CN114699082A - Flexible wearable surface electromyography sensor - Google Patents
Flexible wearable surface electromyography sensor Download PDFInfo
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- CN114699082A CN114699082A CN202210425599.8A CN202210425599A CN114699082A CN 114699082 A CN114699082 A CN 114699082A CN 202210425599 A CN202210425599 A CN 202210425599A CN 114699082 A CN114699082 A CN 114699082A
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Abstract
The present disclosure provides a flexible wearable surface electromyography sensor, including: first sensing portion, second sensing portion and flesh electric circuit, the first magnetoelectric compound interface of first sensing portion configuration and the second magnetoelectric compound interface of second sensing portion configuration splice each other, the flesh electric circuit with first magnetoelectric compound interface with the compound interface electricity of second magnetoelectric is connected. The first sensing part is provided with five data acquisition channels, the second sensing part is provided with three data acquisition channels, and each data acquisition channel is respectively provided with two electrode differential inputs.
Description
Technical Field
The present disclosure relates to the field of biomedicine, and in particular, to a flexible wearable surface electromyography sensor.
Background
With the development of the intelligent control field, a natural human-computer interaction mode conforming to human habits gradually becomes a hot point of research of people. The gesture is an important interaction mode by virtue of the characteristics of intuition, convenience, flexibility and the like.
The gesture recognition accuracy rate in the current human-computer interaction wearable gesture recognition system is not ideal, and the specific reason is as follows:
(1) when people with different arm circumferences wear the system, the electromyographic signals of the whole circle of arm circumference cannot be acquired, so that the signal acquisition is incomplete;
(2) the electromyographic sensors used for acquiring electromyographic signals in the system are rigid structures, each electromyographic sensor unit cannot be attached to the skin, the impedance between the skin and electrodes is large, and the signal-to-noise ratio is low;
(3) the electromyographic sensor electrode mainly adopts a dry electrode or a wet electrode. The wet electrode has good conductivity and mature process, but is easy to dry and cannot be used for a long time, and the dry electrode has certain damage to the skin and is not accepted by most patients;
(4) signals acquired by the electromyographic sensor need to transmit data to a PC (personal computer) end or other equipment in a wired or wireless mode for data analysis, and the data cannot be directly analyzed in situ and gesture actions of a wearer can be determined after the data are acquired.
Disclosure of Invention
Technical problem to be solved
The present disclosure provides a flexible wearable surface electromyography sensor to solve the technical problems set forth above.
(II) technical scheme
According to an aspect of the present disclosure, there is provided a flexible wearable surface electromyography sensor, including:
the first sensing part is provided with five data acquisition channels, and each data acquisition channel is respectively provided with two electrode differential inputs; one end of the first sensing part is provided with a first magnetoelectric composite interface;
the second sensing part is provided with three data acquisition channels; one end of the second sensing part is provided with a second magnetoelectric composite interface, and the second magnetoelectric composite interface and the first magnetoelectric composite interface are spliced with each other;
and the electromyographic circuit is electrically connected with the first magnetoelectric composite interface and the second magnetoelectric composite interface.
In some embodiments of the present disclosure, the first sensing part includes:
the first sensing module is provided with a first data acquisition channel first electrode, a first data acquisition channel second electrode, a second data acquisition channel first electrode, a second data acquisition channel second electrode, a third data acquisition channel first electrode and a third data acquisition channel second electrode in a distributed manner;
one end of the first sensing unit is connected with the first data acquisition channel first electrode, the first data acquisition channel second electrode, the second data acquisition channel first electrode, the second data acquisition channel second electrode, the third data acquisition channel first electrode and the third data acquisition channel second electrode through leads; the other end of the first sensing unit is provided with a first magnetoelectric composite interface; the first sensing unit is provided with a fourth data acquisition channel first electrode, a fourth data acquisition channel second electrode, a fifth data acquisition channel first electrode and a fifth data acquisition channel second electrode in a distributed mode.
In some embodiments of the present disclosure, the second sensing part includes:
one end of the second sensing unit is provided with a second magnetoelectric composite interface, and the second sensing unit is electrically connected with the first magnetoelectric composite interface through the electromyographic circuit; the second sensing units are distributed with a sixth data acquisition channel first electrode, a sixth data acquisition channel second electrode, a seventh data acquisition channel first electrode and a seventh data acquisition channel second electrode;
and the second sensing module is provided with an eighth data acquisition channel first electrode and an eighth data acquisition channel second electrode which are connected with the sixth data acquisition channel first electrode, the sixth data acquisition channel second electrode, the seventh data acquisition channel first electrode and the seventh data acquisition channel second electrode through leads.
In some embodiments of the present disclosure, the first sensing unit includes:
one end of the first connecting module is connected with the first data acquisition channel first electrode, the first data acquisition channel second electrode, the second data acquisition channel first electrode, the second data acquisition channel second electrode, the third data acquisition channel first electrode and the third data acquisition channel second electrode through leads;
one end of the third sensing module is connected with the other end of the first connecting module; the third sensing module is provided with the fourth data acquisition channel first electrode, the fourth data acquisition channel second electrode, the fifth data acquisition channel first electrode and the fifth data acquisition channel second electrode in a distributed manner;
the second connection module, second connection module one end with fourth data acquisition passageway first electrode, fourth data acquisition passageway second electrode, fifth data acquisition passageway first electrode with fifth data acquisition passageway second electrode passes through the wire and connects, the second connection module other end configuration first magnetoelectric composite interface.
In some embodiments of the present disclosure, the second sensing unit includes:
a second magnetoelectric composite interface is configured at one end of the third connecting module, and the third connecting module is electrically connected with the first magnetoelectric composite interface through the electromyographic circuit;
the sixth data acquisition channel first electrode, the sixth data acquisition channel second electrode, the seventh data acquisition channel first electrode and the seventh data acquisition channel second electrode which are distributed in the fourth sensing module are connected with the other end of the third connecting module through leads;
and one end of the fourth connecting module is connected with the fourth sensing module, and the other end of the fourth connecting module is connected with the first electrode of the eighth data acquisition channel and the second electrode of the eighth data acquisition channel through a lead.
In some embodiments of the present disclosure, the first sensing unit and the second sensing unit are symmetrically disposed with respect to the electromyography circuit.
In some embodiments of the present disclosure, the second sensing module further comprises:
and the right leg driving electrode is connected with the other end of the fourth connecting module through a lead.
In some embodiments of the present disclosure, the first sensing module, the first connecting module, the third sensing module and the second connecting module are connected by silver paste.
In some embodiments of the present disclosure, the third connecting module, the fourth sensing module, the fourth connecting module and the second sensing module are connected by silver paste.
In some embodiments of the present disclosure, an STM32 chip is integrated in the electromyography circuit.
(III) advantageous effects
According to the technical scheme, the flexible wearable surface electromyography sensor has at least one or part of the following beneficial effects:
(1) according to the self-alignment type electromyography circuit, a magnetoelectric composite connection mode is adopted among the first sensing part, the second sensing part and the electromyography circuit, so that self-alignment, reversible connection and stable data transmission are realized.
(2) Set up a plurality of connection module in this disclosure and realize that length is variable, and adopt extending structure for when the people of different arm circumferences wear, all can gather the flesh electrical signal of the flesh electricity of whole round arm circumference.
(3) After data acquisition is realized by integrating an STM32 chip in the electromyography circuit, the data is directly analyzed in situ and the gesture action of a wearer is determined without data transmission between a sensor and a PC (personal computer) end or other equipment.
(4) According to the myoelectric sensor, the first flexible sensing part and the second flexible sensing part are processed by adopting a screen printing process, so that the shape of the sensor can be changed according to the shape of the skin, and each myoelectric sensor unit is attached to the skin.
Drawings
Fig. 1 is a schematic structural diagram of a flexible wearable surface electromyography sensor according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of the first sensing portion in fig. 1.
Fig. 3 is a schematic structural diagram of the second sensing portion in fig. 1.
Fig. 4 is a schematic structural diagram of the first sensing module in fig. 2.
Fig. 5 is a schematic structural diagram of the third sensing module in fig. 2.
Fig. 6 is a schematic structural diagram of the fourth sensing module in fig. 3.
Fig. 7 is a schematic structural diagram of the second sensing module in fig. 3.
FIG. 8 is a flow chart of information processing in the electromyography circuit.
[ description of main reference numerals in the drawings ] of the embodiments of the present disclosure
1000-a first sensing portion;
1100-a first sensing module;
1110 — a first data acquisition channel first electrode;
1120-first data acquisition channel second electrode;
1130 — a second data acquisition channel first electrode;
1140-a second data acquisition channel second electrode;
1150-third data acquisition channel first electrode;
1160-third data acquisition channel second electrode;
1170-temperature sensing submodule;
1200-a first sensing unit;
1210-a first connection module;
1220-a third sensing module;
1221-a fourth data acquisition channel first electrode;
1222-a fourth data acquisition channel second electrode;
1223-a fifth data acquisition channel first electrode;
1224-fifth data acquisition channel second electrode;
1230-a second connection module;
2000-second sensing portion;
2100-a second sensing unit;
2110-third connection module;
2120-a fourth sensing module;
2121-a sixth data acquisition channel first electrode;
2122-a sixth data acquisition channel second electrode;
2123-a seventh data acquisition channel first electrode;
2124-a seventh data acquisition channel second electrode;
2130-a fourth connecting module;
2200-a second sensing module;
2210-an eighth data acquisition channel first electrode;
2220-eighth data acquisition channel second electrode;
2230-right leg drive electrode;
2240-a blood oxygen sensing sub-module;
3000-myoelectric circuit;
Detailed Description
The present disclosure provides a flexible wearable surface electromyography sensor, including: first sensing portion, second sensing portion and flesh electric circuit, the first magnetoelectric compound interface of configuration of first sensing portion configuration and the second magnetoelectric compound interface of second sensing portion configuration splice each other, the flesh electric circuit with first magnetoelectric compound interface with the compound interface electricity of second magnetoelectric is connected. The first sensing part is provided with five data acquisition channels, the second sensing part is provided with three data acquisition channels, and each data acquisition channel is respectively provided with two electrode differential inputs.
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
Certain embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the disclosure are shown. Indeed, various embodiments of the disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In a first exemplary embodiment of the present disclosure, a flexible wearable surface electromyography sensor is provided. Fig. 1 is a schematic view of a flexible wearable surface electromyography sensor according to an embodiment of the present disclosure. Fig. 2 is a schematic structural diagram of the first sensing portion in fig. 1. Fig. 3 is a schematic structural diagram of the second sensing portion in fig. 1.
As shown in fig. 1 to 3, the present disclosure provides a flexible wearable surface electromyography sensor, including: the sensing device comprises a first sensing part 1000, a second sensing part 2000 and a myoelectric circuit 3000, wherein a first magnetoelectric composite interface configured on the first sensing part 1000 and a second magnetoelectric composite interface configured on the second sensing part 2000 are spliced with each other, and the myoelectric circuit 3000 is electrically connected with the first magnetoelectric composite interface and the second magnetoelectric composite interface. The first sensing part 1000 is configured with five data acquisition channels, the second sensing part 2000 is configured with three data acquisition channels, and each data acquisition channel is configured with two electrode differential inputs. The material for the electrodes may be a mixture of silver, silver nanowires, and polyborosiloxane, which is generated by reacting PDMS with boric acid.
In one embodiment of the present disclosure, the first sensing part 1000 includes: a first sensing module 1100 and a first sensing unit 1200. The second sensing section 2000 includes: a second sensing unit 2100 and a second sensing module 2200. In a preferred embodiment, the first sensing unit 1200 and the second sensing unit 2100 may be symmetrically disposed with respect to the electromyographic circuit 3000.
Fig. 4 is a schematic structural diagram of the first sensing module in fig. 2. Fig. 5 is a schematic structural diagram of the third sensing module in fig. 2. Fig. 6 is a schematic structural diagram of the second sensing module 2200 in fig. 3. Referring again to fig. 4 to 7, the first sensing module 1100, the first sensing unit 1200, the second sensing unit 2100 and the second sensing module 2200 will be described in detail.
The first sensing module 1100 is provided with a first data acquisition channel first electrode 1110, a first data acquisition channel second electrode 1120, a second data acquisition channel first electrode 1130, a second data acquisition channel second electrode 1140, a third data acquisition channel first electrode 1150, a third data acquisition channel second electrode 1160 and a temperature sensing submodule 1170 in a distributed manner;
one end of the first sensing unit 1200 is connected with the first data acquisition channel first electrode 1110, the first data acquisition channel second electrode 1120, the second data acquisition channel first electrode 1130, the second data acquisition channel second electrode 1140, the third data acquisition channel first electrode 1150, the third data acquisition channel second electrode 1160 and the temperature sensing submodule 1170 through conducting wires; the other end of the first sensing unit 1200 is configured with a first magnetoelectric composite interface; the first sensing unit 1200 is disposed with a fourth data acquisition channel first electrode 1221, a fourth data acquisition channel second electrode 1222, a fifth data acquisition channel first electrode 1223, and a fifth data acquisition channel second electrode 1224.
A second magnetoelectric composite interface is configured at one end of the second sensing unit 2100, and is electrically connected with the first magnetoelectric composite interface through an electromyographic circuit 3000; the second sensing unit 2100 is provided with a sixth data acquisition channel first electrode 2121, a sixth data acquisition channel second electrode 2122, a seventh data acquisition channel first electrode 2123, and a seventh data acquisition channel second electrode 2124 in a distributed manner;
the second sensing module 2200 is configured such that the eighth data acquisition channel first electrode 2210 and the eighth data acquisition channel second electrode 2220 are connected to the sixth data acquisition channel first electrode 2121, the sixth data acquisition channel second electrode 2122, the seventh data acquisition channel first electrode 2123, and the seventh data acquisition channel second electrode 2124 via wires.
Further, in one embodiment, the first sensing unit 1200 includes: a first connecting module 1210, a third sensing module 1220 and a second connecting module 1230. One end of the first connection module 1210 is connected to the first data acquisition channel first electrode 1110, the first data acquisition channel second electrode 1120, the second data acquisition channel first electrode 1130, the second data acquisition channel second electrode 1140, the third data acquisition channel first electrode 1150, the third data acquisition channel second electrode 1160 and the temperature sensing sub-module 1170 by wires. One end of the third sensing module 1220 is connected to the other end of the first connecting module 1210; the third sensing module 1220 is disposed with a fourth data acquisition channel first electrode 1221, a fourth data acquisition channel second electrode 1222, a fifth data acquisition channel first electrode 1223, and a fifth data acquisition channel second electrode 1224. One end of the second connection module 1230 is connected to the fourth data acquisition channel first electrode 1221, the fourth data acquisition channel second electrode 1222, the fifth data acquisition channel first electrode 1223, and the fifth data acquisition channel second electrode 1224 through wires, and the other end of the second connection module 1230 is configured with a first magnetoelectric composite interface. Specifically, the first sensing module 1100, the first connection module 1210, the third sensing module 1220 and the second connection module 1230 are connected through silver paste.
Further, in one embodiment, the second sensing unit 2100 symmetrically disposed with the first sensing unit 1200 includes: a third connection module 2110, a fourth sensing module 2120, and a fourth connection module 2130. The structure of the third connection module 2110 is the same as that of the second connection module 1230 in the first sensing unit 1200. The structure of the fourth sensing module 2120 is the same as that of the third sensing module 1220 in the first sensing unit 1200, please refer to fig. 5. The fourth connection module 2130 has the same structure as the first connection module 1210 of the first sensing unit 1200. One end of the third connection module 2110 is configured with a second magnetoelectric composite interface, and is electrically connected with the first magnetoelectric composite interface through the electromyographic circuit 3000. The sixth data acquisition channel first electrode 2121, the sixth data acquisition channel second electrode 2122, the seventh data acquisition channel first electrode 2123 and the seventh data acquisition channel second electrode 2124, which are distributed in the fourth sensing module 2120, are connected to the other end of the third connecting module 2110 through a conducting wire. One end of the fourth connecting module 2130 is connected to the fourth sensing module 2120, and the other end of the fourth connecting module 2130 is connected to the eighth data acquisition channel first electrode 2210 and the eighth data acquisition channel second electrode 2220 via wires. Specifically, the third connection module 2110, the fourth sensing module 2120, the fourth connection module 2130 and the second sensing module 2200 are connected by silver paste.
In one embodiment of the present disclosure, the second sensing module 2200 further includes: right leg driver electrode 2230 and blood oxygen sensing sub-module 2240. The right leg driving electrode 2230 is connected to the other end of the fourth connecting module 2130 through a lead, and is used as a reference electrode.
Fig. 7 is a flowchart of information processing in the myoelectric circuit 3000. As shown in fig. 7, the electromyogram circuit 3000 integrates an ADS1298 chip, an STM32 chip, and an nRF52832 chip. The ADS1298 chip is used for collecting electrical signals of the electromyographic circuit 3000. The STM32 chip is used for data preprocessing, feature extraction and pattern recognition of the electromyography circuit 3000, effective data of an active section part in original data is intercepted through the data preprocessing, then time domain features of the data are extracted to form feature vectors, and finally a gesture recognition result is obtained by utilizing an SVM pattern recognition method. The STM32 chip sends the gesture recognition result to the mobile phone end or the PC end in the form of Bluetooth through the nRF52832 chip.
The first, second, third, and fourth sensing modules 1100, 2200, 1220, and 2120 are identical in structure. Taking the third sensing module 1220 as an example, the method includes: the ultraviolet curing ink comprises a first ultraviolet curing insulating ink layer, a silver paste layer and a second ultraviolet curing insulating ink layer. The first uv cured insulating ink layer distribution includes a fourth data acquisition channel first electrode 1221, a fourth data acquisition channel second electrode 1222, a fifth data acquisition channel first electrode 1223, and a fifth data acquisition channel second electrode 1224 as shown in the figure. The silver paste layer is respectively arranged on the first ultraviolet curing insulating ink layer and comprises a fourth data acquisition channel first electrode 1221, a fourth data acquisition channel second electrode 1222, a fifth data acquisition channel first electrode 1223 and a fifth data acquisition channel second electrode 1224 which are shown in the figure. The second ultraviolet curing insulating ink layer is arranged on the silver paste layer, and the silver paste layers of the fourth data acquisition channel first electrode 1221, the fourth data acquisition channel second electrode 1222, the fifth data acquisition channel first electrode 1223 and the fifth data acquisition channel second electrode 1224 are exposed. The structures and manufacturing methods of the first sensing module 1100, the second sensing module 2200 and the fourth sensing module 2120 are the same as those of the third sensing module 1220, and are not repeated.
In one embodiment provided by the present disclosure, each module of the flexible wearable surface electromyography sensor is firstly printed on a glass sheet with PDMS in a manner of a first ultraviolet curing insulating ink layer, a silver paste layer, and a second ultraviolet curing insulating ink layer by means of screen printing. The printed modules are transferred to non-woven fabric coated with adhesive silica gel in advance through a water-soluble adhesive tape, the modules in the second sensing part 2000 on the left half part of the surface electromyography sensor are connected through silver paste, the modules in the first sensing part 1000 on the right half part of the flexible wearable surface electromyography sensor are connected through silver paste, then the first sensing part 1000 and the second sensing part 2000 are spliced, a magnet is connected with the electromyography circuit 3000 through silver paste, and the flexible wearable surface electromyography sensor is manufactured.
Then mixing the silver nanowires, the silver and the polyborosiloxane in a ratio of 1: 1.5: 2.5 to prepare an electrode material, and adhering the electrode material to the surfaces of preset positions of two electrodes in each channel in the flexible wearable surface electromyography sensor.
And finally, welding to complete the electromyographic circuit, and connecting the electromyographic circuit with the connecting part of the flexible wearable surface electromyographic sensor through silver paste to connect a magnet.
The manufactured flexible wearable surface electromyography sensor with the electrode material is attached to an arm, an electromyography circuit is connected with the electromyography circuit through a magnet, an electromyography circuit switch is turned on, and a hand makes a motion, so that the gesture motion of a wearer can be recognized.
So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. In addition, the above definitions of the various elements and methods are not limited to the specific structures, shapes or modes of operation set forth in the examples, which may be readily modified or substituted by those of ordinary skill in the art.
It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure.
And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various disclosed aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, disclosed aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this disclosure.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A flexible wearable surface electromyography sensor, comprising:
the sensing device comprises a first sensing part, a second sensing part and a third sensing part, wherein the first sensing part is provided with five data acquisition channels, and each data acquisition channel is respectively provided with two electrode differential inputs; one end of the first sensing part is provided with a first magnetoelectric composite interface;
the second sensing part is provided with three data acquisition channels; one end of the second sensing part is provided with a second magnetoelectric composite interface, and the second magnetoelectric composite interface and the first magnetoelectric composite interface are spliced with each other;
and the electromyographic circuit is electrically connected with the first magnetoelectric composite interface and the second magnetoelectric composite interface.
2. The flexible wearable surface electromyography sensor of claim 1, wherein the first sensing portion comprises:
the first sensing module is provided with a first data acquisition channel first electrode, a first data acquisition channel second electrode, a second data acquisition channel first electrode, a second data acquisition channel second electrode, a third data acquisition channel first electrode and a third data acquisition channel second electrode in a distributed manner;
one end of the first sensing unit is connected with the first data acquisition channel first electrode, the first data acquisition channel second electrode, the second data acquisition channel first electrode, the second data acquisition channel second electrode, the third data acquisition channel first electrode and the third data acquisition channel second electrode through leads; the other end of the first sensing unit is provided with a first magnetoelectric composite interface; the first sensing unit is provided with a fourth data acquisition channel first electrode, a fourth data acquisition channel second electrode, a fifth data acquisition channel first electrode and a fifth data acquisition channel second electrode in a distributed mode.
3. The flexible wearable surface electromyography sensor of claim 2, wherein the second sensing portion comprises:
one end of the second sensing unit is provided with a second magnetoelectric composite interface, and the second sensing unit is electrically connected with the first magnetoelectric composite interface through the electromyographic circuit; the second sensing unit is provided with a sixth data acquisition channel first electrode, a sixth data acquisition channel second electrode, a seventh data acquisition channel first electrode and a seventh data acquisition channel second electrode in a distributed manner;
and the second sensing module is provided with an eighth data acquisition channel first electrode and an eighth data acquisition channel second electrode which are connected with the sixth data acquisition channel first electrode, the sixth data acquisition channel second electrode, the seventh data acquisition channel first electrode and the seventh data acquisition channel second electrode through leads.
4. The flexible wearable surface electromyography sensor of claim 2, wherein the first sensing unit comprises:
one end of the first connecting module is connected with the first data acquisition channel first electrode, the first data acquisition channel second electrode, the second data acquisition channel first electrode, the second data acquisition channel second electrode, the third data acquisition channel first electrode and the third data acquisition channel second electrode through leads;
one end of the third sensing module is connected with the other end of the first connecting module; the third sensing modules are distributed and provided with the fourth data acquisition channel first electrode, the fourth data acquisition channel second electrode, the fifth data acquisition channel first electrode and the fifth data acquisition channel second electrode;
the second connection module, second connection module one end with fourth data acquisition passageway first electrode, fourth data acquisition passageway second electrode, fifth data acquisition passageway first electrode with fifth data acquisition passageway second electrode passes through the wire and connects, the second connection module other end configuration first magnetoelectric composite interface.
5. The flexible wearable surface electromyography sensor of claim 3, wherein the second sensing unit comprises:
a second magnetoelectric composite interface is configured at one end of the third connecting module, and the third connecting module is electrically connected with the first magnetoelectric composite interface through the electromyographic circuit;
the sixth data acquisition channel first electrode, the sixth data acquisition channel second electrode, the seventh data acquisition channel first electrode and the seventh data acquisition channel second electrode which are distributed in the fourth sensing module are connected with the other end of the third connecting module through leads;
and one end of the fourth connecting module is connected with the fourth sensing module, and the other end of the fourth connecting module is connected with the first electrode of the eighth data acquisition channel and the second electrode of the eighth data acquisition channel through leads.
6. The flexible wearable surface electromyography sensor of claim 3, wherein the first and second sensing units are symmetrically disposed with respect to the electromyography circuit.
7. The flexible wearable surface electromyography sensor of claim 5, wherein the second sensing module further comprises:
and the right leg driving electrode is connected with the other end of the fourth connecting module through a lead.
8. The flexible wearable surface electromyography sensor of claim 4, wherein the first sensing module, the first connection module, the third sensing module, and the second connection module are connected by silver paste.
9. The flexible wearable surface electromyography sensor of claim 5, wherein the third connection module, the fourth sensing module, the fourth connection module, and the second sensing module are connected by silver paste.
10. The flexible wearable surface electromyography sensor of any of claims 1-9, wherein an STM32 chip is integrated into the electromyography circuit.
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