CN109924950A - The measuring device of body surface bioelectrical signals - Google Patents
The measuring device of body surface bioelectrical signals Download PDFInfo
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- CN109924950A CN109924950A CN201910343257.XA CN201910343257A CN109924950A CN 109924950 A CN109924950 A CN 109924950A CN 201910343257 A CN201910343257 A CN 201910343257A CN 109924950 A CN109924950 A CN 109924950A
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- chip
- body surface
- bioelectrical signals
- power supply
- touch detection
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Abstract
The present invention provides a kind of measuring device of body surface bioelectrical signals, the device mainly includes: power supply, touch detection chip, power supply control chip, body surface bioelectrical signals measurement chip and communication chip.Touch detection chip is connect with power supply control chip, power supply control chip is connect with touch detection chip, body surface bioelectrical signals measurement chip and communication chip, body surface bioelectrical signals measurement chip is connected with, power supply control chip and communication chip, and communication chip measures chip with the power supply control chip and body surface bioelectrical signals and connect.The device of the embodiment of the present invention is compared with power switch and body surface bioelectrical signals measuring device that the prior art is obviously artificially controlled using independent needs, more meet the application scenarios of body surface acquiring biological electric signals, and assign all kinds of body surface bioelectrical signals measuring devices smaller, more succinct appearance, traditional scheme is compared simultaneously, and touching power switch has many advantages, such as stable, reliable, longer life expectancy.
Description
Technical field
The present invention relates to a kind of measurement of biomedical engineering technology field more particularly to body surface bioelectrical signals dresses
It sets.
Background technique
Clinically common body surface bioelectrical signals mainly have: electrocardio, brain electricity, myoelectricity, stomach electricity, eye electricity etc., conventional at present
Body surface bioelectrical signals measuring system in power switch use independent switch module, the variation of switch state in use needs
Want apparent human intervention.
The shortcomings that above-mentioned body surface bioelectrical signals measuring system in the prior art are as follows: measure system in body surface bioelectrical signals
In system, the use for being artificially adjusted to system of switch state is made troubles, and especially some gerontal patients often forget after use
Note turns off equipment, and battery over-discharge seriously affects the service life of equipment；And independent switch module is for human intervention
It is convenient, occupied space is larger, is not suitable for the body surface bioelectricity detecting instrument of small volume.
Summary of the invention
The embodiment provides a kind of measuring devices of body surface bioelectrical signals, to overcome the prior art
Problem.
To achieve the goals above, this invention takes following technical solutions.
A kind of measuring device of body surface bioelectrical signals, comprising: power supply, touch detection chip, power supply control chip,
Body surface bioelectrical signals measure chip and communication chip；
The touch detection chip, for being connect with the power supply control chip, body surface bioelectrical signals measurement chip,
After touching body surface, the bioelectrical signals of the body surface of touch point are acquired, it is raw that the bioelectrical signals are transferred to body surface
Object electric signal measurement chip, and power supplying control signal is issued to the power supply control chip；
The power supply control chip, for the touch detection chip, the body surface bioelectrical signals measurement chip and
Communication chip connection, according to power supplying control signal or power down control signal that the touch detection chip transmits, control
The power supply and power-off of the measurement of body surface the bioelectrical signals chip and the communication chip；
The body surface bioelectrical signals measure chip, are used for and the touch detection chip, power supply control chip and communication
Chip is connected, and obtains body surface bioelectrical signals value according to the bioelectrical signals measurement that the touch detection chip transmits, will
The body surface bioelectrical signals value is transferred to the communication chip；
The communication chip will be described by communication line for connecting with body surface bioelectrical signals measurement chip
Body surface bioelectrical signals value is exported to external equipment；
The power supply, for the touch detection chip, power supply control chip, body surface bioelectrical signals measurement chip and
Communication chip connection is powered to all parts of connection.
Preferably, delay circuit is provided between the touch detection chip and power supply control chip；
The touch detection chip is also used to after touch point is separated with human body, and Xiang Suoshu delay circuit issues power-off
Control signal；
The delay circuit, when the time for separating when touch point with human body is shorter than the time threshold set, to institute
It states power supply control chip and issues power supplying control signal；The time threshold that time for separating when touch point with human body does not set shorter than
When value, Xiang Suoshu power supply control chip issues power down control signal.
Preferably, the touch detection chip includes touch element and body surface bioelectrical signals element；
The touch element, for including touch point, which is contacted by electrode with body surface；
The body surface bioelectrical signals element is obtained for the change of the capacitance profile in the electrode at detected touch point
Bioelectrical signals.
Preferably, the touch detection chip measures chip with the body surface bioelectrical signals by PCB copper foil and connect, and touches
A bioelectrical signals at touching pass to the body surface bioelectrical signals by PCB copper foil and measure chip.
Preferably, the power supply control chip is LDO power supply chip.
Preferably, described device further includes display terminal, which is connected by communication line and the communication chip
It connects, receives and show the body surface bioelectrical signals value that the communication chip transmits.
As can be seen from the technical scheme provided by the above-mentioned embodiment of the present invention, the device of the embodiment of the present invention and existing skill
Art is compared using the traditional switch and body surface bioelectrical signals measuring device for needing obvious human intervention on-off, more meets body
The application scenarios of table acquiring biological electric signals, and it is smaller, more succinct outer to assign all kinds of body surface bioelectrical signals measuring devices
It sees.Traditional scheme is compared simultaneously, touches power switch and has and stablize, reliably, the advantages that longer life expectancy.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 be a kind of structural schematic diagram of the measuring device of body surface bioelectrical signals of the embodiment of the present invention, Detailed description of the invention:
1 power supply
2 touch detection chips
3 power supply control chips
4 body surface bioelectrical signals measure chip
5 communication chips
6 delay circuits.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
In order to facilitate understanding of embodiments of the present invention, further by taking specific embodiment as an example below in conjunction with attached drawing to be solved
Release explanation.
The embodiment of the invention provides a kind of measuring device of body surface bioelectrical signals, the structure of the device such as Fig. 1
It is shown, comprising: power supply 1, touch detection chip 2, power supply control chip 3, body surface bioelectrical signals measurement chip 4 and communication chip
5。
Touch detection chip 2, for connecting with power supply control chip, body surface bioelectrical signals measurement chip, detection is touched
Point and the contact condition of human skin are simultaneously converted to status signal, and Xiang Suoshu power supply control chip 3, which issues, to be powered or power-off controls
Signal.
Touch detection chip 2 includes touch element and body surface bioelectrical signals element；
The touch element, for including touch point, which is contacted by electrode with body surface；
The body surface bioelectrical signals element is obtained for the change of the capacitance profile in the electrode at detected touch point
Bioelectrical signals.After touching body surface, the bioelectrical signals of the body surface of touch point are acquired, by the bioelectrical signals
It is transferred to body surface bioelectrical signals measurement chip, and issues power supplying control signal to the power supply control chip.
Power supply control chip 3, for measuring chip 4 with the touch detection chip 2, the body surface bioelectrical signals and leading to
It interrogates chip 5 to connect, the energization transmitted according to the touch detection chip 2 or power down control signal control the body surface
The power supply and power-off of bioelectrical signals measurement chip 4 and the communication chip 5.
Body surface bioelectrical signals measure chip 4, for being connected with the power supply control chip 3 and communication chip 5, acquire body
Table bioelectrical signals value is simultaneously transferred to the communication chip 5.
Communication chip 5, for being connect with body surface bioelectrical signals measurement chip 4, by communication line by body surface bioelectricity
Signal value is exported to external equipment.
Power supply 1, for measuring chip 4 and communication with touch detection chip 2, power supply control chip 3, body surface bioelectrical signals
Chip 5 connects, and powers to all parts of connection.
As no human contact, touch detection chip 2 does not collect variation of the inductance capacitance relative to initial value of touch point,
Touch detection chip 2 transmits power down control signal to power supply control chip 3, and cutting body surface bioelectrical signals measure chip 4 and lead to
The power supply of chip 5 is interrogated, which is in standby；When there is human contact, touch detection chip 2 collects the sense of touch point
Variation of the capacitor relative to initial value is answered, touch detection chip 2 transmits power control signal to power supply control chip 3, so that electric
Source controls chip 3 and measures chip 4 and the power supply of communication chip 5 to body surface bioelectrical signals, at this point, body surface bioelectrical signals measure core
The body surface bioelectrical signals value measured is transferred to communication chip 5 by piece 4, and communication chip 5 is biological by body surface by communication line
Value of electrical signals is exported to external equipment.
In the present embodiment, it is also connected with delay circuit 6 between touch detection chip 2 and power supply control chip 3, works as touch point
With human body is of short duration separate when, touch detection chip 2 to delay circuit issue power-off signal.When delay circuit 6 judges disengaging time
(for example when for 1s or 0.5s), delay circuit 6 still makes power supply control chip 3 to body surface bioelectricity to the time threshold shorter than set
Signal measurement chip 4 and communication chip 5 export power supplying control signal, guarantee the measurement of body surface bioelectrical signals continue normally into
Row；When delay circuit 6 judges the disengaging time not shorter than time threshold of setting, delay circuit 6 makes power supply control chip 3 to body
Table bioelectrical signals measure chip 4 and communication chip 5 exports power down control signal.
In embodiments of the present invention, the changing for the capacitance profile in the electrode at detected touch point of touch detection chip 2
Become, the contact condition of touch point and human body is judged according to the change of the capacitance profile.In certain applications scene, touch element
Circuit occupied area can be further decreased in conjunction with body surface electrode for sampling biological electric signal.
When measuring different body surface bioelectrical signals (such as: electrocardio, brain electricity, myoelectricity, stomach electricity, eye electricity), body surface biology
The difference of the structure of electrical signal collection electrode not substantially, only point of the quantity of electrode.Usual touch detection chip 2
A touch electrode is only needed, certain applications scene can be shared with body surface electrode for sampling biological electric signal, select one and body
It is bonded preferable electrode.
Touch detection chip 2 passes through PCB (Printed Circuit Board, printed circuit board) copper foil and touch element
Connection.
Those skilled in the art will be understood that the PCB connection type between above-mentioned touch detection chip 2 and touch element only
For citing, other connection types that are existing or being likely to occur from now on are such as applicable to the embodiment of the present invention, should also be included in this
Within invention protection scope, and it is incorporated herein by reference.
For different test items, body surface bioelectrical signals measurement chip 4 is different, and measures electrocardio electrocardio sensing
Device measures brain electricity eeg sensor.
In the present embodiment, above-mentioned power supply control chip 3 can use LDO (low dropout regulator, low voltage difference
Linear voltage regulator) power supply chip realizes.
The supply voltage that usual lithium battery provides is 3.7V-4.2V or so, and general low voltage chip operating voltage is 3.3V,
The effect of LDO power supply chip is exactly to be down to the voltage of lithium battery in the voltage range of chip normal work.LDO power supply chip pressure
Drop is smaller, and volume is also relatively small, it is not possible to be substituted for other power supply chips, such as Switching Power Supply.
Body surface bioelectrical signals measuring device further includes display terminal, and display terminal passes through communication line and communication chip 5
Connection, receives and shows the body surface bioelectrical signals value that communication chip 5 transmits.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (6)
1. a kind of measuring device of body surface bioelectrical signals characterized by comprising power supply, touch detection chip, power supply
Control chip, body surface bioelectrical signals measurement chip and communication chip；
The touch detection chip is being touched for connecting with the power supply control chip, body surface bioelectrical signals measurement chip
After body surface, the bioelectrical signals of the body surface of touch point are acquired, the bioelectrical signals are transferred to body surface bioelectricity
Signal measurement chip, and power supplying control signal is issued to the power supply control chip；
The power supply control chip, for measuring chip and communication with the touch detection chip, the body surface bioelectrical signals
Chip connection, according to power supplying control signal or power down control signal that the touch detection chip transmits, described in control
The power supply and power-off of body surface bioelectrical signals measurement chip and the communication chip；
The body surface bioelectrical signals measure chip, are used for and the touch detection chip, power supply control chip and communication chip
It is connected, body surface bioelectrical signals value is obtained according to the bioelectrical signals measurement that the touch detection chip transmits, it will be described
Body surface bioelectrical signals value is transferred to the communication chip；
The communication chip, for being connect with body surface bioelectrical signals measurement chip, by communication line by the body surface
Bioelectrical signals value is exported to external equipment；
The power supply, for measuring chip and communication with the touch detection chip, power supply control chip, body surface bioelectrical signals
Chip connection is powered to all parts of connection.
2. the apparatus according to claim 1, which is characterized in that between the touch detection chip and power supply control chip
It is provided with delay circuit；
The touch detection chip is also used to after touch point is separated with human body, and Xiang Suoshu delay circuit issues power-off control
Signal；
The delay circuit, when the time for separating when touch point with human body is shorter than the time threshold set, to the electricity
Source controls chip and issues power supplying control signal；The time threshold that time for separating when touch point with human body does not set shorter than
When, Xiang Suoshu power supply control chip issues power down control signal.
3. the apparatus of claim 2, which is characterized in that the touch detection chip includes that touch element and body surface are raw
Object electrical signal components；
The touch element, for including touch point, which is contacted by electrode with body surface；
The body surface bioelectrical signals element obtains biology for the change of the capacitance profile in the electrode at detected touch point
Electric signal.
4. device according to claim 3, which is characterized in that the touch detection chip passes through PCB copper foil and the body
Table bioelectrical signals measure chip connection, and the bioelectrical signals at touch point pass to the body surface biology telecommunications by PCB copper foil
Number measurement chip.
5. device according to claim 4, which is characterized in that the power supply control chip is LDO power supply chip.
6. device according to claim 1-5, which is characterized in that described device further includes display terminal, this is aobvious
Show that terminal is connect by communication line with the communication chip, receives and show the body surface biology that the communication chip transmits
Value of electrical signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343257.XA CN109924950A (en) | 2019-04-26 | 2019-04-26 | The measuring device of body surface bioelectrical signals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343257.XA CN109924950A (en) | 2019-04-26 | 2019-04-26 | The measuring device of body surface bioelectrical signals |
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| CN109924950A true CN109924950A (en) | 2019-06-25 |
Family
ID=66991045
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| CN201910343257.XA Pending CN109924950A (en) | 2019-04-26 | 2019-04-26 | The measuring device of body surface bioelectrical signals |
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| CN210055994U (en) * | 2019-04-26 | 2020-02-14 | 北京柔云科技有限责任公司 | Measuring device for human body surface bioelectric signal |
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| US5333615A (en) * | 1992-06-22 | 1994-08-02 | William Craelius | Apparatus for digitally recording and analyzing electrocardial and other bioelectric signals |
| CN1820703A (en) * | 2006-01-26 | 2006-08-23 | 中国人民解放军空军航空医学研究所 | Measuring method and system for achieving blood pressure continuous measurement of pulse wave conduction time |
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