CN109008998A - Intelligent sphygmus signal detection system - Google Patents
Intelligent sphygmus signal detection system Download PDFInfo
- Publication number
- CN109008998A CN109008998A CN201810523299.7A CN201810523299A CN109008998A CN 109008998 A CN109008998 A CN 109008998A CN 201810523299 A CN201810523299 A CN 201810523299A CN 109008998 A CN109008998 A CN 109008998A
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- CN
- China
- Prior art keywords
- signal
- circuit
- pulse
- machine
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
Abstract
The present invention is made of pulse transducer (1), signal conditioning circuit (2), A/D converter circuit (3), single-chip microcontroller (4), PC machine (5).The pulse transducer (1) is used to measure human pulse；The signal processing circuit is used to amplify faint voltage signal, filtering clutter；A/D converter circuit (3) is used to signal conditioning circuit (3) surveyed analog signal being converted to digital signal；Single-chip microcontroller (4) carries out analog signal to the conversion of digital signal and setting sample frequency to control A/D converter to the voltage signal of input；PC machine (5) is used to that the data of acquisition are stored and played back.Structure of the invention is relatively simple, can completely detect human body artery situation, to reflect cardiovascular disease, and has strong anti-interference ability and error resilience performance, generally, system reliability is higher.
Description
Technical field:
The present invention relates to medical device detection fields, specifically Intelligent sphygmus signal detection system.
Background technique:
Today's society rhythm is fast, and pressure is big, cardiovascular and cerebrovascular diseases morbidity show become younger, diversified feature, serious prestige
Coerce human health.Cardiovascular index of correlation parameter currently is relied primarily on to the diagnosis of cardiovascular disease, and instrument and equipment is main
By X-ray, electrocardiogram, impedance diagram and ultrasonic artery figure.Relevant device principle, structure, precision are different, and applicable crowd is not yet
To the greatest extent just as.Feeling the pulse is Chinese medicine conventional means, but relies primarily on doctor's subjective judgement, is carried out by experience, is promoting and is using upper office
It is sex-limited very big.It is combined feeling the pulse with current electronic equipment, using radial artery pulse wave figure method, designs pulse signal detection system
System, has there is more application, but is limited to pulse wave low frequency and the faint feature of amplitude, affected by noise very big, examines in signal
It surveys larger with the upper difficulty of processing.The present invention deals with device with single-chip microcontroller, easy to operate, price is lower, easy to use, can be maximum
The acquisition of solution pulse wave, the denoising, display problem of degree.
Summary of the invention:
For the shortcoming of existing pulse detection system, the present invention devises Intelligent sphygmus signal detection system.
The present invention is by pulse transducer (1), signal conditioning circuit (2), A/D converter circuit (3), single-chip microcontroller (4), PC machine (5)
Composition.The pulse transducer (1) is used to measure human pulse；The signal processing circuit is used to put faint voltage signal
Greatly, filtering clutter；A/D converter circuit (3) is used to signal conditioning circuit (3) surveyed analog signal being converted to digital signal；Monolithic
Machine (4) carries out analog signal to the conversion of digital signal and setting sampling to control A/D converter to the voltage signal of input
Frequency；PC machine (5) is used to that the data of acquisition are stored and played back.Pulse transducer (1) utilizes PVDF piezoelectric film material system
At, it can be by the pressure conversion of each superficial arteriopalmus at the electric signal for being easy to measure, range is between 0.1-0.6V.
What it is by sensor output is the lower pulse signal of frequency, therefore is easy disturbed, the power frequency including equipment itself
Interference signal caused by interference, muscle jitter etc..System is realized using hardware filtering circuit, by low pass circuit and high pass circuit
It is composed, bandwidth 0.2Hz-40Hz, as shown in Figure 3:
Single chip circuit is made of A/D converter circuit and MAX232 circuit, and major function is the analog-to-digital conversion of signal and the string of PC machine
Port communications.According to sampling thheorem, the pulse wave frequency rate of detection is 50Hz, and hardware sample frequency is selected as 150Hz.PC machine is used to will
The data of acquisition are stored and are played back.
Detailed description of the invention
Fig. 1 is the structure principle chart of the invention patent.
Fig. 2 is the internal circuit diagram of the invention patent.
Fig. 3 is the hardware filtering circuit figure of the invention patent.
Fig. 4 is the pin circuitry of the single-chip microcontroller of the invention patent.
Specific embodiment
The present invention is by pulse transducer (1), signal conditioning circuit (2), A/D converter circuit (3), single-chip microcontroller (4), PC machine (5)
Composition.The pulse transducer (1) is used to measure human pulse；The signal processing circuit (2) is used to believe faint voltage
Number amplification, filtering clutter；A/D converter circuit (3) is used to signal conditioning circuit (2) surveyed analog signal being converted to digital signal；
Single-chip microcontroller (4) carries out the conversion and setting of analog signal to digital signal to control A/D converter to the voltage signal of input
Sample frequency；PC machine (5) is used to that the data of acquisition are stored and played back.
Structure of the invention is relatively simple, can completely detect human body artery situation, to reflect cardiovascular disease, and has
There are stronger anti-interference ability and error resilience performance, generally, system reliability is higher.
Claims (1)
1. Intelligent sphygmus signal detection system, it is characterised in that it is pulse transducer (1), signal conditioning circuit (2), AD conversion
Circuit (3), single-chip microcontroller (4), PC machine (5) composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523299.7A CN109008998A (en) | 2018-05-28 | 2018-05-28 | Intelligent sphygmus signal detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523299.7A CN109008998A (en) | 2018-05-28 | 2018-05-28 | Intelligent sphygmus signal detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109008998A true CN109008998A (en) | 2018-12-18 |
Family
ID=64611661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810523299.7A Pending CN109008998A (en) | 2018-05-28 | 2018-05-28 | Intelligent sphygmus signal detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109008998A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010129513A3 (en) * | 2009-05-05 | 2011-02-17 | Robert Peter Blankfield | Evaluation of stroke volume differential as it relates to cardiovascular health |
| US20150087928A1 (en) * | 2013-09-21 | 2015-03-26 | Leo Technologies, Inc. | Measuring tissue volume with dynamic autoreconfiguration |
| CN104622438A (en) * | 2013-11-15 | 2015-05-20 | 成都闰世科技有限公司 | Signal amplification circuit for pulse detection device |
| CN105451646A (en) * | 2014-05-07 | 2016-03-30 | 皇家飞利浦有限公司 | Device, system and method for extracting physiological information |
| CN205433658U (en) * | 2015-12-30 | 2016-08-10 | 广东伊茗药业有限公司 | Human pulse detector |
-
2018
- 2018-05-28 CN CN201810523299.7A patent/CN109008998A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010129513A3 (en) * | 2009-05-05 | 2011-02-17 | Robert Peter Blankfield | Evaluation of stroke volume differential as it relates to cardiovascular health |
| US20150087928A1 (en) * | 2013-09-21 | 2015-03-26 | Leo Technologies, Inc. | Measuring tissue volume with dynamic autoreconfiguration |
| CN104622438A (en) * | 2013-11-15 | 2015-05-20 | 成都闰世科技有限公司 | Signal amplification circuit for pulse detection device |
| CN105451646A (en) * | 2014-05-07 | 2016-03-30 | 皇家飞利浦有限公司 | Device, system and method for extracting physiological information |
| CN205433658U (en) * | 2015-12-30 | 2016-08-10 | 广东伊茗药业有限公司 | Human pulse detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |