CN101999898B - Meridian point property information extraction system - Google Patents
Meridian point property information extraction system Download PDFInfo
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- CN101999898B CN101999898B CN201010539472A CN201010539472A CN101999898B CN 101999898 B CN101999898 B CN 101999898B CN 201010539472 A CN201010539472 A CN 201010539472A CN 201010539472 A CN201010539472 A CN 201010539472A CN 101999898 B CN101999898 B CN 101999898B
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Abstract
The invention discloses a meridian point property information extraction system, which comprises at least one measuring probe, a signal processing module, an anolog digital conversion module, a constant flow source module and a software control module; the measuring probe comprises two voltage measuring electrodes and two current electrodes, and the current electrodes in the measuring probe is connected with the constant flow source module; the voltage measuring electrodes in the measuring probe is connected with the anolog digital conversion module; the anolog digital conversion module is connected with the signal processing module, and the signal processing module is connected with the measuring probe, the constant flow source module and the anolog digital conversion module; the software control module comprises a microprocessor operating software in a computer software and the signal processing module, and is used for controlling the process of data acquisition and displaying the data output by the signal processing module. The system of the invention can measure a subcutaneous resistance; and the electrode position has little stimulation, and the system has the advantages of miniaturization, high sensitivity, high stability, low noise, and anti-interference.
Description
Technical field
The present invention relates to a kind of information extracting system, especially a kind of system that is used for the meridian point information retrieval.
Background technology
In recent years, show that for the electrometric big quantity research of various channel phenomena Chinese traditional meridians figure has and other position different characteristic, resistance value is one of key property.Carried out many-sided exploration both at home and abroad to the resistance value characteristic.
Proposed the method for skin four electrode methods mensuration meridians characteristics in domestic 1978, and made WQ-14A low-resistance meridians measuring instrument in 1978 according to this Haidian, principle Beijing electronic medical instruments factory.But obviously; Based on electronics development of computer over 30 years original instrument has been fallen behind, the instrument that is used for the meridians measurement has shortcomings such as the component volume is big, speed is slow, precision is low, and measuring method has also fallen behind; Can only spot measurement, no computer control and image data.Along with the deep discussion to the meridians problem, existing instrument can not satisfy the more various and strict requirement of present detection to channel and collateral information, collection, processing.
Abroad; The relevant acupuncture spot that the people such as Andrew C.Ahn of U.S. Harvard Medical School in 2008 deliver and the systematic review of meridians electrical characteristics; Summed up the groundwork of various countries to studying in this respect since 1975; Are important method wherein with four electrode methods wherein, to disclose 4 electrode arrangements are traditional arrangements to four electrode methods in the paper that Harvard University's medical college 2005 is delivered; Electrodes use 4 acupuncture needles, insert in the body; Electricity frequency 3.3KHz; Electrode current 10; 40,80 microamperes, adopted single input channel; Through computer data acquisition (list of references: Ahn AC, et al.2005.Electrical impedance alongconnective tissue planes associated with acupuncture meridians.BMC Complement Altern Med5:10.).Korean Patent also discloses a kind of Skin Resistance among a small circle 4 electrode measurement systems (referring to document: Woo-Young Jang etal.2004.Measurement System and Electrode for Measuring Skin Impedance in a Small Region of Skin.PatentApplication Publication.Pub.No.:US 2004/0122336A1; Pub.Date Jun.24; 2004); But electrode is shaped as the concentric ring-shaped electrode, the about 15mm of distance between two galvanic electrodes, employing constant current in this patent; To survey be Skin Resistance among a small circle; Detection is adopted single input channel, by computer data acquisition less than subcutaneous information; Australia's southern University of Wales disclosed document has also been studied four electrode methods (referring to document: Felix W S W et al.; 2010.J Altern ComplementMed 16 (3): 257-264), but 4 electrodes of disclosed method are conventional arrangement in the document, but do not provide the test electrode combination finished product of typing; Electricity frequency: 100KHz and 10-200KHz; Test function is accomplished (Fiuke RCLmeter, multiplexer, medical grade isolating converter) by 3 separate apparatus; Adopt 26 input channels, by computer control.
As far as possible little in order to accomplish electricity irritation, measuring current is little, and human body is very strong to the induction of the peripheral signal of telecommunication, thus very high to the requirement of circuit, must accomplish high sensitivity, high stability, capacity of resisting disturbance is strong, low noise.Also there is following shortcoming in the prior art:
1, the measured value reflection is skin resistance, or the subcutaneous resistance of reflection still stimulates bigger;
2, the suffered stimulation of electrode riding position is bigger, comprises (like the acupuncture) and electric (like electric current, voltage is excessive) of machinery;
3, acquisition of signal electrode packet size is excessive;
4, do not have high sensitivity, high stability, low noise, jamproof performance (human body can be responded to the various electromagnetic interference of surrounding enviroment, and anti-interference is a problem of difficulty).
Summary of the invention
In order to solve the problem that exists in the prior art, the invention provides a kind of meridian point feature extraction method and system, four electrode methods of employing are measured subcutaneous resistance, and the structure miniaturization of whole system, highly sensitive, low noise, anti-interference.
In order to realize the object of the invention, the technical scheme of employing is summarized as follows:
A kind of meridian point characteristic information extraction system is characterized in that, comprises at least one measuring probe, signal processing module, analog-to-digital conversion module, constant-current source module and software control module;
Said measuring probe comprises two voltage electrodes, two galvanic electrodes; Said two voltage electrodes and galvanic electrode are arranged according to first voltage electrode-first galvanic electrode-second voltage electrode and are fixed together, and the distance of second galvanic electrode and nearest voltage electrode is not less than 20 centimetres;
Galvanic electrode in the said measuring probe connects the constant-current source module, and the electric current of constant frequency is provided by the constant-current source module;
Voltage electrode in the said measuring probe connects analog-to-digital conversion module, and the conversion of signals that said analog-to-digital conversion module is measured measuring probe is a digital signal;
Said analog-to-digital conversion module connects signal processing module, and said signal processing module also connects measuring probe, constant-current source module, analog-to-digital conversion module;
Said software control module connects signal processing module, is used for the process of control data collection and the data show of signal processing module output is come out.
Said software control module is located on cell phone system or the computer, is connected with adopting USB interface between the signal processing module.
Interface channel switching array module was switched when said measuring probe was a plurality of, and said passage switching array module is controlled by signal processing module.
The measuring-signal of said measuring probe is through amplifying circuit input analog-to-digital conversion module.
Said amplifying circuit connects a true active voltage conversion module, the true active voltage signal input analog-to-digital conversion module after the conversion.
Said constant-current source uses Direct Digital Frequency Synthesizers to produce.
Said analog-to-digital conversion module adopts 24 bit moduli conversion chips.
Position relation between said first voltage electrode-first galvanic electrode-second voltage electrode is: first voltage electrode and first galvanic electrode are at a distance of 8mm, and first galvanic electrode and second voltage electrode are at a distance of 12mm.
Said first voltage electrode, first galvanic electrode and the second voltage electrode profile are cylinder, the bottom have indent the curved surface groove; Said second galvanic electrode is a lamellar.
Said signal processing module adopts microprocessor chip.
Compared with prior art, the technique effect that has of the present invention has:
1, measuring probe has adopted the uniqueness of skin four electrodes to settle, and can measure subcutaneous zonule resistance;
2, the small designization of whole system of the present invention, and accomplish that measurement has high sensitivity, high stability, low noise, anti-interference on human body.
3, there is multi-channel test electrode group in system of the present invention, but long-time continuous is measured employing multichannel computer control and image data.
4, system of the present invention can convenient and swiftly implement multiple testing scheme.
Description of drawings
Fig. 1 is four electrode arrangement position views;
Fig. 2 is electrode electricity streamline and equipotential surface sketch map;
Fig. 3 is four electrode arrangement position views in the measuring probe of the present invention;
Fig. 4 is four electrode structural charts in the measuring probe of the present invention;
Wherein, 21,23 is voltage electrode; The 22-galvanic electrode; The public galvanic electrode of 24-; The fixing insulation board of using of 25-; 26-is with the fixing insulation board of using of preamplifier;
Fig. 5 is placed in surface test sketch map for measuring probe of the present invention;
Fig. 6 is a system architecture diagram of the present invention;
The meridian point resistance plot that Fig. 7 finally obtains for system of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explanation.
The present invention adopts four electrodes to measure the resistance of a subcutaneous zonule as measuring probe, and four electrodes comprise two voltage electrodes, a galvanic electrode, and a common current electrode below carries out principle analysis:
The position relation of four electrodes is as shown in Figure 1; In even conductor, the Potential distribution of steady current field satisfies Laplace's equation:
Settle four point electrodes in half infinitely great evenly surface of conductors, as shown in Figure 1, and pass to steady current, and can be by voltmeter reading V, ammeter reading I, and interelectrode distance d
1, d
2, calculate conductor resistance rate ρ:
R in the formula
MNBe the resistance measurement value.
Actual measurement location is on people's limbs the time, and electric current line wherein and equipotential surface will no longer be counter electrode P
IBe ball and be symmetrically distributed, and asymmetric distribution roughly as shown in Figure 2 is arranged, P
vWith P
VrOn same equipotential surface, if P
vFrom P
IFar away, counter electrode is made favourable.
Principle analysis according to above-mentioned is done arrangement as shown in Figure 3 with voltage electrode in this specific embodiment, 21,23 is voltage electrode, and 22,24 is galvanic electrode, and wherein 24 is public galvanic electrode.It is the metal cartridge of 5mm that voltage electrode 21,23 on the skin electrode, electric current supplying electrode 22 all adopt diameter, and the curved surface groove of dark about 1mm is arranged at the bottom; Spacing L between voltage electrode 21 and the galvanic electrode 22
2=8mm; Spacing L between galvanic electrode 22 and the voltage electrode 23
1=12mm; Public galvanic electrode 24 can adopt diameter 20-30mm sheet metal (like silver, rustless steel etc.) away from skin electrode, is fixed on any measuring position easily with adhesive plaster or elastic band.Wherein, voltage electrode 21,23 connects preamplifier; Galvanic electrode 22,24 connects the 5KHz current source.Employed power frequency belongs to quasi-stationary current.
Be placed in surface test sketch map, skin electrode P like Fig. 5 for measuring probe of the present invention
V, P
V "Be the voltage end of four electrodes, P
I, P
IRIt is the current terminal of four electrodes.
24 pairs of geomeries of public galvanic electrode do not have strict demand in this specific embodiment; Other three electrodes are the cylindric electrode of rustless steel; Its size and mutual alignment and measured value relation are very big, so be fixed on the insulation board (among Fig. 4 25,26); In order to reduce interfering signal, preamplifier is (among Fig. 4 on 26) following closely.
As shown in Figure 6, meridian point characteristic information extraction system of the present invention comprises 12 measuring probes; Each measuring probe is all settled according to shown in Figure 3; Adopt 12 passage switching array modules to switch, the signal that measuring probe is measured connects a true active voltage conversion module through the amplification of an amplifying circuit; True active voltage signal input analog-to-digital conversion module after the conversion, the digital signal input signal processing module after the conversion.Galvanic electrode in the said measuring probe connects the constant-current source module, and the electric current of constant frequency is provided by the constant-current source module; Voltage electrode in the said measuring probe connects analog-to-digital conversion module, and the conversion of signals that said analog-to-digital conversion module is measured measuring probe is a digital signal; Said analog-to-digital conversion module connects signal processing module, and said signal processing module also connects measuring probe, constant-current source module, analog-to-digital conversion module; Said software control module connects signal processing module, is used for the process of control data collection and the data show of signal processing module output is come out.
Constant-current source described in the present embodiment uses Direct Digital Frequency Synthesizers to produce.
Analog-to-digital conversion module in the present embodiment adopts 24 bit moduli conversion chips.
Signal processing module adopts microprocessor to realize in the present embodiment.
Software control module is located on the computer in the present embodiment, adopts USB interface to be connected between software control module and the signal processing module.Running control software is controlled whole measuring process on computers; The software adopted Microsoft Studio C# language is write, and pattern manipulation interface shows attractive in appearance, easy to operate, has realized timing acquiring; The automatic switchover passage; Test process and data screen show that data can be stored as Microsoft 0ffice Excel file format, make things convenient for subsequent treatment.
Use system of the present invention to measure, measuring current is less than 30 microamperes, and subcutaneous some resistance measurement error is less than 1%.Wherein power pack adopts full quarantine measures, so that reach the somatometry safety requirements, has jamproof function simultaneously.
System of the present invention can the multiple spot continuous measurement, and whole measuring process is by computer control, and data are by computer acquisition, and certainty of measurement can reach 0.05 ohm; Every point measurement time is 3 seconds, and every the wheel can be surveyed 12 points at most, and every wheel measurement minimum interval is 1 minute; Can do the continuous measurement of many wheels; Data are convenient to curve display and various processing with the automatic record of Excel form.
May further comprise the steps when specifically measuring:
1) will be as four electrodes of measuring probe, the voltage electrode-galvanic electrode that is fixed together-voltage electrode places on the human body skin to be measured, and another galvanic electrode is fixed on other positions of human body away from the electrode that is fixed together;
2) 12 measuring probes are placed in the different position of human body simultaneously, and 12 measuring probes adopt a passage switching array module to control, and switch that can the control survey probe promptly can be measured the human body resistance of diverse location simultaneously;
3) duration through the computer installation acquired signal and at interval, as every point measurement time be 3 seconds, the minimum interval is 1 minute, and the pumping signal that the 5KHz current source provides to galvanic electrode is set;
4) according to duration and the interval set, the information that the measuring probe position measurement is gone out is presented on the computer screen, with the automatic record of Excel form, carries out the curve display and the various processing of follow-up needs.
As shown in Figure 7; With a healthy collegegirl as tested object; During 12 measuring probes are placed on respectively all, the left and right sides at Xuanzhong, sp 6, Taixi, too white, sea of blood acupuncture point, begin after 2.5 minutes to measure, every point measurement time is 3 seconds; The minimum interval is 1 minute, draws the curve display figure of resistance and time at last.
Although disclose specific embodiment of the present invention and accompanying drawing for the purpose of illustration; Its purpose is to help to understand content of the present invention and implement according to this; But it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the present invention and appended claim, various replacements, variation and modification all are possible.The present invention should not be limited to this description most preferred embodiment and the disclosed content of accompanying drawing, and the scope that the present invention requires to protect is as the criterion with the scope that claims define.
Claims (9)
1. a meridian point characteristic information extraction system is characterized in that, comprises at least one measuring probe, signal processing module, analog-to-digital conversion module, constant-current source module and software control module;
Said measuring probe comprises two voltage electrodes, two galvanic electrodes; Said two voltage electrodes and galvanic electrode are arranged according to first voltage electrode-first galvanic electrode-second voltage electrode and are fixed together; First voltage electrode and first galvanic electrode distance are less than first galvanic electrode and the second voltage electrode distance; The former is at a distance of 8mm, and the latter is that second galvanic electrode is a public electrode at a distance of 12mm; Be placed in second voltage electrode, one side, be not less than 20 centimetres with the distance of nearest voltage electrode; Two galvanic electrodes in the said measuring probe connect the constant-current source module, by the constant-current source module constant alternating current are provided;
Voltage electrode in the said measuring probe connects analog-to-digital conversion module, and said analog-to-digital conversion module converts the voltage signal that probe measurement goes out into digital signal;
Said analog-to-digital conversion module connects signal processing module, and said signal processing module also connects measuring probe, constant-current source module, analog-to-digital conversion module;
Said software control module connects signal processing module, is used for the process of control data collection and the data show of signal processing module output is come out.
2. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that said software control module is located on cell phone system or the computer, is connected with adopting USB interface between the signal processing module.
3. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that, said measuring probe is that 12 passage switching array modules are switched, and said passage switching array module is controlled by signal processing module.
4. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that, the measuring-signal of said measuring probe is through amplifying circuit input analog-to-digital conversion module.
5. meridian point characteristic information extraction system as claimed in claim 4 is characterized in that, said amplifying circuit connects a true active voltage conversion module, the true active voltage signal input analog-to-digital conversion module after the conversion.
6. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that, the constant alternating current that said constant-current source module provides uses Direct Digital Frequency Synthesizers to produce.
7. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that said analog-to-digital conversion module adopts 24 bit moduli conversion chips.
8. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that, said first voltage electrode, first galvanic electrode and the second voltage electrode profile are cylinder, the bottom have indent the curved surface groove; Said second galvanic electrode is a lamellar.
9. meridian point characteristic information extraction system as claimed in claim 1 is characterized in that, said signal processing module adopts microprocessor chip.
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| CN201010539472A CN101999898B (en) | 2010-11-09 | 2010-11-09 | Meridian point property information extraction system |
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|---|---|---|---|
| CN201010539472A CN101999898B (en) | 2010-11-09 | 2010-11-09 | Meridian point property information extraction system |
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| CN101999898B true CN101999898B (en) | 2012-09-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579044B (en) * | 2012-02-27 | 2013-07-10 | 天津大学 | Electrical impedance imaging system of exciting and acquisition dual-scanning mode and information acquisition method thereof |
| CN102805622B (en) * | 2012-09-07 | 2014-04-30 | 苏密勇 | Synchronous impedance spectrum measurement method and device for bilateral channels and acupoints of human body |
| CN104970791A (en) * | 2014-04-14 | 2015-10-14 | 文小凡 | Main and collateral channel detector and detection method thereof |
| TWI613612B (en) * | 2015-11-12 | 2018-02-01 | Huang Zong Zheng | Blood and blood circulation monitoring device |
| CN106377260A (en) * | 2016-09-30 | 2017-02-08 | 上海市中西医结合医院 | Meridian detection device |
| CN108283759A (en) * | 2017-12-29 | 2018-07-17 | 新绎健康科技有限公司 | The curent change measuring system and method for the faint electro photoluminescence of collaterals of human |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059074U (en) * | 1988-07-18 | 1990-07-11 | 中国科学院力学研究所新技术开发公司 | Analyzer for traditional chinese medicine channels and collaterials information |
| CN1095629A (en) * | 1994-01-04 | 1994-11-30 | 张志远 | Bio information extraction and analytical method and channel and collateral information whirling feedback dredging instrument |
| CN1109730A (en) * | 1994-12-22 | 1995-10-11 | 曾鼎熹 | Nonpolar dynamic quantitative multichannel detecting system for Jingluo |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100459903B1 (en) * | 2002-07-25 | 2004-12-03 | 삼성전자주식회사 | Measurement system and electrode for measuring the impedance of small area of skin |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059074U (en) * | 1988-07-18 | 1990-07-11 | 中国科学院力学研究所新技术开发公司 | Analyzer for traditional chinese medicine channels and collaterials information |
| CN1095629A (en) * | 1994-01-04 | 1994-11-30 | 张志远 | Bio information extraction and analytical method and channel and collateral information whirling feedback dredging instrument |
| CN1109730A (en) * | 1994-12-22 | 1995-10-11 | 曾鼎熹 | Nonpolar dynamic quantitative multichannel detecting system for Jingluo |
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