CN105326502A - Detection device and method for human body surface electrical characteristic distribution - Google Patents

Detection device and method for human body surface electrical characteristic distribution Download PDF

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Publication number
CN105326502A
CN105326502A CN201410320528.7A CN201410320528A CN105326502A CN 105326502 A CN105326502 A CN 105326502A CN 201410320528 A CN201410320528 A CN 201410320528A CN 105326502 A CN105326502 A CN 105326502A
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CN
China
Prior art keywords
electrical
sensing module
eigenvalue
amplitude
module
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CN201410320528.7A
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Chinese (zh)
Inventor
雍珊珊
郭到鑫
王新安
彭然
商亚洲
李木
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北京大学深圳研究生院
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Priority to CN201410320528.7A priority Critical patent/CN105326502A/en
Publication of CN105326502A publication Critical patent/CN105326502A/en

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Abstract

The invention discloses a detection device and method for human body surface electrical characteristic distribution. The detection device comprises a sensing module and a terminal module, wherein the sensing module is used for transmitting an excitation signal to a human body surface detected part, acquiring a response signal from the detected part and processing the response signal so as to obtain amplitude and phase data of human body surface electrical characteristics; and the terminal module is used for computing the amplitude and phase data from the sensing module by virtue of a biological tissue electrical model so as to obtain a characteristic value on the human body surface electrical characteristics, and displaying the characteristic value and/or drawing a human body surface electrical characteristic distribution diagram according to the characteristic value. According to the detection device and the detection method disclosed by the invention, the sensing module is used for detecting the human body surface detected part and for transmitting a detection result to the terminal module, and the terminal module is used for processing the detection result so as to obtain the characteristic value of the human body surface electrical characteristics and is used for displaying the characteristic value; and the distribution of the body surface electrical characteristics can be directly and visually represented when the human body surface electrical characteristic distribution diagram is selected to be displayed, so that body surface integral characteristic statuses and body surface partial electrical characteristic statuses are clearly compared.

Description

A kind of checkout gear of body surface electrical characteristics distribution and method
Technical field
The present invention relates to physiological signal collection processing technology field, be specifically related to checkout gear and the method for the distribution of a kind of body surface electrical characteristics.
Background technology
Body surface electrical characteristics information generally comprises impedance, conductance, admittance, dielectric constant electrical characteristics.By the detection analysis to body surface electrical characteristics, some physiologic informations about human body can be obtained.The electrical characteristics of body surface can the health status of direct reaction body surface, comprises the anticipation to body surface skin disease, show the oiliness of whole body surface skin, dryness analysis etc.Moreover body surface electrical characteristics can show the mental status of a people, when research finder is in the negative emotions such as nervous depressed and when being in high-spirited excited front emotion, the distribution of the electrical characteristics of its body surface can be different.In addition, also there are some researches show, the electrical characteristics of body surface have inseparable relation with the internal organs in body, if can detect the distribution of whole body body surface electrical characteristics, certainly will promote the research contacting the parties concerned of body surface signal and body interior, such as body surface strengthens the joint development of Chinese and Western medicine through cave electrical characteristics scattergram.
At present, the detection range of body surface electrical characteristics detection is settled finally really and is limited to single-point detection, namely each only to select on body surface point to test, this detection mode is not only very inconvenient and consuming time, and the electrical characteristics of whole body surface can not be drawn out, clear and concrete cognition can not be distributed with to the electrical characteristics of whole body surface.In addition, be all carry out simple process to the process of body surface electrical characteristic data, record carried out to body surface single-point electrical characteristic data namely more elementaryly, draw single-point electrical characteristics image, do not possess the analysis to body surface electrical characteristics.
Summary of the invention
According to a first aspect of the invention, the invention provides the checkout gear of a kind of body surface electrical characteristics distribution, comprise: sensing module, for pumping signal being conducted at least one tested position of body surface, gather the response signal of tested position under pumping signal effect, described response signal is processed, obtains amplitude and the phase data of body surface electrical characteristics; Terminal module, calculate from the amplitude of described sensing module and phase data for utilizing biological tissue's electrical model, obtain the eigenvalue about body surface electrical characteristics, the body surface electrical characteristics scattergram showing described eigenvalue and/or draw out according to described eigenvalue.
According to a second aspect of the invention, the invention provides and a kind ofly use checkout gear as above to distribute the method detected to body surface electrical characteristics, comprise: terminal module receives from the amplitude of the body surface electrical characteristics of sensing module and phase data, arranges driving source frequency and electrical signal collection frequency in described sensing module; Terminal module calculates according to amplitude and phase data, obtains the eigenvalue about body surface electrical characteristics; Terminal module is corresponding with partes corporis humani position by described eigenvalue, described eigenvalue is divided into groups, according to thermal imaging principle, different groupings is corresponded to different colors, the color corresponding according to eigenvalue and human body, draw out body surface electrical characteristics scattergram and shown.
The invention has the beneficial effects as follows: by sensing module, the tested part of body surface is detected, and testing result is sent to terminal module, carry out processing by terminal module the eigenvalue that obtains body surface electrical characteristics and shown, user clearly can learn oneself electrical characteristic parameter value, if and selection display is body surface electrical characteristics scattergrams, then show body surface electrical characteristics distribution situation more visual pattern, can have been contrasted clearly the electrical characteristics situation of body surface entire and part.
Accompanying drawing explanation
Fig. 1 is the body surface electrical characteristics distribution detection method schematic flow sheet of an embodiment of the present invention;
The structural representation of checkout gear when Fig. 2 is the spot measurement detection of an embodiment of the present invention;
The structural representation of checkout gear when Fig. 3 is the multimetering detection of an embodiment of the present invention;
Fig. 4 is the checkout gear schematic diagram of the body surface electrical characteristics distribution of an embodiment of the present invention;
Fig. 5 is the body surface electrical characteristics scattergram schematic diagram of 3 D stereo.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, will be used for implementing optimum implementation of the present invention to describe with reference to accompanying drawing below.
[embodiment 1]
According to a kind of detailed description of the invention of the present invention, propose the checkout gear of a kind of body surface electrical characteristics distribution, comprise sensing module and terminal module.Sensing module is used at least one tested position pumping signal being conducted to body surface, gathers the response signal of tested position under pumping signal effect, processes response signal, obtain amplitude and the phase data of body surface electrical characteristics.Terminal module calculates from the amplitude of sensing module and phase data for utilizing biological tissue's electrical model, obtains the eigenvalue about body surface electrical characteristics, indicating characteristic value and/or the body surface electrical characteristics scattergram drawn out according to eigenvalue.
Sensing module comprises measured node, acquisition process unit, sense terminals transmission unit and supply module.Measured node is used for pumping signal to conduct to the tested position of body surface, and gathers the response signal of tested position under pumping signal effect; Acquisition process unit, is connected with measured node, for processing response signal, obtains amplitude and the phase data of body surface; Sense terminals transmission unit is used for amplitude and phase data to send out; Power supply unit is used for providing electric energy for sensing module.
In the present embodiment, measured node comprises single measured node and many measured node, and described single measured node comprises SMD electrode, and described many measured node comprise the multiple electrodes distributed with one dimension band shape or two-dimensional rectangle mode.In a kind of concrete example, single measured node adopts flexible dry electrode, contacts with body surface regional area in the mode of paster, can to this regional area real-time, detect easily; The unit with acquisition function in single measured node can be banded with one dimension or multiple electrodes of distributing of two-dimensional rectangle mode, can cover body surface one panel region, thus can to this region carry out real-time, detect easily.For single measured node, it provides the pumping signal be loaded on skin, comprises direct digital synthesis technique unit (DDS), amplification filtering, Voltage-controlled Current Source (VCCS) etc.The specific implementation of these parts can measure relevant parts with reference to common body surface, does not describe in detail herein.
The response voltage signal that measured node can collect by acquisition process unit carries out amplitude amplification, carried out amplitude detection and obtained amplitude information, also original excitation signal and response signal are all delivered in phase discriminator simultaneously and process, obtain phase information, thus the relevant amplitude of body surface electrical characteristics and phase information can be obtained.The realization of concrete acquisition process unit can measure relevant parts with reference to common body surface, does not describe in detail herein.
In another kind of embodiment, sensing module also comprises memory element, the amplitude exported for storage of collected processing unit and phase data.
Terminal module comprises terminal transmission unit, signal processing unit and display unit.Terminal transmission unit is for receiving amplitude and the phase data of sensing module; Signal processing unit is used for utilizing biological tissue's electrical model to process described amplitude and phase data, obtains the eigenvalue about body surface electrical characteristics; Display unit, comprise numerical value display subelement and/or figure display subelement, numerical value display subelement is used for directly showing described eigenvalue, and figure display subelement is for showing the body surface electrical characteristics scattergram drawn out according to described eigenvalue.In figure display subelement, use gradual change color series, in gradual change color series, each color is corresponding with eigenvalue, and color corresponding for eigenvalue is plotted on human body figure.
In another embodiment, terminal module is also for sensing module transmission request information and/or command information, and sensing module is also for receiving solicited message and/or command information; Wherein, solicited message comprises amplitude and the phase data of acquisition request body surface electrical characteristics, command information comprises the instruction for selecting automatic mode or manual mode, in automatic mode, sensing module is automatically according to the motion frequency adjustment pumping signal of user, in a manual mode, sensing module carries out work according to the pumping signal preset.
In another kind of embodiment, the communication between terminal module and sensing module comprises wire transmission and/or the wireless transmission method based on bluetooth.
The checkout gear of the body surface electrical characteristics distribution that the present embodiment provides, can cover whole body body surface and carry out electrical signal collection, and be analyzed by the signal of telecommunication collected, thus obtain overall body surface electrical characteristics distribution situation.
Adopt the checkout gear based on the present embodiment to detect the distribution of body surface electrical characteristics, electrical characteristics at least comprise impedance, capacitive reactance, conductance, admittance and dielectric constant, and testing process comprises:
In sensing module, set driving source frequency and electrical signal collection frequency, then start to measure and gather, terminal module receives from the amplitude of the body surface electrical characteristics of sensing module and phase data;
Terminal module calculates according to amplitude and phase data, obtains the eigenvalue about body surface electrical characteristics;
Terminal module is corresponding with partes corporis humani position by eigenvalue, eigenvalue is divided into groups, according to thermal imaging principle, different groupings is corresponded to different colors, the color corresponding according to eigenvalue and human body, draw out body surface electrical characteristics scattergram and shown.
For ease of understanding the present embodiment visually and being applied to the process of detection, as shown in Figure 1, detect by single-point detection and multiple spot the mode combined, checkout gear records the electrical characteristics at each position of health body surface, then by data acquisition node, data is sent to data collection station.Data collection station is by corresponding for each position of collected data and body surface, the data collected are carried out packet transaction, the colour system that different groups is corresponding different, then the body surface electrical characteristics scattergram of drawing three-dimensional solid, and quantitative analysis is carried out to localized electric properties distribution and overall electrical characteristics, encloses the electrical characteristics numerical value of data mode in corresponding anthropometric dummy.
The structural representation of checkout gear when Fig. 2 is spot measurement.Single-point measurement apparatus is made up of single measured node and data acquisition node, and the data recorded directly are sent to data acquisition node by measured node.Measured node comprises measurement electrode, signal acquisition module, driving source module, data acquisition node comprises supply module, data acquisition circuit and data transmission module, wherein, measurement electrode refers to the electrode measuring body surface electrical characteristics, signal acquisition module is responsible for receiving the signal of telecommunication collected from electrode, in a kind of embodiment, measurement electrode should be a part for signal acquisition module, driving source module is the signal of telecommunication be loaded on body surface, then signal acquisition module receives this signal of telecommunication sent from driving source after body surface again, data transmission module comprises two kinds of data communication modes: wired data transfer and wireless Bluetooth data transmission.The realization of concrete each module, can not described in detail with reference to existing correlation technique according to embody rule herein.
The structural representation of checkout gear when Fig. 3 is multimetering.Multi point measuring apparatus can gather together and become band or decentralized measure, be made up of multiple measured node and data acquisition node, wherein the body surface electrical characteristic data recorded is sent to data acquisition node according to pre-set order by multiple measured node, and this sending order is according to the data the preset order corresponding with each position of health body surface.DATA REASONING node comprises measurement electrode, signal acquisition module, driving source module, data acquisition node comprises supply module, data acquisition circuit and data transmission module, wherein, data transmission module comprises two kinds of data communication modes: wired data transfer and wireless Bluetooth data transmission composition.Use spot measurement mainly because there are some positions to be inconvenient to carry out multimetering, for example, facial, ear-lobe etc.Multimetering mode has oneself feature, first can be ring-type or band shape, can the electrical characteristics in disposable measurement multi-disc region, such as body trunk, abdominal part etc.Be appreciated that single-point can complete the effect of multimetering through repetitive measurement.
It is the schematic diagram of the body surface electrical characteristics distribution detecting device implementing said method with reference to figure 4.Wherein 1 is checkout gear, and comprise measured node 101 and data acquisition node 102 two parts, 2 is data collection station.First checkout gear 1 is fixed on the body part needing to detect, checkout gear 1 is connected with data collection station 2.Data collection station 2 controls the mode of operation of checkout gear.The mode of operation measured comprises automatic mode and manual mode, and under these two kinds different patterns, data collection station sends different orders to measurement module: under automatic mode, and measurement module can adjust driving source size of current according to motion frequency automatically; Under manual mode, the specific driving source size of current that measurement module can remain on user's setting detects.In a kind of embodiment, order refers to the working method of driving source module that data collection station sends to measurement module, control survey module, is equivalent to a kind of control word.The core of automatic mode and manual mode is the Choice and design of driving source, control is responsible in the work that the interactive interface of display module does, control under which kind of mode of operation, to carry out work, such as, for manual mode, it can comprise the selection of control model, and after choosing pattern, for manual mode, driving source can provide several alternative driving frequency, then selected by user, automatic mode is not then needed.Motion frequency instigates the motion frequency of user, is integrated in driving source the sensor having and be similar to velocity sensor, can collect the motion frequency of user.
When checkout gear 1 is started working, measured node 101 collects human body electrical characteristic data, then sends to data acquisition node 102.The data be aggregated into are sent to data collection station 2 through wireless transmission (also can be wire transmission) by data acquisition node 102.The data category that data collection station 2 will receive, the colour system that each group data is corresponding different, finally according to the mode corresponding with health body surface, the body surface electrical characteristics scattergram of drawing three-dimensional solid.Data collection station is made up of the body surface electrical characteristics scattergram module of data reception module, drawing three-dimensional solid and display module three part.Data reception module can have two kinds: wired data transfer and wireless data transmission, and wherein wireless data transmission observes bluetooth 4.0 specification; The body surface electrical characteristics scattergram module of drawing three-dimensional solid is divided into groups according to mode from small to large by the body surface electrical characteristic data collected, the colour system that different packets is corresponding different, what different pieces of information was corresponding the most at last is assigned in anthropometric dummy by colour system; Display module can either show the body surface electrical characteristics scattergram of final 3 D stereo, also can show concrete numerical value and the reference data at each position of human body electrical characteristics.
With reference to the body surface electrical characteristics scattergram schematic diagram that figure 5 is 3 D stereo, comprise body surface electrical characteristics scattergram and the reference legend of 3 D stereo, and in itemized record anthropometric dummy, the electrical characteristics of data mode distribute.Quantitative analysis is carried out with reference to body surface electrical characteristics scattergram.In a kind of embodiment, when the body surface electrical characteristics scattergram of drawing three-dimensional solid, that the body surface electrical characteristic data collected is divided into groups according to mode from small to large, the colour system that different packets is corresponding different, corresponding being assigned in anthropometric dummy by colour system of different pieces of information the most at last.Such as, draw in Poser software, and use the colour system of a gradual change from yellow to redness, substantially can embody the process of data color also gradual change thereupon from small to large to the classification of this color, embody the progressive formation of human body electrical characteristics thus.Here packet, refers to the corresponding a kind of color of data within the scope of.For display module, it can show three kinds of contents, and a kind of being through measures the body surface electrical characteristics numerical value that obtains, and a kind of is the human body electrical characteristics numerical value (corresponding position) of reference, and another is the human body electrical characteristics distribution being depicted as 3D stereo-picture.Its display mode has two kinds, and one shows on 3D human body electrical characteristics scattergram, and one incidentally provides in table form.Certainly, also can be the human body electrical characteristics scattergram drawing out two dimension.
In a kind of concrete example, the method using the checkout gear of body surface electrical characteristics distribution to carry out detecting comprises the steps:
Step (1), first chooses the position of body surface detection electrical characteristics, ensures to detect the clean of test point, and before detection, use alcohol swab carries out wiping, then chooses detection detection mode: 1. single-point detects; 2. multiple spot detects;
Step (2), after choosing detection mode, is fixed on the position needing to detect: select single-point detection mode just single point detection device to be directly fixed on the position needing detection, the position that single-point as suitable in palm, face, sole etc. detects by checkout gear; Multiple spot detection mode is selected just multipoint detection device to be fixed on the position needing detection, the position that multiple spot as suitable in arm, leg, arm, waist, buttocks, chest, abdominal part etc. detects; After fixing checkout gear, checkout gear is connected with data collection station;
Step (3), data collection station is to the instruction of checkout gear sending body meter signal acquisition: comprise testing circuit voltage drive frequency, data acquisition intervals, detecting pattern;
Step (4), the data collected gather by data acquisition node, and body surface electrical characteristic data is transferred to data collection station by wireless or wired mode;
Step (5), repeats step (1) to step (4), carries out the orderly collection comprehensively carrying out body surface electrical characteristics;
Step (6), data collection station carries out drafting body surface electrical characteristics scattergram: according to human simulation model, by measured data according to dividing into groups from small to large, the colour system that different packets is corresponding different, the body surface electrical characteristics scattergram of final drawing three-dimensional solid.
The follow-up body surface electrical characteristics scattergram that can obtain step (6) is analyzed, and such as, analyzes the distribution situation of body surface localized electric properties, or is the distribution situation analyzing the overall electrical characteristics of body surface.
The present embodiment by the body surface electrical characteristics scattergram of drawing three-dimensional solid, very visual pattern showed body surface electrical characteristics distribution situation, can contrast clearly the electrical characteristics situation of body surface entire and part.And, body surface electrical characteristics contain body surface impedance, capacitive reactance, conductance, admittance, dielectric constant, these body surface electrical characteristics can adopt the checkout gear of the present embodiment to detect, the body surface electrical characteristics scattergram of 3 D stereo can be drawn out respectively separately, carry out quantitative analysis respectively.In addition, the data communication between measuring device and body surface electrical characteristic data acquisition terminal adopts wired and bluetooth 4.0 wireless transmission two kinds of patterns, ensure that the aspect that device uses; In addition, this measuring device is easy to realize under integrated circuit level instantly, is easy to build stable.
It will be appreciated by those skilled in the art that, in above-mentioned embodiment, all or part of step of various method can be carried out instruction related hardware by program and completes, this program can be stored in a computer-readable recording medium, and storage medium can comprise: read only memory, random access memory, disk or CD etc.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.

Claims (10)

1. a checkout gear for body surface electrical characteristics distribution, is characterized in that, comprising:
Sensing module, for pumping signal being conducted at least one tested position of body surface, gathering the response signal of tested position under pumping signal effect, processing described response signal, obtain amplitude and the phase data of body surface electrical characteristics;
Terminal module, calculate from the amplitude of described sensing module and phase data for utilizing biological tissue's electrical model, obtain the eigenvalue about body surface electrical characteristics, the body surface electrical characteristics scattergram showing described eigenvalue and/or draw out according to described eigenvalue.
2. checkout gear as claimed in claim 1, it is characterized in that, described terminal module comprises:
Terminal transmission unit, for receiving amplitude and the phase data of described sensing module;
Signal processing unit, for utilizing biological tissue's electrical model to process described amplitude and phase data, obtains the eigenvalue about body surface electrical characteristics;
Display unit, comprises numerical value display subelement and/or figure display subelement, and described numerical value display subelement is used for directly showing described eigenvalue, and described figure display subelement is for showing the body surface electrical characteristics scattergram drawn out according to described eigenvalue.
3. checkout gear as claimed in claim 2, is characterized in that, described figure display subelement uses gradual change color series, and in described gradual change color series, each color is corresponding with described eigenvalue, and is plotted on human body figure by color corresponding for eigenvalue.
4. checkout gear as claimed in claim 1, it is characterized in that, described sensing module comprises:
Measured node, for pumping signal being conducted to the tested position of body surface, and gathers the response signal of tested position under pumping signal effect;
The acquisition process unit be connected with described measured node, for processing described response signal, obtains amplitude and the phase data of body surface;
Sense terminals transmission unit, for sending out described amplitude and phase data;
Power supply unit, for providing electric energy for described sensing module.
5. checkout gear as claimed in claim 4, it is characterized in that, described measured node comprises single measured node and many measured node, and described single measured node comprises SMD electrode, and described many measured node comprise the multiple electrodes distributed with one dimension band shape or two-dimensional rectangle mode.
6. checkout gear as claimed in claim 4, it is characterized in that, described sensing module also comprises: memory element, for storing amplitude and the phase data of the output of described acquisition process unit.
7. checkout gear as claimed in claim 1, is characterized in that, described terminal module is also for described sensing module transmission request information and/or command information, and described sensing module is also for receiving described request information and/or command information; Wherein, described request information comprises amplitude and the phase data of acquisition request body surface electrical characteristics, described command information comprises the instruction for selecting automatic mode or manual mode, under described automatic mode, described sensing module is automatically according to the motion frequency adjustment pumping signal of user, under described manual mode, described sensing module carries out work according to the pumping signal preset.
8. checkout gear as claimed in claim 1, it is characterized in that, the communication between described terminal module and described sensing module comprises wire transmission and/or the wireless transmission method based on bluetooth.
9. use checkout gear as described in any one of claim 1-8 to distribute the method detected to body surface electrical characteristics, it is characterized in that, comprising:
Terminal module receives from the amplitude of the body surface electrical characteristics of sensing module and phase data, arranges driving source frequency and electrical signal collection frequency in described sensing module;
Terminal module calculates according to amplitude and phase data, obtains the eigenvalue about body surface electrical characteristics;
Terminal module is corresponding with partes corporis humani position by described eigenvalue, described eigenvalue is divided into groups, according to thermal imaging principle, different groupings is corresponded to different colors, the color corresponding according to eigenvalue and human body, draw out body surface electrical characteristics scattergram and shown.
10. method as claimed in claim 9, it is characterized in that, described electrical characteristics at least comprise impedance, capacitive reactance, conductance, admittance and dielectric constant.
CN201410320528.7A 2014-07-07 2014-07-07 Detection device and method for human body surface electrical characteristic distribution CN105326502A (en)

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Application publication date: 20160217