CN104434051A - Portable finger pulse signal acquisition device - Google Patents
Portable finger pulse signal acquisition device Download PDFInfo
- Publication number
- CN104434051A CN104434051A CN201410667666.2A CN201410667666A CN104434051A CN 104434051 A CN104434051 A CN 104434051A CN 201410667666 A CN201410667666 A CN 201410667666A CN 104434051 A CN104434051 A CN 104434051A
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- China
- Prior art keywords
- signal
- module
- acquisition device
- pulse signal
- finger pulse
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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
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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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
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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
- A61B5/72—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 invention discloses a portable finger pulse signal acquisition device. The portable finger pulse signal acquisition device comprises an acquisition unit, a signal processing and power supply unit and an LED display unit. The acquisition unit is connected with the LED display unit through the signal processing and power supply unit. The acquisition unit comprises a photodiode and a phototriode. The common terminal where the positive electrode of the photodiode is connected with the collector of the phototriode is connected with power voltages. The common terminal where the negative electrode of the photodiode is connected with the emitter of the phototriode is grounded. The collector of the phototriode is further connected with the signal processing and power supply unit through a capacitor. The signal processing and power supply unit comprises an amplification filtering module, a signal shaping module and a power module. The amplification filtering module and the signal shaping module are connected with the power module, and the power module supplies power to the amplification filtering module and the signal shaping module.
Description
Technical field
The present invention relates to electronic equipments technical field, particularly, relate to a kind of portable finger pulse signal acquisition device.
Background technology
Pulse is caused by heartbeat, reaches the radial artery place of far-end through tremulous pulse and blood flow, and it carries abundant human health status information, and the uniqueness just becoming the traditional Chinese medical science as far back as B.C. 7th century pulse-taking is diagnosed a disease method.
But the diagnostic method of traditional Chinese medical science uniqueness and the curative effect of curing the disease always shroud the veil of one deck mystery since ancient times, the traditional Chinese medical science is that armrest refers to obtain pulse information always, there is many factors that gets sth into one's head unavoidably in this, moreover the skill of this finger feeling the pulse is difficult to grasp, and therefore people urgently expect to realize the scientific of pulse-taking and modernization as early as possible.Along with the development of sensor technology and computer processing technology, people wish modern technologies to be applied to Chinese medicine pulse diagnosis, so that nature and feature that is more scientific, that disclose pulse condition more objectively.On the other hand from the angle of doctor trained in Western medicine, people also attempt the pathological changes carrying out Evaluation and Diagnosis cardiovascular system of human body according to the variability of pulse wave in recent years, can find the method for an early stage non-invasive diagnosis of effective cardiovascular disease.
At present, existing monitoring of pulse system is deposited and can only be carried out single-point monitoring to pulse in use, and interfering signal is larger, the easy distortion of measurement result, equipment volume is comparatively large, carries the problems such as inconvenient,, also there is complicated operation in most of monitoring of pulse system, is only suitable for the problems such as professional's use.
Summary of the invention
The technical problem that the pulse collection existed in prior art is inaccurate in order to solve, harvester carries inconvenience, the present invention proposes a kind of portable finger pulse signal acquisition device.
According to portable finger pulse signal acquisition device of the present invention, comprising:
Collecting unit, signal processing and power supply unit, LED display unit, described collecting unit is connected with described LED display unit by described signal processing and power supply unit;
Described collecting unit comprises photodiode and phototriode, the public termination supply voltage that described photodiode positive pole is connected with described phototriode pipe collector;
The common end grounding that described photodiode negative pole is connected with described phototriode emitter stage; The colelctor electrode of described phototriode is also connected with described signal processing and power supply unit by electric capacity;
Described signal processing and power supply unit comprise: amplification filtering module, signal shaping module, power module, described amplification filtering module, described signal shaping module are connected with described power module respectively, and described power module is described amplification filtering module, described signal shaping module for power supply;
The human finger pulse received change is converted into the change of optical signal by described collecting unit, more described optical signal is converted into the signal of telecommunication, and by described electric signal transmission to described amplification filtering module;
Described amplification filtering module carries out amplifying and filtering to the received signal, and will amplify with filtered Signal transmissions to described signal shaping module, and the Signal transmissions after shaping shows to described LED display unit by described signal shaping module;
Described amplification filtering module comprises signal amplification circuit and filter circuit, and described signal amplification circuit comprises: double operational integrated amplifier, high pass filter, and described double operational integrated amplifier is connected with described high pass filter;
Described signal shaping module is integrated voltage comparator.
Portable finger pulse signal acquisition device of the present invention, structure is simple, volume is little, be easy to carry and circuit design is reasonable, and input cost is low, install lay easy.Simple and the easy-to-connect of circuit, with simple to operate and intelligence degree is high, result of use is good, in actual use procedure, can deal with daily household demand, because this device need be carried with, therefore power acquisition button cell or lithium battery etc., practical value is high, applied widely and popularizing application prospect is extensive, user under the prerequisite not affecting work, study and motion, can understand the health status of self quickly and easily.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from description, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write description, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the apparatus structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
The technical problem that the pulse collection existed in prior art is inaccurate in order to solve, harvester carries inconvenience, the present invention proposes a kind of portable finger pulse signal acquisition device.
As shown in Figure 1, portable finger pulse signal acquisition device of the present invention, comprising:
Collecting unit 10, signal processing and power supply unit 20, LED display unit 30, described collecting unit 10 is connected with described LED display unit 30 by described signal processing and power supply unit 20;
Described signal processing and power supply unit 20 comprise: amplification filtering module 201, signal shaping module 202, power module 203, described amplification filtering module 201, described signal shaping module 202 are connected with described power module 203 respectively, and described power module 203 is described amplification filtering module 201, described signal shaping module 202 is powered.Power module 203 is installed on circuit board top, and described power module 203 is lithium battery, aneroid battery or button cell etc.Signal processing and power supply unit 20 carry out amplification filtering and waveform shaping process for the signal come collecting unit 10 collection, and utilize power module 203 to power to each module.
As shown in Figure 2, described collecting unit 10 comprises photodiode and phototriode, the public termination supply voltage that described photodiode positive pole is connected with described phototriode pipe collector; The common end grounding that described photodiode negative pole is connected with described phototriode emitter stage; The colelctor electrode of described phototriode is also connected with described signal processing and power supply unit 20 by electric capacity.
Described collecting unit 10 is made up of photoelectric sensor, and the human finger pulse received change is converted into the change of optical signal by described collecting unit 10, more described optical signal is converted into the signal of telecommunication, and by described electric signal transmission to described amplification filtering module.Described photoelectric sensor is made up of light source, optical path, photoelectric cell, and photoelectric sensor adopts TCRT5000 photoelectric sensor, in order to improve the accuracy of image data, reduces the impact that error in data brings, and transmit-receive tube adopts symmetrical placement.
Photoelectric sensor spectrum reflective object exists on another object, and operation wavelength is approximately 950 millimeters, under the irradiation of the light source of constant wavelength, by detect through finger light intensity can indirect inspection to the pulse signal of human body.Described photoelectric sensor receives the transillumination by human finger, by the time relationship of the described transillumination reflection human body rhythm of the heart.
Described amplification filtering module 201 carries out amplifying and filtering to the received signal, and will amplify with filtered Signal transmissions to described signal shaping module 202, the Signal transmissions after shaping shows to described LED display unit 203 by described signal shaping module 202.
Described amplification filtering module 201 comprises signal amplification circuit and filter circuit, can suppress spatial electromagnetic interfering signal, the interfering signal of body temperature generation and the power frequency interference signals of 50Hz.Described signal amplification circuit comprises: double operational integrated amplifier, high pass filter, and described double operational integrated amplifier is connected with described high pass filter; Described signal shaping module 202 is integrated voltage comparator.
Described double operational integrated amplifier is NE5532 double operational integrated amplifier, and described integrated voltage comparator is LM393 integrated voltage comparator, and the output serial ports of this device can be connected to mobile client or other-end equipment.
This device exports and adopts high pass filter, filtering direct current signal, low-pass filtering is amplified the negative feedback of employing amplifier and is realized, adopt NE5532 double operational high-performance low-noise operational amplifier, most standard of comparing operational amplifier, it demonstrates better noiseproof feature, improves and exports driving force and power supply bandwidth.Two-stage bandpass filter level is associated in double operational, effectively reduces design volume and cost.
Considering that human pulse wave frequency is about 0.5-2Hz, in order to effectively gather the signal of pulse wave, the lower-cut-off frequency of signal amplification circuit must be set to 0.5-1Hz.So just effectively can suppress the interfering signal lower than 0.5Hz, the interference produced as human body shake and thermal noise interference etc.Described filter circuit comprises low pass filter and band elimination filter; Described filter circuit allows the low frequency in the described signal of telecommunication or DC component to pass through, and suppresses high fdrequency component to be passed through; Described low pass filter is second-order low-pass filter.
LED display unit 30 of the present invention adopts the LED energy-saving circuit of most simple and stable, and pulse signal display lamp is quick on the draw, along with signal light on and off, and reaction signal amplitude, Changing Pattern, visual Diagnosis pulse reaction pathological changes.
This device also comprises: signals collecting clamp apparatus, and described signals collecting clamp apparatus is arranged on the seam of described signal processing and power supply unit 20.Adopt clip to fix with the stickiness of human body skin good, thus pulse signal is more easily transmitted, the distortion factor reduces.This device have employed closed collection measure simultaneously, adopts the periphery protection of lucifuge interference, thus makes measurement result more accurate.
This crust of the device is cube shaped, and adopt papery material, after warrantor contacts with device, can not produce harmful effect to human body skin, cutting is attractive in appearance, and design is light and handy, adopts clip fixed finger, is convenient for carrying, and has good fixing and capacity of resisting disturbance.
The workflow of portable finger pulse signal acquisition device of the present invention is as follows: user uses portable finger pulse signal acquisition device to clamp finger tips, and after opening power, system brings into operation.LED shows the relevant information of the pulse waves such as user's pulse intensity, speed in real time, allows user under the prerequisite not affecting work, study and motion, can understand the health status of self quickly and easily.
Portable finger pulse signal acquisition device of the present invention, structure is simple, volume is little, be easy to carry and circuit design is reasonable, and input cost is low, install lay easy.Simple and the easy-to-connect of circuit, with simple to operate and intelligence degree is high, result of use is good, in actual use procedure, can deal with daily household demand, because this device need be carried with, therefore power acquisition button cell or lithium battery etc., practical value is high, applied widely and popularizing application prospect is extensive, user under the prerequisite not affecting work, study and motion, can understand the health status of self quickly and easily.
The present invention can have multiple multi-form detailed description of the invention; above with Fig. 1-Fig. 2 accompanying drawing in conjunction with technical scheme of the present invention explanation for example; this does not also mean that the instantiation that the present invention applies can only be confined in specific flow process or example structure; those of ordinary skill in the art should understand; specific embodiments provided above is some examples in multiple its preferred usage, and the embodiment of any embodiment the claims in the present invention all should within technical solution of the present invention scope required for protection.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a portable finger pulse signal acquisition device, is characterized in that, comprising:
Collecting unit, signal processing and power supply unit, LED display unit, described collecting unit is connected with described LED display unit by described signal processing and power supply unit;
Described collecting unit comprises photodiode and phototriode, the public termination supply voltage that described photodiode positive pole is connected with described phototriode pipe collector;
The common end grounding that described photodiode negative pole is connected with described phototriode emitter stage; The colelctor electrode of described phototriode is also connected with described signal processing and power supply unit by electric capacity;
Described signal processing and power supply unit comprise: amplification filtering module, signal shaping module, power module, described amplification filtering module, described signal shaping module are connected with described power module respectively, and described power module is described amplification filtering module, described signal shaping module for power supply;
The human finger pulse received change is converted into the change of optical signal by described collecting unit, more described optical signal is converted into the signal of telecommunication, and by described electric signal transmission to described amplification filtering module;
Described amplification filtering module carries out amplifying and filtering to the received signal, and will amplify with filtered Signal transmissions to described signal shaping module, and the Signal transmissions after shaping shows to described LED display unit by described signal shaping module;
Described amplification filtering module comprises signal amplification circuit and filter circuit, and described signal amplification circuit comprises: double operational integrated amplifier, high pass filter, and described double operational integrated amplifier is connected with described high pass filter;
Described signal shaping module is integrated voltage comparator.
2. portable finger pulse signal acquisition device according to claim 1, is characterized in that, described collecting unit is tcrt5000 photoelectric sensor;
Described photoelectric sensor comprises structure light-emitting lamp and detector, and described structure light-emitting lamp and described detector are arranged in the same direction;
The operation wavelength of described photoelectric sensor is 950 millimeters;
Described detector is made up of photoelectric crystal audion, and under the light source irradiation of constant wavelength, described photoelectric crystal audion is by detecting luminous intensity measurement through human finger to the pulse signal of human finger.
3. portable finger pulse signal acquisition device according to claim 1, it is characterized in that, described filter circuit comprises low pass filter and band elimination filter;
Described filter circuit allows the low frequency in the described signal of telecommunication or DC component to pass through, and suppresses high fdrequency component to be passed through;
Described low pass filter is second-order low-pass filter.
4. portable finger pulse signal acquisition device according to claim 1, is characterized in that, described power module is lithium battery, aneroid battery or button cell.
5. portable finger pulse signal acquisition device according to claim 1, is characterized in that, the lower-cut-off frequency of described signal amplification circuit is 0.5-1Hz, and described signal amplification circuit suppresses the interfering signal lower than 0.5Hz.
6. portable finger pulse signal acquisition device according to claim 1, is characterized in that, shell is cube shaped, and described shell adopts papery material.
7. portable finger pulse signal acquisition device according to claim 1, it is characterized in that, also comprise: signals collecting clamp apparatus, described signals collecting clamp apparatus is arranged on the seam of described signal processing and power supply unit.
8. portable finger pulse signal acquisition device according to claim 1, is characterized in that, described double operational integrated amplifier is NE5532 double operational integrated amplifier.
9. portable finger pulse signal acquisition device according to claim 1, is characterized in that, described integrated voltage comparator is LM393 integrated voltage comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410667666.2A CN104434051A (en) | 2014-11-20 | 2014-11-20 | Portable finger pulse signal acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410667666.2A CN104434051A (en) | 2014-11-20 | 2014-11-20 | Portable finger pulse signal acquisition device |
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| Publication Number | Publication Date |
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| CN104434051A true CN104434051A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410667666.2A Pending CN104434051A (en) | 2014-11-20 | 2014-11-20 | Portable finger pulse signal acquisition device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266773A (en) * | 2015-11-04 | 2016-01-27 | 上海箩箕技术有限公司 | Pulse wave sensor and wearable electronic device |
| CN107334464A (en) * | 2016-12-05 | 2017-11-10 | 深圳大学 | A kind of pulse meter based on the embedded nano thin-film photoelectric sensor of graphene edge |
-
2014
- 2014-11-20 CN CN201410667666.2A patent/CN104434051A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266773A (en) * | 2015-11-04 | 2016-01-27 | 上海箩箕技术有限公司 | Pulse wave sensor and wearable electronic device |
| CN107334464A (en) * | 2016-12-05 | 2017-11-10 | 深圳大学 | A kind of pulse meter based on the embedded nano thin-film photoelectric sensor of graphene edge |
| CN107334464B (en) * | 2016-12-05 | 2020-05-19 | 深圳大学 | Sphygmometer based on graphene edge embedded nano-film photoelectric sensor |
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Application publication date: 20150325 |
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