring the blood pressure of the user by adopting a preset oscillography based on the pulse wave data.
7. A pulse wave data acquisition device comprising means for performing the method of any one of claims 1-5.
8. A blood pressure measuring device comprising means for performing the method of any of claim 6.
9. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the method of any one of claims 1 to 5 when executing a program stored in the memory; or implementing the steps of the method of any of claims 6.
10. A computer-readable storage medium, on 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 5; or which computer program, when being executed by a processor, carries out the steps of the method as claimed in any one of the claims 6.
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