CN211862801U - Electromyographic signal collector and system - Google Patents
Electromyographic signal collector and system Download PDFInfo
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- CN211862801U CN211862801U CN201922183211.4U CN201922183211U CN211862801U CN 211862801 U CN211862801 U CN 211862801U CN 201922183211 U CN201922183211 U CN 201922183211U CN 211862801 U CN211862801 U CN 211862801U
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Abstract
The embodiment of the utility model provides an electromyographic signal collector and a system, the electromyographic signal collector comprises a fabric electrode sensor, a simulation front end and a control module, the fabric electrode sensor comprises a plurality of fabric electrodes, the simulation front end comprises a plurality of differential signal collecting circuits and a driving circuit, the differential signal collecting circuit comprises a front end filter circuit, the fabric electrode sensor is connected with the front end filter circuit, the simulation front end is connected with the control module, after a plurality of fabric electrodes included in the electromyographic signal collector are contacted with a human body, the electromyographic signal is collected through the fabric electrodes, and the myoelectric signal is processed by the analog front end to obtain an output signal, thus, the fabric electrode sensor is in good contact with the skin, comfortable and washable, so that the myoelectric signal collector is portable, small and easy to wear.
Description
Technical Field
The utility model relates to the field of electronic technology, concretely relates to flesh electrical signal collector and system.
Background
Surface electromyography (sEMG) is an electrical signal that accompanies muscle contraction, and is an important method for non-invasive detection of muscle activity on the body surface. At present, in the technical field of surface electromyogram acquisition, metal electrodes or gel electrodes are mostly adopted as electrodes, the quality of the contact between the electrodes and the skin of a human body and the size of contact impedance directly influence the quality of surface electromyogram signal acquisition. The metal electrode has good conductivity, but is not in close contact with the skin, and can move, so that the contact impedance is increased, the acquisition of high-quality signals is directly influenced, and the metal can cause skin scratches and allergy. The gel electrode has good fitting performance with the skin, but the gel electrode is a consumable product, cannot be used for a second time after being used up, and is easy to fall off after being pasted for a long time. The gel electrode has a large volume and is not suitable for attaching a large number of electrodes to arms.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an flesh electrical signal collector and system, through adopting the fabric as the sensor of gathering flesh electrical signal, fabric electrode sensor is good, comfortable, washable with skin contact for the portable small and exquisite easy wearing of flesh electrical signal collector.
A first aspect of an embodiment of the present invention provides an electromyographic signal collector, comprising a fabric electrode sensor, an analog front end, and a control module, wherein,
the fabric electrode sensor comprises a plurality of fabric electrodes, the analog front end comprises a plurality of differential signal acquisition circuits and a driving circuit, and the differential signal acquisition circuits comprise front end filter circuits;
the fabric electrode sensor is connected with the front end filter circuit, the simulation front end is connected with the control module, and the control module is wirelessly connected with the electronic equipment.
Optionally, the fabric electrode sensor is connected to the electromyographic signal collector through a connection line, the plurality of fabric electrodes include a driving electrode and more than 2 input electrodes, and the driving electrode is disposed on the electromyographic signal collector.
Optionally, the fabric electrode sensor further comprises an electrode fixing cloth, a plurality of sponges, an isolating cloth, a conductive fabric, an elastic band buckle, a connecting line and a connecting line interface, wherein,
each input electrode is sleeved on one sponge, each fabric electrode comprises a small hole, and the small holes are used for being connected with connecting wires; the plurality of input electrodes are distributed on the electrode fixing cloth, and a preset distance is reserved between any two adjacent fabric electrodes;
the electrode fixing cloth, the isolation cloth and the conductive fabric are fixedly arranged on the elastic belt, the isolation cloth is fixedly arranged between the electrode fixing cloth and the conductive fabric, the elastic belt buckle is fixed on the elastic belt, and the connecting wire is welded on the connecting wire interface.
Optionally, each of the plurality of differential signal acquisition circuits includes a front-end filter, an electromagnetic Interference (EMI) filter, a Programmable Gain Amplifier (PGA), and an Analog-to-Digital Converter (ADC), an input end of the front-end filter is connected to a pair of fabric electrodes, an output end of the front-end filter is connected to an input end of the EMI filter, an output end of the EMI filter is connected to an input end of the PGA, an output end of the PGA is connected to one end of the ADC, and another end of the ADC is connected to the control module.
Optionally, the driving circuit includes a shielding driving circuit and a right leg driving circuit, one end of the right leg driving circuit is connected to the shielding driving circuit, and the other end of the right leg driving circuit is connected to the driving electrode.
Optionally, the control module includes a control unit, a gyroscope, a wireless transmission module and a power module, the power module is configured to supply power to the analog front end and the control module, and the power module, the wireless transmission module and the gyroscope are respectively connected to the control unit.
Optionally, the control unit includes a single chip microcomputer, and the wireless transmission module includes a WIFI processing unit and a WIFI matching circuit; the control module also comprises a voltage acquisition circuit, a flash memory, a reset circuit, a crystal oscillator circuit, an LED indicating circuit and a key module; wherein the content of the first and second substances,
the wireless transmission module, the voltage acquisition circuit, the flash memory, the reset circuit, the crystal oscillator circuit, the LED indicating circuit and the key module are respectively connected with the single chip microcomputer, and the WIFI processing unit is connected with the WIFI matching circuit.
Optionally, the power module includes a battery, a protection circuit, a battery management module, and a voltage stabilizing circuit, wherein an output terminal of the battery is connected to an input terminal of the protection circuit, an output terminal of the protection circuit is connected to an input terminal of the battery management module, an input terminal of the battery is connected to an output terminal of the battery management module, and an input terminal of the voltage stabilizing circuit is connected to an output terminal of the battery management module.
The utility model discloses the second aspect of the embodiment provides an electromyographic signal acquisition system, electromyographic signal acquisition system includes at least one as the first aspect electromyographic signal collector and electronic equipment, each electromyographic signal collector in at least one electromyographic signal collector with carry out wireless connection between the electronic equipment.
Implement the embodiment of the utility model provides a, following beneficial effect has at least:
it can be seen that, with the electromyographic signal collector and system according to the embodiments of the present invention, the electromyographic signal collector comprises a fabric electrode sensor, a simulation front end and a control module, the fabric electrode sensor comprises a plurality of fabric electrodes, the simulation front end comprises a plurality of differential signal collecting circuits and a driving circuit, the differential signal collecting circuit comprises a front end filter circuit, the fabric electrode sensor is connected with the front end filter circuit, the simulation front end is connected with the control module, after a plurality of fabric electrodes included in the electromyographic signal collector are contacted with a human body, the electromyographic signal is collected through the fabric electrodes, and the myoelectric signal is processed by the analog front end to obtain an output signal, thus, the fabric electrode sensor is in good contact with the skin, comfortable and washable, so that the myoelectric signal collector is portable, small and easy to wear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1A is a schematic structural diagram of an electromyographic signal collector provided in an embodiment of the present invention;
fig. 1B is a schematic product diagram of a fabric electrode sensor according to an embodiment of the present invention;
fig. 1C is a schematic diagram illustrating a fabric electrode sensor and a myoelectric signal collector connected by a connecting wire according to an embodiment of the present invention;
fig. 1D is an exploded schematic view of a fabric electrode sensor according to an embodiment of the present invention;
fig. 1E is a schematic structural diagram of an analog front end according to an embodiment of the present invention;
fig. 1F is a schematic structural diagram of another electromyographic signal collector provided in the embodiment of the present invention;
fig. 1G is a schematic structural diagram of another electromyographic signal collector provided in the embodiment of the present invention;
fig. 1H is a schematic structural diagram of another electromyographic signal collector provided in the embodiment of the present invention;
fig. 1I is a schematic diagram of another electromyographic signal collector provided in an embodiment of the present invention;
fig. 2 is a scene schematic diagram of the embodiment of the present invention for collecting the electromyographic signals by the electromyographic signal collector;
fig. 3 is a schematic structural diagram of an electromyographic signal acquisition system provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the described embodiments of the invention can be combined with other embodiments.
Referring to fig. 1A, fig. 1A is a schematic structural diagram of an electromyographic signal collector according to an embodiment of the present invention, the electromyographic signal collector includes a fabric electrode sensor 101, an analog front end 102, and a control module 103, wherein,
the fabric electrode sensor 101 comprises a plurality of fabric electrodes, the analog front end 102 comprises a plurality of differential signal acquisition circuits and a driving circuit, and the differential signal acquisition circuits comprise a front end filter circuit;
the fabric electrode sensor 101 is connected to the front end filter circuit, and the analog front end 102 is connected to the control module 103.
Wherein, above-mentioned front end filter circuit includes the front end filter, and the front end filter is used for solving the frequency spectrum aliasing phenomenon that the flesh electricity signal acquisition in-process appears, and the front end filter specifically can include low pass filter, high pass filter or trapper etc. the embodiment of the utility model provides a do not do the restriction.
In the embodiment of the utility model, the fabric is used as the sensor for collecting the electromyographic signals, wireless connection is carried out between the control module 103 and the electronic equipment, and the control module 103 receives the signal collecting instruction sent by the electronic equipment; the fabric electrode sensor 101 collects myoelectric signals, the simulation front end 102 processes the myoelectric signals to obtain output signals, and the control module 103 sends the output signals to the electronic equipment, wherein the fabric electrode sensor is in good contact with skin, comfortable and washable, so that the myoelectric signal collector is portable, small and easy to wear.
Optionally, the fabric electrode sensor is connected to the electromyographic signal collector through a connection line, the plurality of fabric electrodes include a driving electrode and more than 2 input electrodes, and the driving electrode is disposed on the electromyographic signal collector.
The electromyographic signal collector comprises an analog front end and a control module, wherein the analog front end and the control module can be integrated on the electromyographic signal collector, and the fabric electrode sensor is connected to the electromyographic signal collector in a fabric electrode belt mode.
Referring to fig. 1B, fig. 1B is a schematic diagram of a fabric electrode sensor according to an embodiment of the present invention. The fabric electrode sensor 101 can be connected with the electromyographic signal collector through a connecting wire 11, and the fabric electrode sensor 101 comprises a plurality of input electrodes 12.
Referring to fig. 1C, fig. 1C is a schematic diagram illustrating a connection between a fabric electrode sensor 101 and an electromyographic signal collector 1000 through a connection line, where the fabric electrode sensor 101 may include 16 input electrodes 12, the 16 input electrodes 12 are led out through the connection line with a shield and connected to a connection line interface, the fabric electrode sensor 101 may be fixed on an arm by adhesion, the 16 input electrodes contact with skin on the surface of the arm, and the connection line 11 interface is connected to the electromyographic signal collector 1000.
The shape of the fabric electrode may be, for example, a circle, a rectangle, or other shapes, and embodiments of the present invention are not limited thereto.
Optionally, the fabric electrode sensor of the present invention may include 16 input electrodes, 8 input electrodes, 20 input electrodes, and the like, which are not limited in the embodiments of the present invention.
Optionally, the fabric electrode sensor further comprises an electrode fixing cloth, a plurality of sponges, an isolating cloth, a conductive fabric, an elastic band buckle, a connecting line and a connecting line interface, wherein,
each input electrode is sleeved on one sponge, and each input electrode comprises a small hole which is used for being connected with a connecting wire; the plurality of input electrodes are distributed on the electrode fixing cloth, and a preset distance is reserved between any two adjacent input electrodes;
the electrode fixing cloth, the isolation cloth and the conductive fabric are fixedly arranged on the elastic belt, the isolation cloth is fixedly arranged between the electrode fixing cloth and the conductive fabric, the elastic belt buckle is fixed on the elastic belt, and the connecting wire is welded on the connecting wire interface.
As shown in fig. 1D, fig. 1D is an exploded schematic view of a fabric electrode sensor according to an embodiment of the present invention. The fabric electrode sensor is in the form of a fabric electrode belt, and may include 8 components, which are an electrode fixing cloth 10, an input electrode 20, a sponge 30, an isolation cloth 40, a conductive fabric 50, an elastic belt 60, an elastic belt buckle 70, and a connection line 80. The input electrode 20 is sleeved on the sponge 30, the small hole on the input electrode 20 can be used for connecting a connecting wire with the input electrode, and the eyelet can not be welded on the fabric, so that the eyelet of the input electrode 20 can be punched by using the eyelet, and the connecting wire is welded on the eyelet to be conducted. The input electrodes 20 and the sponge are fixed on the electrode fixing cloth 10, wherein every two adjacent input electrodes are equidistant, so that a contact short circuit can be prevented. After the electrode fixing cloth 10, the input electrode 20 and the sponge 30 are fixed, the isolating cloth 40 can be sewn on to isolate the conductive fabric 50, and the conductive fabric 50 can be used for shielding to prevent external interference. After the electrode fixing cloth 10, the input electrode 20, the sponge 30, the isolation cloth 40 and the conductive fabric 50 are sewn, the sewn semi-finished product is fixedly sewn on the elastic belt, then the elastic belt buckle is sewn, and the connecting wire 80 is welded on the connecting wire interface, so that a complete fabric electrode belt can be obtained, and the fabric electrode belt can be used as a fabric electrode sensor.
Optionally, each of the plurality of differential signal acquisition circuits includes a front-end filter, an electromagnetic interference EMI filter, a programmable gain amplifier PGA, and an analog-to-digital converter ADC, an input of the front-end filter is connected to a pair of fabric electrodes, an output of the front-end filter is connected to an input of the EMI filter, an output of the EMI filter is connected to an input of the PGA, an output of the PGA is connected to one end of the ADC, and another end of the ADC is connected to the control module.
The analog front end can be used for collecting, amplifying, analog-to-digital converting and the like of the myoelectric signals.
Please refer to fig. 1E, fig. 1E is a schematic diagram of a structure of a simulation front end provided in the embodiment of the present invention, wherein, in 2 or more input electrodes that the fabric electrode sensor includes, every two electrodes can constitute a pair of input electrodes, that is, the fabric electrode sensor includes a plurality of pairs of input electrodes, wherein, each pair of input electrodes can be connected with a differential signal acquisition circuit all the way, form a differential signal acquisition channel, thereby, a plurality of differential signal acquisition circuits can be distributed and connected with a pair of input electrodes that correspond, form a plurality of differential signal acquisition channels, and then each muscle on the parcel arm that can be all the way, the electromyographic signal of each muscle on the arm is collected comprehensively.
When electromyographic signals are collected, the frequency spectrum of continuous electromyographic signals has the phenomenon of frequency spectrum aliasing, and in order to solve the phenomenon of frequency spectrum aliasing, frequency spectrum components and high-frequency interference which are higher than w/2 in the continuous signals can be filtered out through a front-end filter before analog-to-digital conversion sampling, wherein w is sampling frequency. The low frequency signal can be filtered through the EMI filter, so that the electromagnetic interference signal is filtered.
The ADC is an analog-to-digital converter, the resolution of the ADC can be 24 bits and the sampling frequency can be adjusted in consideration of the fact that the surface electromyogram signal is very weak and is easy to interfere.
The PGA is a programmable gain programmable amplifier, and the amplification factor of the PGA can be set, for example, the programmable amplification factor can be selected from 1, 2, 3, 4, 6, 8, and 12.
Optionally, the driving circuit includes a shielding driving circuit and a right leg driving circuit, one end of the right leg driving circuit is connected to the shielding driving circuit, and the other end of the right leg driving circuit is connected to the driving electrode.
Optionally, the control module includes a control unit, a gyroscope, a wireless transmission module and a power module, the power module is configured to supply power to the analog front end and the control module, and the power module, the wireless transmission module and the gyroscope are respectively connected to the control unit.
Please refer to fig. 1F, fig. 1F is the utility model provides another kind of electromyographic signal collector's schematic structure diagram, wherein, control module includes the control unit, the gyroscope, wireless transmission module and power module, wherein, the control unit is used for controlling other units or modules to work, the gyroscope can be used to gather user's motion data, for example, can be used to gather user's arm motion data, and then carry out gesture recognition, wireless transmission module can be used to carry out wireless connection with electronic equipment, power module can be used to provide the power for fabric electrode sensor and simulation front end.
The electromyographic signal collector provided by the embodiment can be applied to gesture recognition, dumb recognition or toy control and other scenes, and specifically, in a gesture recognition scene, multiple paths of electromyographic signals can be collected through multiple differential signal collecting circuits, motion data of a user can be collected through a gyroscope, then gesture recognition is carried out according to the multiple paths of electromyographic signals and the motion data, the gesture of the user is determined, then operation corresponding to the gesture of the user is executed, in a dumb recognition scene, dumb recognition can be carried out through the electromyographic signals and the motion data collected by the electromyographic signal collector, then the dumb is translated into voice or character information, and display is carried out through a voice playing or character display mode. In addition, under the scene of controlling the toy, the electromyographic signals and the motion data collected by the electromyographic signal collector can be used for determining a control instruction for controlling the toy, and then the toy is controlled to execute the control instruction.
Optionally, the control unit includes a single chip microcomputer, and the wireless transmission module includes a WIFI processing unit and a WIFI matching circuit; the control module also comprises a voltage acquisition circuit, a flash memory, a reset circuit, a crystal oscillator circuit, an LED indicating circuit and a key module; wherein the content of the first and second substances,
the wireless transmission module, the voltage acquisition circuit, the flash memory, the reset circuit, the crystal oscillator circuit, the LED indicating circuit and the key module are respectively connected with the single chip microcomputer, and the WIFI processing unit is connected with the WIFI matching circuit.
Please refer to fig. 1G, fig. 1G is the embodiment of the utility model provides a structural schematic diagram of another kind of flesh electrical signal collector, wherein, the flesh electrical signal data volume of considering flesh electrical signal collector to gather is great, in order to guarantee the accurate transmission of flesh electrical signal data, wireless transmission module can have adopted WIFI transmission flesh electrical signal data.
The LED indicating circuit comprises at least one LED indicating lamp, the LED indicating lamp can be used for indicating the working state of the electromyographic signal collector and can also be used for indicating the battery power of the electromyographic signal collector, specifically, the LED indicating circuit can comprise a plurality of LED indicating lamps with different colors, the LED indicating lamps with different colors can be used for indicating different signals, for example, a red LED is used for indicating the power of a battery, and a blue LED is used for indicating the connection state of WIFI.
The key module can comprise a startup and shutdown key and keys with other functions, and the voltage acquisition circuit can be used for acquiring the voltage of the battery.
Optionally, the power module includes a battery, a protection circuit, a battery management module, and a voltage stabilizing circuit, wherein an output terminal of the battery is connected to an input terminal of the protection circuit, an output terminal of the protection circuit is connected to an input terminal of the battery management module, an input terminal of the battery is connected to an output terminal of the battery management module, and an input terminal of the voltage stabilizing circuit is connected to an output terminal of the battery management module.
Wherein, the battery can be a lithium battery.
Referring to fig. 1H, fig. 1H is a schematic structural diagram of another electromyographic signal collector according to an embodiment of the present invention. The power supply module can comprise a battery, a protection circuit, a battery management module and a voltage stabilizing circuit module. The protection circuit can prevent the power supply from short circuit and can also prevent the electronic elements from being damaged when the power supply is reversely connected. The battery management module can protect the battery from over charge, over discharge and short circuit and can charge the battery.
Referring to fig. 1I, fig. 1I is a schematic view of another electromyographic signal collector according to an embodiment of the present invention. The electromyographic signal collector 1000 can be worn on the wrist. The right leg driving electrode on the back of the electromyographic signal collector 1000 is in contact with the skin of the wrist when worn. The electromyographic signal collector can comprise a work indicator lamp 13 and a power indicator lamp, the work indicator lamp 13 can be used for indicating that the electromyographic signal collector is in a working state, the power indicator lamp can be used for indicating the electric quantity of the lithium battery, for example, when the electric quantity of the lithium battery is insufficient, the residual electric quantity of the lithium battery is smaller than a preset voltage value, the power indicator lamp flickers, and the preset voltage value can be 3.4V for example. The electromyographic signal collector 1000 further comprises a fabric electrode sensor 101 and a fabric electrode belt 14.
It can be seen, through the embodiment of the utility model provides an in the electromyographic signal collector, including fabric electrode sensor, analog front end and control module, fabric electrode sensor includes a plurality of fabric electrodes, the analog front end includes a plurality of differential signal acquisition circuits and drive circuit, differential signal acquisition circuit includes front end filter circuit, fabric electrode sensor and front end filter circuit are connected, the analog front end is connected with control module, so, the accessible adopts the fabric as the sensor of gathering the electromyographic signal, fabric electrode sensor is good with skin contact, it is comfortable, can wash, make the portable small and exquisite easy wearing of electromyographic signal collector.
Please refer to fig. 2, fig. 2 is a schematic view of a scene for collecting the electromyographic signals by the electromyographic signal collector according to an embodiment of the present invention. The embodiment of the utility model provides a myoelectric signal collector is connected with electronic equipment, can gather the myoelectric signal through a plurality of fabric electrodes after myoelectric signal collector includes a plurality of fabric electrodes and human contact, and will through the simulation front end myoelectric signal handles, obtains output signal. In the concrete implementation, the electromyographic signal collector can be bound on the forearms of two hands of a user, and the fabric electrode sensor is arranged and connected with the electromyographic signal collector through a connecting wire, so that the electromyographic signal of the user can be collected through the electromyographic signal collector, and the gesture of the arm of the user can be identified through the gyroscope.
Optionally, the electromyographic signal collector may be used on the upper arm, or on the lower leg and the upper leg. The electromyographic signal collector is convenient to use, and the fabric electrode sensor is in good contact with the skin, comfortable and washable, so that the electromyographic signal collector is portable, small and easy to wear.
The method specifically comprises the steps of filtering through a front-end filter, eliminating electromagnetic interference through an electromagnetic interference (EMI) filter, amplifying the electromyographic signals through a Programmable Gate Array (PGA), and finally performing analog-to-digital conversion through an analog-to-digital converter (ADC) to obtain the output signals.
It can be seen that in the embodiment of the present invention, the electromyographic signal collector comprises a fabric electrode sensor, a simulation front end and a control module, the fabric electrode sensor comprises a plurality of fabric electrodes, the simulation front end comprises a plurality of differential signal collecting circuits and a driving circuit, the differential signal collecting circuit comprises a front end filter circuit, the fabric electrode sensor is connected with the front end filter circuit, the simulation front end is connected with the control module, after a plurality of fabric electrodes included in the electromyographic signal collector are contacted with a human body, the electromyographic signal is collected through the fabric electrodes, and the myoelectric signal is processed by the analog front end to obtain an output signal, thus, the fabric electrode sensor is in good contact with the skin, comfortable and washable, so that the myoelectric signal collector is portable, small and easy to wear.
Please refer to fig. 3, fig. 3 is a schematic structural diagram of an electromyographic signal acquisition system provided in an embodiment of the present invention, the electromyographic signal acquisition system includes at least one electromyographic signal acquisition unit 1000 and an electronic device 1001, the electromyographic signal acquisition unit 1000 includes a fabric electrode sensor, a simulation front end and a control module, wherein the fabric electrode sensor includes a plurality of fabric electrodes, the simulation front end includes a plurality of differential signal acquisition circuits and a driving circuit, the differential signal acquisition circuit includes a front end filter circuit; the fabric electrode sensor is connected with the front end filter circuit, the simulation front end is connected with the control module, and the control module is wirelessly connected with the electronic equipment.
The electronic device according to an embodiment of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, which have wireless communication functions, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and so on. For example, the electronic device may be a notebook computer, a mobile phone, a PDA, etc., for convenience of description, and the above-mentioned devices are collectively referred to as electronic devices.
Wherein, at least one electromyographic signal collector can be wirelessly connected with the electronic device through the control module, the electromyographic signal collector can be directly started after the electromyographic signal collector is worn by a user, and then the electromyographic signal collector is collected, concretely, the electromyographic signal collector can be worn by the user, a fabric electrode sensor (namely a fabric electrode belt) is pasted on the surface of the skin, a connecting line is connected with the electromyographic signal collector, then the electromyographic signal collector is started through a startup and shutdown key of the electromyographic signal collector, so that the electromyographic signal collector can be connected with the electronic device through the control module, further, the electronic device waits for the signal collection instruction sent by the electronic device, the electromyographic signal collector can receive the signal collection instruction sent by the electronic device, then the analog front end is controlled to be connected with the fabric electrode sensor according to the signal collection instruction, and the, and the electromyographic signals are processed through the analog front end to obtain output signals, and the output signals are sent to the electronic equipment through the control module.
It can be seen that, in the embodiment of the utility model provides an in the electromyographic signal collection system, the electromyographic signal collector includes fabric electrode sensor, simulation front end and control module, fabric electrode sensor includes a plurality of fabric electrodes, the simulation front end includes a plurality of differential signal collection circuit and drive circuit, differential signal collection circuit includes front end filter circuit, fabric electrode sensor and front end filter circuit are connected, the simulation front end is connected with control module, after a plurality of fabric electrodes that the electromyographic signal collector includes contacted with the human body, through a plurality of fabric electrodes gather the electromyographic signal, and through the simulation front end will the electromyographic signal handles, obtains output signal, control module sends output signal to electronic equipment, so, the accessible adopts the fabric as the sensor of gathering the electromyographic signal, fabric electrode sensor and skin contact well, Comfortable, washable, make the portable small and exquisite easy wearing of flesh electrical signal collector.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. An electromyographic signal collector, comprising a fabric electrode sensor, an analog front end and a control module, wherein,
the fabric electrode sensor comprises a plurality of fabric electrodes, the analog front end comprises a plurality of differential signal acquisition circuits and a driving circuit, and the differential signal acquisition circuits comprise front end filter circuits;
the fabric electrode sensor is connected with the front end filter circuit, and the simulation front end is connected with the control module.
2. The electromyographic signal collector of claim 1, wherein the fabric electrode sensor is connected to the electromyographic signal collector by a connecting wire, the plurality of fabric electrodes comprises a driving electrode and more than 2 input electrodes, and the driving electrode is disposed on the electromyographic signal collector.
3. The electromyographic signal collector of claim 2, wherein the fabric electrode sensor further comprises an electrode fixing cloth, a plurality of sponges, a piece of isolating cloth, a piece of conductive fabric, an elastic band buckle, a connecting line and a connecting line interface, wherein,
each input electrode is sleeved on one sponge, and each input electrode comprises a small hole which is used for being connected with a connecting wire; the plurality of input electrodes are distributed on the electrode fixing cloth, and a preset distance is reserved between any two adjacent input electrodes;
the electrode fixing cloth, the isolation cloth and the conductive fabric are fixedly arranged on the elastic belt, the isolation cloth is fixedly arranged between the electrode fixing cloth and the conductive fabric, the elastic belt buckle is fixed on the elastic belt, and the connecting wire is welded on the connecting wire interface.
4. The electromyographic signal collector of claim 2 or 3, wherein each of the plurality of differential signal collection circuits comprises a front-end filter, an electromagnetic interference (EMI) filter, a Programmable Gain Amplifier (PGA), and an analog-to-digital converter (ADC), an input of the front-end filter is connected to a pair of fabric electrodes, an output of the front-end filter is connected to an input of the EMI filter, an output of the EMI filter is connected to an input of the PGA, an output of the PGA is connected to one end of the ADC, and another end of the ADC is connected to the control module.
5. The electromyographic signal collector of claim 4 wherein the drive circuit comprises a shielding drive circuit and a right leg drive circuit, one end of the right leg drive circuit is connected with the shielding drive circuit, and the other end of the right leg drive circuit is connected with the drive electrode.
6. The electromyographic signal collector of claim 5, wherein the control module comprises a control unit, a gyroscope, a wireless transmission module, and a power module, the power module is configured to supply power to the analog front end and the control module, and the power module, the wireless transmission module, and the gyroscope are respectively connected to the control unit.
7. The electromyographic signal collector of claim 6, wherein the control unit comprises a single-chip microcomputer, and the wireless transmission module comprises a WIFI processing unit and a WIFI matching circuit; the control module also comprises a voltage acquisition circuit, a flash memory, a reset circuit, a crystal oscillator circuit, an LED indicating circuit and a key module; wherein the content of the first and second substances,
the wireless transmission module, the voltage acquisition circuit, the flash memory, the reset circuit, the crystal oscillator circuit, the LED indicating circuit and the key module are respectively connected with the single chip microcomputer, and the WIFI processing unit is connected with the WIFI matching circuit.
8. The electromyographic signal collector according to claim 6 or 7, wherein the power supply module comprises a battery, a protection circuit, a battery management module and a voltage stabilizing circuit, wherein an output end of the battery is connected with an input end of the protection circuit, an output end of the protection circuit is connected with an input end of the battery management module, an input end of the battery is connected with an output end of the battery management module, and an input end of the voltage stabilizing circuit is connected with an output end of the battery management module.
9. An electromyographic signal acquisition system, comprising at least one electromyographic signal acquisition device according to any one of claims 1-8 and an electronic device, wherein each electromyographic signal acquisition device of the at least one electromyographic signal acquisition device is wirelessly connected with the electronic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183211.4U CN211862801U (en) | 2019-12-06 | 2019-12-06 | Electromyographic signal collector and system |
Applications Claiming Priority (1)
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