CN110141198A - A kind of simple blood pressure monitor and monitoring method - Google Patents
A kind of simple blood pressure monitor and monitoring method Download PDFInfo
- Publication number
- CN110141198A CN110141198A CN201910522073.XA CN201910522073A CN110141198A CN 110141198 A CN110141198 A CN 110141198A CN 201910522073 A CN201910522073 A CN 201910522073A CN 110141198 A CN110141198 A CN 110141198A
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- CN
- China
- Prior art keywords
- pulse wave
- blood pressure
- blood
- max30102
- mkb0706
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- 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
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- 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
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
- A61B5/02125—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave propagation time
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
Abstract
The present invention discloses a kind of simple blood pressure monitor and monitoring method, including data acquisition module and single chip processing module；The data acquisition module includes MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor, and the single chip processing module mainly completes the acquisition, processing and display of data；The single chip processing module is by initializing MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor and acquiring electrocardiosignal and pulse wave signal, pulse wave translation time is calculated by carrying out processing to signal, the blood pressure algorithm based on pulse wave translation time calculates pressure value and is shown in single-chip microcontroller screen.The present invention has widened the application range of monitor, and monitoring result is true and reliable, precision is higher.
Description
Technical field
The invention belongs to monitoring of blood pressure technical fields, and in particular to a kind of improved portable blood pressure monitor.
Background technique
Current blood pressure measuring method has stethoscopy, oscillographic method and directlys adopt pressure or shock sensor.Stethoscopy
That systolic pressure, diastolic pressure are differentiated by listening Ke's formula sound, reading by the mood of doctor, hearing, ambient noise, measured it is tight
Etc. series of factors influence, be easily introduced subjective error, have biggish contingency.Current electronic sphygmomanometer, which uses, to be shown
Wave method differentiates blood pressure by establishing the relationship of systolic pressure, diastolic pressure, mean pressure and cuff pressure Sasser.Based on both
The blood pressure measurement of method is required to cuff inflation, thus is not easy to carry out long-term continuous blood pressure monitoring；For using pressure or
Although the measurement method of shock sensor or ordinary electrocardiogram sensor may be implemented long-continued monitoring of blood pressure, but because
It is easily protected from environmental so it is difficult to ensure that certain accuracy, can not adaptively be surveyed simultaneously for different crowds
Amount, therefore it is difficult to ensure that the variation in crowd and other factors guarantees the accuracy measured.
Summary of the invention
Goal of the invention: the present invention provides a kind of simple blood pressure monitor and monitoring method, and that has widened monitor applies model
It encloses, monitoring result is true and reliable, precision is higher.
Summary of the invention: a kind of simple blood pressure monitor of the present invention, including data acquisition module and single-chip microcontroller processing
Module；The data acquisition module includes MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor, the single-chip microcontroller
Processing module mainly completes the acquisition, processing and display of data；The single chip processing module passes through to MKB0706 electrocardiogram
Sensor and MAX30102 pulse wave sensor initialize and acquire electrocardiosignal and pulse wave signal, to signal
Reason calculates pulse wave translation time, and the blood pressure algorithm based on pulse wave translation time calculates pressure value and is shown in single-chip microcontroller
Screen.
A kind of simple monitoring of blood pressure method of the present invention, comprising the following steps:
(1) MBK0706 electrocardiography transducer is initialized；
(2) MAX30102 pulse wave sensor is initialized；
(3) MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor data are read using single-chip microcontroller；
(4) blood pressure algorithm is based on using acquisition data calculate blood pressure；
(5) pressure value being calculated is done into comparison progress validation verification with having value；
(6) by satisfactory as the result is shown on single-chip microcontroller screen.
Calculating blood pressure process described in step (4) is as follows:
According to pulse wave velocity and by vessel wall thickness, vessel diameter, blood vessel elasticity modulus and haemoconcentration etc. at one
Fixed relationship:
Wherein, E=E0erBP, with BP exponential relationship, E0It is the elasticity modulus under blood vessel no pressure, BP is the abbreviation of blood pressure, r
It is blood vessel characteristic quantity, ρ is blood viscosity,KIt is Roger Moens constant, D is vessel diameter, and h is blood vessel thickness；
Assuming that pulse transit distance is L, then the relationship of velocity of wave PWV and Pulse transit time PTT can indicate are as follows:
DBP=[- 2/ (r*PTT)] * dPTT
The variable quantity of blood pressure is directly proportional to PTT variable quantity, then
BP=a*PTT+b
Wherein, a and b is coefficient to be measured, and specific pressure value can be obtained according to above formula.
The utility model has the advantages that compared with prior art, beneficial effects of the present invention: 1, using MKB0706 electrocardiography transducer compared with
AD8232 electrocardiography transducer can be realized Automatic-falling detection, the no data that falls off output, and automatic skin color model is further widened
The application range of monitor increases the reality of device so that the device uses different Optimal Parameters for different crowds
The property used；2, higher compared with AD8232 electrocardiography transducer the data obtained precision using MKB0706 electrocardiography transducer, guaranteeing continuously
True and reliable, high accuracy data is obtained in the case where blood pressure measurement；3, using MKB0706 electrocardiography transducer compared with AD8232 electrocardio
Map sensor is hardware design and structure arrangement, reduces the requirement to complete machine and software debugging；4, using digital filtering
Algorithm filters out the clutter in acquisition signal, eliminates Hz noise using quick 4 moving average filters, is disappeared using median filtering
Except baseline drift, algorithm above processing can guarantee even if the device under big noise circumstance it is also ensured that having enough essences
Degree makes the device have the broader scope of application.
Detailed description of the invention
Fig. 1 is a kind of simple monitoring of blood pressure method flow diagram.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The present invention provides a kind of improved portable blood pressure monitor, including data acquisition module and single-chip microcontroller handle mould
Block；Wherein data acquisition module is mainly made of MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor, single-chip microcontroller
Module mainly completes the acquisition, processing and display of data.First single-chip microcontroller by MKB0706 electrocardiography transducer and
MAX30102 pulse wave sensor initializes and acquires electrocardiosignal and pulse wave signal, is calculated by carrying out processing to signal
Pulse wave translation time, the blood pressure algorithm for being then based on pulse wave translation time calculate pressure value and are shown in single-chip microcontroller screen
Curtain.Monitor acquires the original letter of human body electrocardio by using MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor
Number and photoplethysmographic original signal, collected initial data is calculated into blood pressure data through STM32 microprocessor, count
The blood pressure data calculated, which is shown on screen, reads pressure value for tester.
As shown in Figure 1, the present invention provides a kind of simple monitoring of blood pressure method, the specific steps are as follows:
S1: MBK0706 electrocardiography transducer is initialized；
S2: initialization MAX30102 pulse wave sensor；
S3: MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor data are read using single-chip microcontroller；
S4: blood pressure is calculated using acquisition data based on blood pressure algorithm, steps are as follows for calculating:
According to pulse wave velocity and by vessel wall thickness, vessel diameter, blood vessel elasticity modulus and haemoconcentration etc. at one
Fixed relationship, the relational expression are (1):
Wherein, E=E0erBP, with BP exponential relationship, E0It is the elasticity modulus under blood vessel no pressure, BP is the abbreviation of blood pressure, r
It is blood vessel characteristic quantity, ρ is blood viscosity,KIt is Roger Moens constant, D is vessel diameter, and h is blood vessel thickness.
Assuming that pulse transit distance is L, then the relationship of velocity of wave PWV and Pulse transit time PTT can indicate are as follows:
Simultaneous expression formula (1) and (2) can obtain:
It is obtained to expression formula (3) both members derivation:
DBP=[- 2/ (r*PTT)] * dPTT (4)
It can be obtained by expression formula (4), the variable quantity of blood pressure is directly proportional to PTT variable quantity.
Then expression formula (4) can be rewritten as:
BP=a*PTT+b (5)
Wherein, a and b is coefficient to be measured, and specific pressure value can be obtained according to above formula.
S5: the pressure value being calculated is done into comparison progress validation verification with having value；
S6: by satisfactory as the result is shown on single-chip microcontroller screen.
Claims (3)
1. a kind of simple blood pressure monitor, which is characterized in that including data acquisition module and single chip processing module；The data
Acquisition module includes MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor, and the single chip processing module is main
Complete acquisition, processing and the display of data；The single chip processing module by MKB0706 electrocardiography transducer and
MAX30102 pulse wave sensor initializes and acquires electrocardiosignal and pulse wave signal, filters out acquisition using digital filtering algorithm
Clutter in signal eliminates Hz noise using quick 4 moving average filters, eliminates baseline drift using median filtering,
Pulse wave translation time is calculated by carrying out second differnce threshold process to signal, the blood pressure based on pulse wave translation time is calculated
Method calculates pressure value and is shown in single-chip microcontroller screen.
2. a kind of simple monitoring of blood pressure method, which comprises the following steps:
(1) MBK0706 electrocardiography transducer is initialized；
(2) MAX30102 pulse wave sensor is initialized；
(3) MKB0706 electrocardiography transducer and MAX30102 pulse wave sensor data are read using single-chip microcontroller；
(4) blood pressure algorithm is based on using acquisition data calculate blood pressure；
(5) pressure value being calculated is done into comparison progress validation verification with having value；
(6) by satisfactory as the result is shown on single-chip microcontroller screen.
3. a kind of simple monitoring of blood pressure method according to claim 2, which is characterized in that calculating blood described in step (4)
It is as follows to press through journey:
According to pulse wave velocity and by vessel wall thickness, vessel diameter, blood vessel elasticity modulus and haemoconcentration etc. at certain
Relationship:
Wherein, E=E0erBP, with BP exponential relationship, E0It is the elasticity modulus under blood vessel no pressure, BP is the abbreviation of blood pressure, and r is blood
Pipe characteristic quantity, ρ are blood viscosities,KIt is Roger Moens constant, D is vessel diameter, and h is blood vessel thickness；
Assuming that pulse transit distance is L, then the relationship of velocity of wave PWV and Pulse transit time PTT can indicate are as follows:
DBP=[- 2/ (r*PTT)] * dPTT
The variable quantity of blood pressure is directly proportional to PTT variable quantity, then
BP=a*PTT+b
Wherein, a and b is coefficient to be measured, and specific pressure value can be obtained according to above formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910522073.XA CN110141198A (en) | 2019-06-17 | 2019-06-17 | A kind of simple blood pressure monitor and monitoring method |
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| CN201910522073.XA CN110141198A (en) | 2019-06-17 | 2019-06-17 | A kind of simple blood pressure monitor and monitoring method |
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| CN110141198A true CN110141198A (en) | 2019-08-20 |
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Citations (6)
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|---|---|---|---|---|
| CN102008296A (en) * | 2010-12-24 | 2011-04-13 | 吉林大学 | Device and method for measuring arterial blood pressures based on pulse wave signals and electrocardiosignals |
| CN105748051A (en) * | 2016-02-18 | 2016-07-13 | 京东方科技集团股份有限公司 | Blood pressure measuring method and device |
| CN107239684A (en) * | 2017-05-22 | 2017-10-10 | 吉林大学 | A kind of feature learning method and system for ECG identifications |
| CN108354597A (en) * | 2018-01-31 | 2018-08-03 | 南京邮电大学 | A kind of rapid blood pressure computational methods based on the extraction of optimal wave |
| CN108537100A (en) * | 2017-11-17 | 2018-09-14 | 吉林大学 | A kind of electrocardiosignal personal identification method and system based on PCA and LDA analyses |
| CN108720821A (en) * | 2018-05-28 | 2018-11-02 | 京东方科技集团股份有限公司 | A kind of blood pressure estimation device and blood pressure estimating system |
-
2019
- 2019-06-17 CN CN201910522073.XA patent/CN110141198A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN102008296A (en) * | 2010-12-24 | 2011-04-13 | 吉林大学 | Device and method for measuring arterial blood pressures based on pulse wave signals and electrocardiosignals |
| CN105748051A (en) * | 2016-02-18 | 2016-07-13 | 京东方科技集团股份有限公司 | Blood pressure measuring method and device |
| CN107239684A (en) * | 2017-05-22 | 2017-10-10 | 吉林大学 | A kind of feature learning method and system for ECG identifications |
| CN108537100A (en) * | 2017-11-17 | 2018-09-14 | 吉林大学 | A kind of electrocardiosignal personal identification method and system based on PCA and LDA analyses |
| CN108354597A (en) * | 2018-01-31 | 2018-08-03 | 南京邮电大学 | A kind of rapid blood pressure computational methods based on the extraction of optimal wave |
| CN108720821A (en) * | 2018-05-28 | 2018-11-02 | 京东方科技集团股份有限公司 | A kind of blood pressure estimation device and blood pressure estimating system |
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| 于潇，等: "基于窄带物联网的心血管信息监测系统", 《技术与市场》 * |
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Application publication date: 20190820 |