CN108888257A - A kind of wearable health detection equipment of multi-parameter based on shared electrode - Google Patents
A kind of wearable health detection equipment of multi-parameter based on shared electrode Download PDFInfo
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- CN108888257A CN108888257A CN201810403654.7A CN201810403654A CN108888257A CN 108888257 A CN108888257 A CN 108888257A CN 201810403654 A CN201810403654 A CN 201810403654A CN 108888257 A CN108888257 A CN 108888257A
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 230000036541 health Effects 0.000 title claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims description 12
- 210000000707 wrist Anatomy 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000003334 potential effect Effects 0.000 claims description 6
- 206010049244 Ankyloglossia congenital Diseases 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 6
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- 210000004369 blood Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
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- 101100478210 Schizosaccharomyces pombe (strain 972 / ATCC 24843) spo2 gene Proteins 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
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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
- A61B5/6802—Sensor mounted on worn items
Abstract
The invention discloses a kind of wearable health detection equipment of multi-parameter based on shared electrode, including apparatus body；The apparatus body includes electrode, analog switch matrix, signal acquisition unit and processor control unit；Several electrodes are connect with the signal input part of analog switch matrix respectively；The signal output end of the analog switch matrix and the signal input part of signal acquisition unit connect；The signal output end of the signal acquisition unit is connect with the signal input part of processor control unit；The multiple combinations between four electrodes are realized by analog switch matrix, the electrode realized between multiple sensors is shared, to reduce the electrode used therein quantity of equipment, reduces the apparent size design difficulty of wearable device, improves user's usage comfort.
Description
Technical field
The present invention relates to health detection field more particularly to a kind of wearable health detections of multi-parameter based on shared electrode
Equipment.
Background technique
Wearable class product such as bracelet, wrist-watch product have become in daily life indispensable electronic product it
One, however user has been no longer satisfied with the demand of simple step counting, activity, needs to detect more functions, the more ginsengs of intelligence
Number physical signs detection nature becomes first choice.
Basic physical signs can be divided into three categories by detection method：First is that the detection based on photoelectric absorption, bounce technique,
It is common by volumetric blood retouch based on wave (PPG) pulse frequency detection (HRM) and blood oxygen saturation (SPO2)；Second is that being based on bioelectricity
The detection of gesture common are electrocardio (ECG), brain electric (EEG) and myoelectricity (EMG)；Third is that the detection based on impedance, it can be common that body
Body composition analysis (BIA) and electrodermal reaction (EDA or GSR).The advantages of the first optical detection is the active ginseng for being not required to very important person
With, it can be realized noninductive detection, and the detection of subsequent two major classes physical signs is required to using electrode, and needs good contact
Electrode, in general, ECG/EEG/EMG at least needs 2~3 electrodes, and BIA needs 4 electrodes, and EDA at least needs 2
Electrode, if simply integrated these functions, not only required number of elements increases, and the control of the apparent size of product
Difficulty processed also dramatically increases, it is difficult to accomplish small volume and less weight, this to a certain degree on limit its application on wearable product.
Heart rate (HRM) or blood oxygen saturation based on optics PPG detection have been configured on current mainstream bracelet
(SPO2) it detects, a few devices are also also integrated with electrocardio (ECG) function on this basis；These equipment generally also need 2 and fill
Electric terminal/electrode and 1 touch key-press, at least need 5 terminal/electrodes, let alone into one if not being multiplexed electrode
Walk the functions such as integrated EDA, BIA.It is therefore necessary to invent it is a kind of realize multiple sensor common electrodes, safety it is light based on altogether
Enjoy the wearable health detection equipment of multi-parameter of electrode.
Summary of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, it is total that the present invention provides a kind of multiple sensors of realization
With electrode, the wearable health detection equipment of the light multi-parameter based on shared electrode of safety.
Technical solution：To achieve the above object, the wearable health inspection of a kind of multi-parameter based on shared electrode of the invention
Measurement equipment, including apparatus body；The apparatus body includes electrode, analog switch matrix, signal acquisition unit and processor control
Unit processed；Several electrodes respectively connect the signal input part of the different parts of tested human body and analog switch matrix；Institute
The signal input part of the signal output end and signal acquisition unit of stating analog switch matrix connects；The letter of the signal acquisition unit
Number output end is connect with the signal input part of processor control unit.
Further, simulation input protection location is connected between the electrode and analog switch matrix；The mould
If quasi- input protection unit includes dry units group；Several device components are not correspondingly arranged on the channel of each electrode；It is described
Device group includes isolation capacitance, first resistor and second resistance；The isolation capacitance and first resistor are arranged in series；Described second
Resistance is arranged in parallel with isolation capacitance, first resistor.
Further, the signal acquisition unit includes skin potential activity acquisition device；The electrode include first electrode and
Second electrode；The skin contact of the first electrode and second electrode and tested personnel's wearing portion；The first electrode and
Two electrodes are connect with the signal input part of skin potential activity acquisition device respectively；The signal output end of the skin potential activity acquisition device
It is connect with the signal input part of processor control unit.
Further, the signal acquisition unit includes the first biopotential acquisition device；The electrode includes the second electricity
Pole and third electrode；The skin contact of the second electrode and tested personnel's wearing portion；The third electrode and tested personnel
Skin contact other than wearing portion；The second electrode and third the electrode signal with the first biopotential acquisition device respectively
Input terminal connection；The signal output end of the first biopotential acquisition device and the signal input part of processor control unit connect
It connects.
Further, the signal acquisition unit includes the second biopotential acquisition device；The electrode includes the first electricity
Pole, second electrode and third electrode；The skin contact of the first electrode and second electrode and tested personnel's wearing portion；It is described
Skin contact other than third electrode and tested personnel's wearing portion；The first electrode, second electrode and third electrode difference
It is connect with the signal input part of the second biopotential acquisition device；The signal output end of the second biopotential acquisition device with
The signal input part of processor control unit connects.
Further, the signal acquisition unit includes Body composition analysis device；The electrode includes first electrode,
Two electrodes, third electrode and the 4th electrode；The skin contact of the first electrode and second electrode and tested personnel's wearing portion；
Skin contact other than the third electrode and the 4th electrode and tested personnel's wearing portion；The first electrode, second electrode,
Third electrode and the 4th electrode are connect with the signal input part of Body composition analysis device respectively；The Body composition analysis device
Signal output end connect with the signal input part of processor control unit.
Further, the apparatus body is fixed in wrist by frenulum；The electrode includes first electrode,
Two electrodes, third electrode and the 4th electrode；Side of the apparatus body towards wrist is arranged in the first electrode and second electrode,
It is contacted with wrist；The third electrode and the 4th electrode remove the extracarpal other body parts of hand with tested personnel and contact.
Further, the electrode includes first electrode, second electrode and third electrode；The first electrode and the second electricity
The skin contact of pole and tested personnel's wearing portion；Location contacts other than the third electrode and tested personnel's wearing portion；
Touch control unit is provided in connection line between the third electrode and biopotential acquisition device；The touch control
The signal output end of unit is connect with the signal input part of processor control unit；The third electrode and touch control unit it
Between be provided with alternative analog switch.
Further, the electrode includes first electrode and second electrode；The first electrode and second electrode and tested
The skin contact of personnel's wearing portion；Power supply is connected between the first electrode, second electrode and signal acquisition unit
Input protection unit；The power output end of the power input protection location is connect by battery charging unit with battery.
Further, the power input protection location include the first PMOS tube, the second PMOS tube, the first NMOS pipe and
Second NMOS tube；It is sequentially connected between the first electrode and battery charging unit and is provided with the first PMOS tube and the first NMOS
Pipe；The first controller is connected in first NMOS tube；First controller passes through control signal adjustment first
The switch of NMOS tube；It is sequentially connected between the second electrode and battery charging unit and is provided with the second PMOS tube and the 2nd NMOS
Pipe；Second controller is connected in second NMOS tube；The second controller passes through control signal adjustment second
The switch of NMOS tube.
Beneficial effect：A kind of wearable health detection equipment of multi-parameter based on shared electrode of the invention, including equipment
Ontology；The apparatus body includes electrode, analog switch matrix, signal acquisition unit and processor control unit；Pass through simulation
Switch matrix realizes the multiple combinations between four electrodes, and the electrode realized between multiple sensors is shared, to reduce
The electrode used therein quantity of equipment reduces the apparent size design difficulty of wearable device, improves user's usage comfort.
Detailed description of the invention
Attached drawing 1 is design of testing device architecture diagram；
Each electrode position schematic diagram when being wearing of attached drawing 2；
Attached drawing 3 is power input protection location concrete structure schematic diagram.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
A kind of wearable health detection equipment of multi-parameter based on shared electrode, as shown in Fig. 1, including apparatus body 5；
The apparatus body 5 includes electrode, simulation input protection location 9, analog switch matrix 11, signal acquisition unit 13 and processing
Device control unit 16；Wherein electrode is conductive material exposed in equipment, is used for collection of simulant signal；Electrode includes the first electricity
Pole 1, second electrode 2, third electrode 3 and the 4th electrode 4；Four electrodes are opened by simulation input protection location 9 through internal simulation
Matrix 11 is closed to connect with signal acquisition unit 13；First electrode 1 and second electrode 2 can be also multiplexed other than simulation input function to be done
Equipment charge terminal is kept apart power supply and simulation input using power input protection location 8, power input protection location 8 with
Battery charging unit 10, battery 12 are sequentially connected, and are charged to device battery, and battery charging unit 10 is the charging electricity of battery 12
Road；4th electrode 4 can concurrent multiplexing do touch electrode, each application of electrode situation is shown in Table 1.
Wherein power input protection location 8 is by power supply and analog signal isolating, as shown in Fig. 3, for each electrode
Channel uses double metal-oxide-semiconductor designs, specifically includes the first PMOS tube Q1, the second PMOS tube Q3, the first NMOS pipe Q2 and second
NMOS tube Q4；First PMOS tube Q1 is set and one-way conduction may be implemented in the second PMOS tube Q3, meets equipment charge demand, but not
It can prevent electric current from charging circuit reflux to input terminal；So joined the first NMOS of the second level again on the basis of PMOS pipe
Pipe Q2 and the second NMOS tube Q4, and connect to be provided with to connect on the first controller U1, the second NMOS tube Q4 on the first NMOS tube Q2 and set
It is equipped with second controller U2, two NMOS tube defaults are to close, but can pass through the first control when there is external power supply access
The control signal EN_Control of device U1 and second controller U2 opens two NMOS tubes, thus effective protection user；It should
Equipment by power input protection location 8 not only can effectively charge again can in signal acquisition power supply signal not reflux to input
End.
Electrode combination under the various application scenarios of table 1
The function of simulation input protection location 9 is by analog signal and other signal isolations；The simulation input protection is single
If member 9 includes dry units group；Several device components are not correspondingly arranged on the channel of each electrode；The device group includes
Isolation capacitance Ciso, first resistor Rin and second resistance Rin_ecg；The isolation capacitance Ciso and first resistor Rin series connection
Together, testing impedance channel is protected, isolation capacitance Ciso here plays the role of direct current partition, power supply can be effectively prevented
The value of influence of the voltage to acquisition access, isolation capacitance Ciso and first resistor Rin are needed according to actual circuit and target essence
Degree is to determine；If meeting medical instrument standard if necessary, it is also necessary to meet the leakage current requirement in IEC60601-1；It is described
Second resistance Rin_ecg and isolation capacitance Ciso, first resistor Rin are arranged in parallel, and Rin_ecg is the defeated of biopotential detection
Enter current-limiting resistance, for value between 100K~300K ohm, it is preposition capacitor that the reason of direct current separates Ciso_ecg is not added here
Although direct current can be separated, the common-mode rejection ratio CMRR of biopotential detection circuit can be extremely reduced, to influence detection effect
Fruit；Meanwhile can see from table 1, the reference electrode that first electrode 1 is detected as biopotential, concurrent multiplexing does equipment and fills
Positive input terminal when electric, the current-limiting resistance of such reference electrode can be unlikely to over-voltage to one access of releasing of power supply and burn device
Part.
Analog switch matrix 11 is namely based on the circuit connection logic of table 1, uses the circuit of analog switch.
Signal acquisition unit 13 includes modulus switching device (ADC) and digital analog converter part (DAC)；Modulus switching device
(ADC) for instrument/difference amplifier (Instrumentation or of biopotential acquisition device will to be acquired
DifferentialAMP) output voltage of output voltage and the current/voltage converter (TIA) of impedance detection is converted to number
Word signal；Digital-to-analogue conversion device (DAC) generates pumping signal, is used for impedance detection, for realizing Body composition analysis and skin electricity
Reaction.
Alternative analog switch 14 is for analog data acquisition or touch key-press function for selecting third electrode 3.
If having selected touch key-press function, signal will enter touch control unit 15, generate key information and control to processor
Unit 16.
Processor control unit 16 is the core control part of whole system, for controlling and handling the letter of each unit
Breath.
As shown in Fig. 2, the apparatus body 5 is worn in wrist 6 by the fixation of frenulum 7；1 He of first electrode
Side of the apparatus body 5 towards wrist 6 is arranged in second electrode 2, is bonded setting with wrist 6, the skin contact with corresponding region；
The third electrode 3 and the 4th electrode 4 are located at side of the apparatus body 5 backwards to wrist 6, and when use needs wrist at tested personnel
Other body parts (such as another hand) contact other than 6.
The wearable health test apparatus only needs to complete appointing for a variety of vital sign detections using 4 electrodes
It is engaged in, the shared electrode design between multiple sensors reduces the electrode used therein quantity of equipment, reduces the appearance of wearable device
Size design difficulty improves user's usage comfort.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of wearable health detection equipment of multi-parameter based on shared electrode, it is characterised in that：Including apparatus body (5)；
The apparatus body (5) includes electrode, analog switch matrix (11), signal acquisition unit (13) and processor control unit
(16)；The different parts of tested human body are connect by several electrodes with the signal input part of analog switch matrix (11) respectively；
The signal output end of the analog switch matrix (11) is connect with the signal input part of signal acquisition unit (13)；The signal is adopted
The signal output end of collection unit (13) is connect with the signal input part of processor control unit (16).
2. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：Simulation input protection location (9) are connected between the electrode and analog switch matrix (11)；The simulation input is protected
Unit (9) are protected if including dry units group；Several device components are not correspondingly arranged on the channel of each electrode；The device group
Including isolation capacitance, first resistor and second resistance；The isolation capacitance and first resistor are arranged in series；The second resistance with
Isolation capacitance, first resistor are arranged in parallel.
3. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The signal acquisition unit (13) includes skin potential activity acquisition device；The electrode includes first electrode (1) and second electrode
(2)；The skin contact of the first electrode (1) and second electrode (2) and tested personnel's wearing portion；The first electrode (1)
It is connect respectively with the signal input part of skin potential activity acquisition device with second electrode (2)；The letter of the skin potential activity acquisition device
Number output end is connect with the signal input part of processor control unit (16).
4. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The signal acquisition unit (13) includes the first biopotential acquisition device；The electrode includes second electrode (2) and third
Electrode (3)；The skin contact of second electrode (2) and tested personnel's wearing portion；The third electrode (3) and tested personnel
Skin contact other than wearing portion；The second electrode (2) and third electrode (3) respectively with the first biopotential acquisition device
Signal input part connection；The signal output end of the first biopotential acquisition device and the letter of processor control unit (16)
The connection of number input terminal.
5. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The signal acquisition unit (13) includes the second biopotential acquisition device；The electrode includes first electrode (1), second
Electrode (2) and third electrode (3)；The first electrode (1) and second electrode (2) and the skin of tested personnel's wearing portion connect
Touching；Skin contact other than the third electrode (3) and tested personnel's wearing portion；The first electrode (1), second electrode
(2) it is connect respectively with the signal input part of the second biopotential acquisition device with third electrode (3)；Second biopotential is adopted
The signal output end of acquisition means is connect with the signal input part of processor control unit (16).
6. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The signal acquisition unit (13) includes Body composition analysis device；The electrode includes first electrode (1), second electrode
(2), third electrode (3) and the 4th electrode (4)；The first electrode (1) and second electrode (2) and tested personnel's wearing portion
Skin contact；Skin contact other than the third electrode (3) and the 4th electrode (4) and tested personnel's wearing portion；Described
One electrode (1), second electrode (2), third electrode (3) and the 4th electrode (4) are defeated with the signal of Body composition analysis device respectively
Enter end connection；The signal output end of the Body composition analysis device and the signal input part of processor control unit (16) connect
It connects.
7. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The apparatus body (5) is fixed on wrist (6) by frenulum (7)；The electrode includes first electrode (1), second
Electrode (2), third electrode (3) and the 4th electrode (4)；The first electrode (1) and second electrode (2) are arranged in apparatus body
(5) side towards wrist (6) is contacted with wrist (6)；The third electrode (3) and the 4th electrode (4) and tested personnel remove hand
Other body parts contact other than wrist (6).
8. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The electrode includes first electrode (1), second electrode (2) and third electrode (3)；The first electrode (1) and second electrode
(2) with the skin contact of tested personnel's wearing portion；The third electrode (3) connects with the position other than tested personnel's wearing portion
Touching；Touch control unit (15) are provided in connection line between the third electrode (3) and biopotential acquisition device；Institute
The signal output end for stating touch control unit (15) is connect with the signal input part of processor control unit (16)；The third electricity
Alternative analog switch (14) are provided between pole (3) and touch control unit (15).
9. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 1, feature exist
In：The electrode includes first electrode (1) and second electrode (2)；The first electrode (1) and second electrode (2) and tested person
The skin contact of member's wearing portion；It connects and sets between the first electrode (1), second electrode (2) and signal acquisition unit (13)
It is equipped with power input protection location (8)；The power output end of the power input protection location (8) passes through battery charging unit
(10) it is connect with battery (12).
10. the wearable health detection equipment of a kind of multi-parameter based on shared electrode according to claim 9, feature exist
In：The power input protection location (8) include the first PMOS tube (Q1), the second PMOS tube (Q3), the first NMOS tube (Q2) and
Second NMOS tube (Q4)；It is sequentially connected between the first electrode (1) and battery charging unit (10) and is provided with the first PMOS tube
(Q1) and the first NMOS tube (Q2)；The first controller (U1) is connected on first NMOS tube (Q2)；First control
The switch that device (U1) processed passes through control signal adjustment the first NMOS tube (Q2)；The second electrode (2) and battery charging unit
(10) it is sequentially connected between and is provided with the second PMOS tube (Q3) and the second NMOS tube (Q4)；It is connected on second NMOS tube (Q4)
It is provided with second controller (U2)；The switch that the second controller (U2) passes through control signal adjustment the second NMOS tube (Q4).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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