CN115399743A - Control method, device and server of blood pressure measuring instrument - Google Patents
Control method, device and server of blood pressure measuring instrument Download PDFInfo
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Abstract
The invention provides a control method, a device and a server of a blood pressure measuring instrument, relating to the technical field of blood pressure measurement and comprising the following steps: acquiring a pulse wave signal of a target object and a current pressure value in a cuff of a blood pressure measuring instrument; analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to a target object; and controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at the target inflation rate until the current pressure value reaches the target pressure value, and controlling the inflator pump to perform deflation operation. According to the invention, the target inflation rate and the target pressure value are intelligently adjusted, so that the accuracy of blood pressure measurement can be improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of blood pressure measurement, in particular to a control method and device of a blood pressure measuring instrument and a server.
Background
Blood pressure measuring apparatu is one kind through wearing the instrument that carries out blood pressure measurement operation in wrist department, at present, when utilizing blood pressure measuring apparatu to carry out blood pressure measurement, because the difference of numerical value such as user's wrist circumference/arm circumference, wear elasticity, artery elasticity, rhythm of the heart, when aerifing and reaching same threshold value, can lead to measuring duration, pulse wave quantity and waveform characteristics to be different to influence user experience, in addition, blood pressure measuring apparatu's target pressure value sets up to the fixed value usually, and the flexibility is lower, unable accurate and individual phase-match, thereby reduce the measuring degree of accuracy.
Disclosure of Invention
In view of this, the present invention aims to provide a control method, device and server for a blood pressure measuring instrument, which can improve the accuracy of blood pressure measurement and improve user experience by intelligently adjusting a target inflation rate and a target pressure value.
In a first aspect, an embodiment of the present invention provides a method applied to a processor of a blood pressure measuring instrument, where the method includes: acquiring a pulse wave signal of a target object and a current pressure value in a cuff of a blood pressure measuring instrument; analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to a target object; and controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at the target inflation rate until the current pressure value reaches the target pressure value, and controlling the inflator pump to perform deflation operation.
In one embodiment, before the step of analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object, the method includes: and controlling the inflator to perform the inflation operation at the maximum inflation rate before the current pressure value reaches the preset pressure threshold value.
In one embodiment, the signal analysis model comprises: the pulse wave analysis model and the pressure value analysis model utilize the pre-established signal analysis model to analyze and process the pulse wave signal and the current pressure value to obtain a target inflation rate and a target pressure value corresponding to the target object, and the method comprises the following steps of: analyzing and calculating a pre-established training library, a pulse wave signal and a current pressure value by using a pulse wave analysis model to obtain a target inflation rate; acquiring a first pressure value and a first inflation time when inflation is carried out at a target inflation rate; and substituting the first pressure value and the first inflation time into the pressure value analysis model to obtain a target pressure value.
In one embodiment, the step of analyzing and calculating a pre-established training library, a pulse wave signal and a current pressure value by using a pulse wave analysis model to obtain a target inflation rate includes: acquiring a feature set from a training library; calculating the Euclidean distance by using the feature set, the pulse wave signal and the current pressure value; and determining the duty ratio corresponding to the minimum Euclidean distance as an ideal duty ratio, wherein the ideal duty ratio corresponds to the target inflation rate of the inflator.
In one embodiment, before the step of substituting the first pressure value and the first inflation time into the pressure value analysis model, the method further includes: acquiring first training data, wherein the first training data is second inflation time for inflating at the maximum inflation rate and a second pressure value corresponding to the second inflation time before the current pressure value reaches a pressure threshold; and establishing a fitting curve by using the second inflation time and the second pressure value to obtain second training data, wherein the second training data is a third inflation time and a third pressure value which are predicted according to the fitting curve and reach the average pressure.
In one embodiment, a method comprises: and substituting the first pressure value, the first inflation time, the first training data and the second training data into the pressure value analysis model to obtain a target pressure value.
In one embodiment, the step of controlling an inflator of the blood pressure monitor to perform an inflation operation at a target inflation rate includes: when the current inflation rate deviates from the target inflation rate, the duty ratio of the analog control device is adjusted, and the working voltage of the inflator pump is adjusted, so that the inflator pump executes inflation operation at the target inflation rate.
In a second aspect, an embodiment of the present invention further provides a device applied to a processor of a blood pressure measuring apparatus, where the device includes: the signal acquisition module is used for acquiring a pulse wave signal of a target object and a current pressure value in a cuff of the blood pressure measuring instrument; the signal analysis module is used for analyzing and processing the pulse wave signal and the current pressure value by utilizing a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to a target object; and the control measurement module is used for controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at a target inflation rate until the current pressure value reaches a target pressure value, and controlling the inflator pump to perform deflation operation.
In a third aspect, an embodiment of the present invention further provides a server, including a processor and a memory, where the memory stores computer-executable instructions capable of being executed by the processor, and the processor executes the computer-executable instructions to implement any one of the methods provided in the first aspect.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions that, when invoked and executed by a processor, cause the processor to implement any one of the methods provided in the first aspect.
The embodiment of the invention has the following beneficial effects:
the control method, the device and the server of the blood pressure measuring instrument provided by the embodiment of the invention are used for acquiring the pulse wave signal of a target object and the current pressure value in the cuff of the blood pressure measuring instrument; analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to a target object; and controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at a target inflation rate until the current pressure value reaches a target pressure value, and controlling the inflator pump to perform deflation operation. According to the embodiment of the invention, the target inflation rate and the target pressure value are intelligently adjusted, so that the accuracy of blood pressure measurement can be improved, and the user experience is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
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 that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart of a control method of a blood pressure measuring instrument according to an embodiment of the present invention;
FIG. 2 is a schematic view of an inflation system according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another control method of a blood pressure measuring apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control device of a blood pressure measuring instrument according to an embodiment of the present invention;
fig. 5 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 of the present invention will be clearly and completely described below with reference to the embodiments, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.
At present, an oscillometric method is a blood pressure watch measurement technology widely used at present, a blood pressure measurement device based on the oscillometric method measurement principle is divided into an inflation stage measurement technology and a deflation stage measurement technology, the inflation stage measurement technology generally has large signal interference but has the characteristic of fast measurement, although the deflation stage measurement technology has higher signal quality than the inflation stage measurement technology, the power consumption is large, and two stages of fast pressurization and deflation are required, so that the measurement time is long, and the user experience is poor. Based on the above, the control method of the blood pressure measuring instrument provided by the embodiment of the invention can improve the accuracy of blood pressure measurement and improve the user experience by intelligently adjusting the target inflation rate and the target pressure value.
Based on the schematic flow chart of the control method of the blood pressure measuring instrument shown in fig. 1, the method mainly includes the following steps S102 to S106:
step S102, obtaining a pulse wave signal of a target object and a current pressure value in a cuff of a blood pressure measuring instrument. In one embodiment, characteristics such as a wrist circumference, a pulse wave intensity, a PPG signal quality, a heart rate, a target inflation rate, and an inflation duration when the cuff is inflated to a pressure threshold value need to be acquired, and an intelligent inflation scheme (that is, a target inflation rate and a target pressure value are determined) is formulated for different individuals performing blood pressure measurement.
And step S104, analyzing the pulse wave signals and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object. Wherein, after the target inflation rate is the arrival pressure threshold, the inflation rate of the pump among the blood pressure measuring apparatu, the target pressure value is the maximum pressure value that aerifys and arrive, and the signal analysis model includes: in one embodiment, according to characteristics of wrist circumference, pulse wave intensity, PPG signal quality, heart rate, target inflation rate, inflation duration when inflation reaches a pressure threshold value and the like, the optimal duty ratio is calculated through the pulse wave analysis model for different individuals, the target inflation rate is determined according to the optimal duty ratio, and the target pressure value is calculated through the pressure value analysis model.
And S106, controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at a target inflation rate until the current pressure value reaches a target pressure value, and controlling the inflator pump to perform deflation operation. In one embodiment, the analog control device can adjust the voltage and the current by adjusting the duty ratio of a Pulse Width Modulation (PWM) technique, and after an ideal duty ratio is set, the current inflation rate deviates from the target inflation rate due to the binding mode of the blood pressure measuring instrument, air leakage and the like, so that the inflation rate of the inflator of the blood pressure measuring instrument is kept consistent by fine-tuning the duty ratio in real time by the PWM.
According to the control method of the blood pressure measuring instrument provided by the embodiment of the invention, the target inflation rate and the target pressure value are intelligently adjusted, so that the accuracy of blood pressure measurement can be improved, and the user experience is improved.
The embodiment of the present invention further provides an implementation manner for calculating a target inflation rate and a target pressure value corresponding to a target object, which is specifically described in the following (1) to (3):
(1) The embodiment of the present invention further provides an implementation manner of analyzing and calculating a pre-established training library, a pulse wave signal and a current pressure value by using a pulse wave analysis model to obtain a target inflation rate, which specifically refers to the following steps (a) to (c):
(a) And acquiring a feature set from a training library. Wherein the feature set comprises PPG signal features: amplitude A, signal quality SNR, heart rate HR, inflation curve characteristics when inflated to a pressure threshold: time t1 to inflate to the pressure threshold, coefficients a, b and c of the inflation curve exponential equation at maximum duty cycle inflation, and other features: in one embodiment, data acquisition is performed according to different people to obtain a training library, wherein the characteristic sequence of the training library is as follows:
feature{i}＝{Vi、Wi、Ai、SNRi、HRi、t1i、ai、bi、ci、Di}
(b) And calculating the Euclidean distance by using the feature set, the pulse wave signals and the current pressure value. In a real-time mode, the step of calculating the Euclidean distance by using the feature set, the pulse wave signal and the current pressure value comprises the following steps: acquiring data characteristics of the current measurement:
feature＝{V、W、A、SNR、HR、t1、a、b、D} (1-1)
taking the data characteristic measured at the present time and the database characteristic (not including the target duty ratio) as a characteristic set to obtain a new array:
feature{i+1}＝{Vi+1、Wi+1、Ai+1、SNRi+1、HRi+1、t1i+1、ai+1、bi+1、ci+1} (1-2)
that is, the 1 st … i is the training library data, where i +1 is the data of the current measurement.
Normalizing each feature to obtain a normalized feature set:
nor_feature{i+1}＝＝{Vi+1/max(V)、Wi+1/max(W)、Ai+1/max(A)、SNRi+1/max(SNR)、HRi+1/max(HR)、t1i+1/max(t1)、ai+1/max(a)、bi+1/max(b)、ci+1/max(c)} (1-3)
the Euclidean distances of i +1 and 1 … i are calculated, respectively:
(c) And determining the duty ratio corresponding to the minimum Euclidean distance as an ideal duty ratio, wherein the ideal duty ratio corresponds to the target inflation speed of the inflator. In which the target inflation rate may vary depending on the individual who performs the blood pressure measurement and the measurement environment.
(2) A first pressure value and a first inflation time when inflation is performed at a target inflation rate are obtained. In one embodiment, before the current pressure value reaches a preset pressure threshold, the inflator is controlled to perform an inflation operation at a maximum inflation rate, and when the air pump is inflated at a fixed driving voltage, an inflation curve generally shows an exponential growth trend, so that a stepped inflation mode (before the pressure threshold and after the pressure threshold) is adopted, the air pump is rapidly inflated at a maximum duty ratio DMAX (maximum inflation rate) before the inflation reaches the pressure threshold, and the air pump is uniformly inflated at an ideal duty ratio D (target inflation rate) after the inflation reaches the pressure threshold.
(3) The embodiment of the present invention further provides an implementation manner in which the first pressure value and the first inflation time are substituted into the pressure value analysis model to obtain the target pressure value, which is specifically described in the following (a) to (C):
(A) As shown in fig. 3, the solid line is a curve of maximum duty cycle inflation, and first training data is obtained, where the first training data is a second inflation time for performing inflation at the maximum inflation rate and a second pressure value corresponding to the second inflation time before the current pressure value reaches the pressure threshold. In one embodiment, when the inflation pressure reaches the pressure threshold (40 mmHg for example), a polynomial fit is performed on the inflation pressure according to the curve characteristics of the inflation pressure to obtain coefficients a, b, and c, and the fitting equation is as follows:
F(t)＝a*t 2 +b*t+c (3-1)
when the whole inflation process is inflated with the maximum duty ratio DMAX, the whole inflation process can be considered to be inflated with the curve, therefore, the relation between the average pressure MAP and the maximum pressure value FMAX and the measurement time can be obtained, when the system detects the value of MAP and the measurement time t2 of actually reaching MAP, the time tMAP of reaching the average pressure when the system inflates with the maximum duty ratio can be calculated, and the time tMAX of inflating to the maximum pressure value with the maximum duty ratio can be obtained according to the formula (3-1), such as the formula (3-2):
(B) As shown in fig. 3, the dotted line is an actual inflation curve, and a fitting curve is established by using the second inflation time and the second pressure value to obtain second training data, where the second training data is a third inflation time and a third pressure value predicted according to the fitting curve to reach the average pressure. In one embodiment, starting at time t1, the actual inflation rate is inflated at a constant rate at the desired duty cycle D, and then the average inflation rate v at t1 to t2 is taken as the actual inflation rate:
from the moment t1, the system inflates at a constant speed according to the inflation rate v, and then the time t3 from actual inflation to the maximum pressure value can be calculated:
and when the air is charged at the maximum duty ratio DMAX and the ideal duty ratio D, the charging time satisfies the following relation:
t 2 -t MAP ＝m*(t 3 -t MAX ) (3-5)
where m is an empirical coefficient based on the relationship between the desired duty cycle D and the maximum duty cycle DMAX.
(C) And substituting the first pressure value, the first inflation time, the first training data and the second training data into the pressure value analysis model to obtain a target pressure value. In one embodiment, the maximum inflation pressure estimate FMAX, i.e., the target pressure value, is determined by equations (3-1) through (3-5).
In one embodiment, when the current inflation rate is detected to deviate from the target inflation rate, the duty ratio of the analog control device is adjusted, and the working voltage of the inflation pump is adjusted, so that the inflation pump performs inflation operation at the target inflation rate. The analog control device can adjust voltage and current by adjusting the duty ratio of a Pulse Width Modulation (PWM), and in one embodiment, after an ideal duty ratio is set, the current inflation rate deviates from a target inflation rate due to the binding mode, air leakage and the like of the blood pressure measuring instrument, so that the inflation rate of an inflator of the blood pressure measuring instrument is kept consistent by fine-adjusting the duty ratio in real time through the PWM.
In order to facilitate understanding of the control method of the blood pressure measuring instrument provided in the above embodiment, an application example of the control method of the blood pressure measuring instrument is provided in the embodiment of the present invention, referring to a flow chart of another control method of the blood pressure measuring instrument shown in fig. 3, the method mainly includes the following steps S302 to S314:
step S302, pulse wave signals and current pressure values are collected. In one embodiment, characteristics such as a wrist circumference, a pulse wave intensity, a PPG signal quality, a heart rate, a target inflation rate, and an inflation duration when the cuff is inflated to a pressure threshold need to be acquired, and an intelligent inflation scheme (that is, a target inflation rate and a target pressure value are determined) is formulated for different individuals performing blood pressure measurement.
In step S304, the inflation is performed at the maximum inflation rate before the pressure threshold is reached. The maximum inflation rate is the inflation rate of an inflator pump in the blood pressure measuring instrument when the duty ratio is set to be 100%, and the pressure threshold is a preset threshold.
And S306, calculating the duty ratio through a K-nearest neighbor regression algorithm according to the pulse wave signal and the pressure curve characteristic of the current pressure value before the current pressure value reaches the pressure threshold value, and obtaining the target inflation rate. In one embodiment, the optimal duty ratio is calculated for different individuals through a pulse wave analysis model and a K-nearest neighbor regression algorithm by combining characteristics of the wrist circumference, the pulse wave intensity, the PPG signal quality, the heart rate, the target inflation rate, the inflation time when the blood pressure measuring instrument is inflated to the pressure threshold value and the like, the target inflation rate is determined according to the optimal duty ratio, and the target pressure value is calculated through a pressure value analysis model.
And S308, adjusting the duty ratio in real time according to the pulse width air conditioning system, enabling the inflator pump to execute inflation operation at a target inflation speed, and estimating a target pressure value according to the first pressure value, the first inflation time, the first training data and the second training data. The target pressure value is the maximum pressure value reached by inflation, the first training data is the second inflation time for performing inflation at the maximum inflation speed and the second pressure value corresponding to the second inflation time before the current pressure value reaches the pressure threshold value, and the second training data is the third inflation time and the third pressure value for reaching the average pressure predicted according to the fitting curve.
And S310, controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at a target inflation rate until the current pressure value reaches a target pressure value, and controlling the inflator pump to perform deflation operation. In one embodiment, the analog control device can adjust the voltage and the current by adjusting the duty ratio of the pulse width modulation technology, and after the ideal duty ratio is set, the current inflation rate deviates from the target inflation rate due to the binding mode, air leakage and the like of the blood pressure measuring instrument, so that the inflation rate of an inflator of the blood pressure measuring instrument is kept consistent by fine-tuning the duty ratio in real time through PWM.
In summary, the invention can improve the accuracy of blood pressure measurement and improve the user experience by intelligently adjusting the target inflation rate and the target pressure value.
With regard to the control method of the blood pressure measuring instrument provided by the foregoing embodiment, an embodiment of the present invention provides a control device of the blood pressure measuring instrument, which is applied to a processor of the blood pressure measuring instrument, and referring to a schematic structural diagram of the control device of the blood pressure measuring instrument shown in fig. 4, the control device of the blood pressure measuring instrument includes the following components:
a signal acquisition module 402, which acquires a pulse wave signal of a target object and a current pressure value in a cuff of a blood pressure measuring instrument;
the signal analysis module 404 is configured to analyze and process the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object;
and the control measurement module 406 controls an inflator pump of the blood pressure measuring instrument to perform inflation operation at the target inflation rate until the current pressure value reaches the target pressure value, and controls the inflator pump to perform deflation operation.
The above-mentioned data processing apparatus that this application embodiment provided can confirm inflated maximum pressure value and optimum duty cycle, maximum pressure value and inflation rate can't with individual assorted problem when solving the inflatable measurement, combine the PPG sensor, according to the wrist circumference, pulse wave intensity, PPG signal quality, the heart rate, target inflation rate and aerify to characteristics such as the length of time of inflating when the pressure threshold value, through K neighbour regression algorithm, to different individuals, calculate the optimal duty cycle, and calculate the interior pressure of sleeve area in real time, according to PWM developments fine setting duty cycle, realize inflating at the uniform velocity with ideal inflation rate, reduce measuring time, improve and measure the travelling comfort.
In one embodiment, before performing the step of analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object, the signal analysis module 404 is further configured to: and controlling the inflator to perform the inflation operation at the maximum inflation rate before the current pressure value reaches the preset pressure threshold.
In one embodiment, the signal analysis model comprises: when the step of analyzing the pulse wave signal and the current pressure value by using the pre-established signal analysis model to obtain the target inflation rate and the target pressure value corresponding to the target object is performed, the pulse wave analysis model and the pressure value analysis model 404 are further configured to: analyzing and calculating a pre-established training library, a pulse wave signal and a current pressure value by using a pulse wave analysis model to obtain a target inflation rate; acquiring a first pressure value and a first inflation time when inflation is carried out at a target inflation rate; and substituting the first pressure value and the first inflation time into the pressure value analysis model to obtain a target pressure value.
In one embodiment, when performing the step of analyzing and calculating the pre-established training library, the pulse wave signal and the current pressure value by using the pulse wave analysis model to obtain the target inflation rate, the signal analysis module 404 is further configured to: acquiring a feature set from a training library; calculating the Euclidean distance by using the feature set, the pulse wave signal and the current pressure value; and determining the duty ratio corresponding to the minimum Euclidean distance as an ideal duty ratio, wherein the ideal duty ratio corresponds to the target inflation rate of the inflator.
In one embodiment, before the step of substituting the first pressure value and the first inflation time into the pressure value analysis model, the signal analysis module 404 is further configured to: acquiring first training data, wherein the first training data is second inflation time for inflating at the maximum inflation rate and a second pressure value corresponding to the second inflation time before the current pressure value reaches a pressure threshold; and establishing a fitting curve by using the second inflation time and the second pressure value to obtain second training data, wherein the second training data is a third inflation time and a third pressure value which are predicted according to the fitting curve and reach the average pressure.
In one embodiment, the signal analysis module 404 is further configured to: and substituting the first pressure value, the first inflation time, the first training data and the second training data into the pressure value analysis model to obtain a target pressure value.
In one embodiment, when the step of controlling the inflator of the blood pressure measuring device to perform the inflation operation at the target inflation rate is performed, the control measurement module 406 is further configured to: when the current inflation rate deviates from the target inflation rate, the duty ratio of the analog control device is adjusted, and the working voltage of the inflator pump is adjusted, so that the inflator pump executes inflation operation at the target inflation rate.
The device provided by the embodiment of the present invention has the same implementation principle and technical effect as the method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the method embodiments without reference to the device embodiments.
The embodiment of the invention provides electronic equipment, which particularly comprises a processor and a storage device, wherein the processor is used for processing a plurality of data files; the storage means has stored thereon a computer program which, when executed by the processor, performs the method of any of the above described embodiments.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, where the electronic device 100 includes: the system comprises a processor 50, a memory 51, a bus 52 and a communication interface 53, wherein the processor 50, the communication interface 53 and the memory 51 are connected through the bus 52; the processor 50 is arranged to execute executable modules, such as computer programs, stored in the memory 51.
The Memory 51 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 53 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
The bus 52 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 5, but this does not indicate only one bus or one type of bus.
The memory 51 is used for storing a program, the processor 50 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 50, or implemented by the processor 50.
The processor 50 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 50. The Processor 50 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 51, and the processor 50 reads the information in the memory 51 and completes the steps of the method in combination with the hardware thereof.
The computer program product of the readable storage medium provided in the embodiment of the present invention includes a computer readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the foregoing method embodiment, which is not described herein again.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the following descriptions are only illustrative and not restrictive, and that the scope of the present invention is not limited to the above embodiments: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the scope of the disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for controlling a blood pressure measuring instrument, the method being applied to a processor of the blood pressure measuring instrument, the method comprising:
acquiring a pulse wave signal of a target object and a current pressure value in a cuff of the blood pressure measuring instrument;
analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object;
and controlling an inflator pump of the blood pressure measuring instrument to perform inflation operation at the target inflation rate until the current pressure value reaches the target pressure value, and controlling the inflator pump to perform deflation operation.
2. The method of claim 1, wherein before the step of analyzing and processing the pulse wave signal and the current pressure value by using the pre-established signal analysis model to obtain the target inflation rate and the target pressure value corresponding to the target object, the method comprises:
and controlling the inflator pump to perform inflation operation at the maximum inflation rate before the current pressure value reaches a preset pressure threshold value.
3. The method of claim 1, wherein the signal analysis model comprises: the step of analyzing and processing the pulse wave signal and the current pressure value by using a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object comprises the following steps:
analyzing and calculating a pre-established training library, the pulse wave signals and the current pressure value by using the pulse wave analysis model to obtain the target inflation rate;
acquiring a first pressure value and a first inflation time when inflation is carried out at the target inflation speed;
and substituting the first pressure value and the first inflation time into the pressure value analysis model to obtain the target pressure value.
4. The method according to claim 3, wherein the step of analyzing and calculating the pre-established training library, the pulse wave signal and the current pressure value by using the pulse wave analysis model to obtain the target inflation rate comprises:
acquiring a feature set from the training library;
calculating Euclidean distance by using the feature set, the pulse wave signals and the current pressure value;
and determining the duty ratio corresponding to the minimum Euclidean distance as an ideal duty ratio, wherein the ideal duty ratio corresponds to the target inflation rate of the inflator.
5. The method of claim 3, wherein the step of substituting the first pressure value and the first inflation time into the pressure value analysis model is preceded by:
acquiring first training data, wherein the first training data are second inflation time for inflating at a maximum inflation rate and a second pressure value corresponding to the second inflation time before a current pressure value reaches a pressure threshold;
and establishing a fitting curve by using the second inflation time and the second pressure value to obtain second training data, wherein the second training data are a third inflation time and a third pressure value which are predicted according to the fitting curve and reach the average pressure.
6. The method of claim 5, wherein the method comprises:
and substituting the first pressure value, the first inflation time, the first training data and the second training data into a pressure value analysis model to obtain the target pressure value.
7. The method of claim 1, wherein the step of controlling an inflator of the blood pressure meter to perform an inflation operation at the target inflation rate comprises:
when the current inflation rate deviates from the target inflation rate, the duty ratio of the analog control device is adjusted, and the working voltage of the inflator pump is adjusted, so that the inflator pump performs inflation operation at the target inflation rate.
8. A control device of a blood pressure measuring instrument, characterized in that the device is applied to a processor of the blood pressure measuring instrument, the device comprising:
the signal acquisition module is used for acquiring a pulse wave signal of a target object and a current pressure value in a cuff of the blood pressure measuring instrument;
the signal analysis module is used for analyzing and processing the pulse wave signal and the current pressure value by utilizing a pre-established signal analysis model to obtain a target inflation rate and a target pressure value corresponding to the target object;
and the control measurement module is used for controlling an inflator pump of the blood pressure measuring instrument to execute inflation operation at the target inflation rate until the current pressure value reaches the target pressure value, and controlling the inflator pump to execute deflation operation.
9. A server comprising a processor and a memory, the memory storing computer-executable instructions executable by the processor, the processor executing the computer-executable instructions to implement the method of any one of claims 1 to 7.
10. A computer-readable storage medium having computer-executable instructions stored thereon which, when invoked and executed by a processor, cause the processor to implement the method of any of claims 1 to 7.
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| CN117390513A (en) * | 2023-10-26 | 2024-01-12 | 中科元医智能(深圳)有限公司 | Method, device and electronic equipment for constructing AI-based blood pressure calculation model |
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