CN114305428A

CN114305428A - Myoelectricity acquisition equipment for volleyball players and acquisition method thereof

Info

Publication number: CN114305428A
Application number: CN202111438820.5A
Authority: CN
Inventors: 赵学战
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-04-12

Abstract

The invention discloses myoelectric acquisition equipment and an acquisition method for volleyball players, belongs to the technical field of myoelectric, and solves the problems of low myoelectric signal quality and strength and interference phenomenon caused by the fact that the direction of an electrode plate cannot be parallel to the direction of myofibers when myoelectric signals are acquired from complex movements of the volleyball players. The myoelectricity collecting equipment for volleyball athletes comprises a shell, fastening tapes and an electric control system, wherein the fastening tapes are respectively fixed on the left side surface and the right side surface of the shell, and the electric control system is installed inside the shell. According to the volleyball, the two knob switches are used for respectively controlling the different muscle fiber middle section electrodes and the different muscle fiber tip electrodes, so that when a volleyball player performs complicated actions, the muscle fiber middle section electrodes and the muscle fiber tip electrodes can be parallel to the muscle fiber direction of the volleyball player, the strength and the quality of signals are improved, and the signals are prevented from being interfered.

Description

Myoelectricity acquisition equipment for volleyball players and acquisition method thereof

Technical Field

The invention belongs to the technical field of myoelectricity, and relates to myoelectricity acquisition equipment for volleyball athletes and an acquisition method thereof.

Background

Electromyography, the method of recording the electrical activity of muscles when resting or contracting by using electronic instruments, and the method of checking the excitation and conduction functions of nerves and muscles by using electrical stimulation, abbreviated as EMG for short, can determine the functional states of peripheral nerves, neurons, neuromuscular junctions and muscles themselves through the checking.

Volleyball is one of ball sports items, the court is rectangular, a high net is arranged in the middle of the volleyball, two players (six players in each square) respectively occupy one side of the court, and the players play the volleyball from the net in an empty mode by using hands. The ball used in volleyball sports is made of sheepskin or artificial leather as a shell and rubber as a bladder, the size of the ball is similar to that of a football, and a player usually does not need to master all six technologies, namely serving, first-pass (serving), second-pass (lifting and supporting), catching, blocking and saving, but usually uses one or more of the technologies as a specialty according to the tactics of a team. The most common location assignments contain three types of locations: attack the hand (divide into main attack hand and vice attack hand), biography hand and free man (the sportsman of full-time defense). In order to effectively block the attack of the opponent and to bounce the ball back to the opponent's field at a steep angle and high speed before the opponent has enough reaction time, the player with high stature and good bouncing force generally acts as the attacking hand.

Just because volleyball sportsman's position is different, need carry out the analysis to the muscle of every sportsman's own advantage, no matter be swing arm or bounce process, volleyball sportsman's self power muscle is mostly the muscle crowd, and wherein single muscle can produce the error with muscle fibre direction in the power process, through adopting surface myoelectricity test this moment, the position and the direction of electrode slice can't be parallel with muscle fibre direction, cause very big influence to the myoelectricity signal of gathering.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a myoelectricity acquisition device and a myoelectricity acquisition method for volleyball players, wherein the myoelectricity acquisition device and the myoelectricity acquisition method aim to solve the technical problems that: when the myoelectric signals generated by the complex actions of the volleyball players are collected, the myofiber middle section electrode and the myofiber tip electrode can be parallel to the direction of the muscle fibers of the volleyball players, so that the strength and the quality of the signals are improved, and the signals are prevented from being interfered.

The purpose of the invention can be realized by the following technical scheme:

a myoelectricity collecting device for volleyball athletes comprises a shell, fastening tapes and an electric control system, wherein the fastening tapes are respectively fixed on the left side surface and the right side surface of the shell, and the electric control system is installed inside the shell.

The thread gluing area conveniently binds whole flesh electrical signal acquisition equipment in volleyball sportsman's muscle crowd department that needs the collection for gather volleyball sportsman's muscle fibre change.

The working principle of the invention is as follows: the base of the whole device is tightly attached to a muscle group to be measured of a sportsman, the device is bound well through a sticky buckle, the volleyball sportsman preheats muscles, the middle section, the ends and the directions of muscle fibers are determined, a first knob switch is rotated to enable a muscle fiber middle section electrode to be tightly attached to the middle section epidermis of the muscle fibers, a second knob switch is rotated to enable a muscle fiber end electrode to be tightly attached to the muscle fiber end epidermis, a reference electrode is tightly attached to the position, close to a bone, of the muscle group, the direction from the muscle fiber middle section electrode to the muscle fiber end electrode is parallel to the direction from the muscle fiber middle section to the ends, a battery supplies power to the whole device, an electromyographic signal collected by an electromyographic sensor is transmitted to a singlechip for amplification and filtering, the singlechip transmits the electromyographic signal to a wireless signal transmitting module, the electromyographic signal is transmitted by the wireless signal transmitting module, the wireless signal receiving module receives the electromyographic signal and characteristic information thereof, and transferred to a terminal processing computer.

The shell comprises a base, a side wall and a top cover, the side wall is fixedly installed on the base, the top cover is fixed above the side wall through screws, a transverse partition plate is fixedly installed on the side wall, a first working cavity is formed between the transverse partition plate and the base, meanwhile, a vertical partition plate is installed on the upper surface of the transverse partition plate, and a second working cavity and a third working cavity are formed between the vertical partition plate and the side wall.

The electric control system comprises a printed circuit board, a singlechip, a wireless signal transmitting module, a battery, a myoelectricity sensor and a contact electrode, wherein the singlechip is welded to a contact connecting hole on the surface of the printed circuit board, the model of the singlechip is 80C52, and the surface of the printed circuit board is welded with a wireless signal transmitting module at the contact connecting hole, the wireless signal transmitting module is positioned at the right side of the singlechip, the wireless signal transmitting module is electrically connected with the singlechip through a printed circuit board, a power supply pin of the electromyographic sensor is welded with a copper wire, is connected with the printed circuit board through the copper wire and is electrically connected with the singlechip, and the electrode pin of the electromyographic sensor is connected with the contact electrode through a copper wire, the positive electrode and the negative electrode of the battery are welded in the power supply pin connection hole of the printed circuit board through the copper wire, and the battery is electrically connected with the printed circuit board, the singlechip, the wireless signal transmitting module, the electromyographic sensor and the contact electrode.

The singlechip is basic singlechip, and the function is practical, and application range is wide, and the direct purchase of being convenient for, its wireless signal emission module chooses for use F05R model, the wireless signal emission module of this model, the stable performance is particularly suitable for battery powered's little volume wireless remote control, and its signal makes things convenient for the wireless receiving module of terminal computer to receive.

Four corners of the printed circuit board are fixed in the second working cavity through screws, the electromyographic sensor is fixedly installed in the first working cavity, the battery is installed in the power supply installation groove, and the power supply installation groove is fixed in the third working cavity.

The first working chamber, the second working chamber and the third working chamber are used for distinguishing the functions of the whole electric control system, so that the short circuit phenomenon caused by electronic elements is prevented, and the practical reliability of the electric control system is improved.

The contact electrode comprises a muscle fiber middle section electrode, muscle fiber tip electrodes and reference electrodes, the muscle fiber middle section electrode is connected to a muscle fiber middle section pin connecting hole of the myoelectric sensor through a copper conducting wire, the number of the muscle fiber middle section electrodes is three, the muscle fiber middle section electrodes are arranged on the lower surface of the base in parallel and equidistantly, the muscle fiber tip electrodes are connected to a muscle fiber tip pin connecting hole of the myoelectric sensor through a copper conducting wire, the number of the muscle fiber tip electrodes is three, the muscle fiber tip electrodes are arranged on the lower surface of the base in parallel and equidistantly, the reference electrodes are connected to a reference electrode pin connecting hole of the myoelectric sensor through a copper conducting wire, and the reference electrodes are distributed outside the whole device through copper conducting wires.

The three muscle fiber middle section electrodes and the three muscle fiber end electrodes can avoid repeatedly determining the middle section and the end position of a muscle group, improve the strength and the quality of signals and prevent the signals from being interfered.

The lower surface of the base is arc-shaped.

The arc-shaped base can enable the base to be in close contact with the surface of the muscle group, so that signals of muscle fibers are transmitted to the contact electrode better.

The surface of the top cover is provided with a first knob switch and a second knob switch, the first knob switch is electrically connected between the myoelectric sensor and the myofiber middle section electrode, and the second knob switch is electrically connected between the myoelectric sensor and the myofiber tip electrode.

The first knob switch and the second knob switch are rotated to select the muscle fiber middle section electrode and the muscle fiber tip electrode, so that the positions and the directions of the muscle fiber middle section electrode and the muscle fiber tip electrode can be jointed with the direction of muscle fibers when muscles exert force, and the accuracy of measuring myoelectric signals is ensured.

A collection method of myoelectricity collection equipment for volleyball players comprises the following steps:

1) selecting a muscle group to be measured by a volleyball player and disinfecting;

2) opening the fastening tape, tying the equipment on a muscle group of a volleyball player, and preheating the muscle by the volleyball player to determine the movement direction and position of muscle fiber;

3) adjusting the positions of the muscle fiber middle section electrode and the muscle fiber tip electrode to enable the muscle fiber middle section electrode to be tightly attached to the middle section position of the muscle, enabling the muscle fiber tip electrode to be located on the surface of the muscle tip, and enabling the directions of the muscle fiber middle section electrode and the muscle fiber tip electrode to be parallel to the direction of muscle fiber power;

5) the electromyographic signals collected by the electromyographic sensor are transmitted to the singlechip for amplification and filtering;

6) the single chip microcomputer transmits the electromyographic signals to the wireless signal transmitting module, and the wireless signal transmitting module transmits the electromyographic signals;

7) the wireless signal receiving module receives the electromyographic signals and the characteristic information thereof and transmits the electromyographic signals and the characteristic information to the terminal processing computer.

In the step 3), the method that the directions of the muscle fiber middle section electrode and the muscle fiber tip electrode are parallel to the direction of the muscle fiber power is that the direction of the muscle fiber power is determined when the volleyball player realizes warming up, the first knob switch is adjusted, the muscle fiber middle section electrode attached to the muscle fiber middle section is selected, the muscle fiber middle section electrode is made to be attached to the skin of the muscle fiber middle section, the second knob switch is adjusted, the muscle fiber tip electrode attached to the muscle fiber tip is selected, and the muscle fiber tip electrode is made to be attached to the skin of the muscle fiber tip.

Compared with the prior art, the myoelectricity acquisition equipment and the myoelectricity acquisition method have the following advantages:

1. according to the volleyball, the two knob switches are used for respectively controlling the different muscle fiber middle section electrodes and the different muscle fiber tip electrodes, so that when a volleyball player performs complicated actions, the muscle fiber middle section electrodes and the muscle fiber tip electrodes can be parallel to the muscle fiber direction of the volleyball player, the strength and the quality of signals are improved, and the signals are prevented from being interfered.

2. Through the wireless transmission mode, the problem of inconvenient action caused by a complex transmission line is avoided.

Drawings

FIG. 1 is an isometric view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

FIG. 3 is a schematic diagram of an installation structure of the electromyographic sensor according to the present invention.

FIG. 4 is a structural isometric view of a base surface in accordance with the present invention.

Fig. 5 is a structural isometric view of the interior of the housing of the present invention.

Fig. 6 is a diagram of the electronic control system of the present invention.

Fig. 7 is a system block diagram of the present invention.

In the figure, 1-shell, 101-base, 102-side wall, 103-top cover, 104-transverse partition board, 105-vertical partition board, 106-first working cavity, 107-second working cavity, 108-third working cavity, 2-magic tape, 301-printed circuit board, 302-single chip microcomputer, 303-wireless signal transmitting module, 304-power supply mounting groove, 305-battery, 306-myoelectricity sensor, 307-contact electrode, 307 a-myoelectricity fiber middle electrode, 307 b-myoelectricity fiber end electrode, 307 c-reference electrode, SB 1-first knob switch and SB 2-second knob switch.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1 to 7, the invention provides a myoelectricity collecting device for volleyball athletes, which comprises a housing 1, fastening tapes 2 and an electric control system, wherein the fastening tapes 2 are respectively fixed on the left side surface and the right side surface of the housing 1, and the electric control system is installed inside the housing 1.

Adopt above-mentioned structure, conveniently bind whole flesh electrical signal collection equipment in volleyball sportsman's muscle crowd department that needs the collection for gather volleyball sportsman's muscle fibre change.

The housing 1 comprises a base 101, a side wall 102 and a top cover 103, wherein the side wall 102 is fixedly arranged on the upper surface of the base 101, the top cover 103 is fixed above the side wall 102 through screws, a transverse partition plate 104 is fixedly arranged on the side wall 102, a first working cavity 106 is formed between the transverse partition plate 104 and the base 101, a vertical partition plate 105 is arranged on the upper surface of the transverse partition plate 104, and a second working cavity 107 and a third working cavity 108 are formed between the vertical partition plate 105 and the side wall 102.

The electric control system comprises a printed circuit board 301, a single chip microcomputer 302, a wireless signal transmitting module 303, a battery 305, an electromyographic sensor 306 and a contact electrode 307, wherein the single chip microcomputer 302 is welded to a contact connection hole on the surface of the printed circuit board 301, the model of the single chip microcomputer 302 is 80C52, the wireless signal transmitting module 303 is welded to the contact connection hole on the surface of the printed circuit board 301, the wireless signal transmitting module 303 is located on the right side of the single chip microcomputer 302, the wireless signal transmitting module 303 is electrically connected with the single chip microcomputer 302 through the printed circuit board 301, a copper wire is welded to a power supply pin of the electromyographic sensor 306, the power supply pin is connected to the printed circuit board 301 through the copper wire and is electrically connected with the single chip microcomputer 302, the contact electrode 307 is connected to an electrode pin of the electromyographic sensor 306 through the copper wire, the positive electrode and the negative electrode of the battery 305 are welded to a power supply pin connection hole of the printed circuit board 301 through the copper wire, and the battery 305 is electrically connected with the printed circuit board 301, the battery 305, The system comprises a single chip microcomputer 302, a wireless signal transmitting module 303, an electromyographic sensor 306 and a contact electrode 307.

Adopt the singlechip 302 of above-mentioned model, because this model singlechip is basic singlechip, the function is practical, and application range is wide, is convenient for directly purchase, and F05R model is chooseed for use to its wireless signal emission module 303, and the wireless signal emission module 303 of this model, the stable performance is particularly suitable for the little volume wireless remote control of battery powered, and its signal makes things convenient for the wireless receiving module of terminal computer to receive.

Four corners of the printed circuit board 301 are fixed in the second working chamber 107 by screws, the electromyographic sensor 306 is fixedly installed in the first working chamber 106, the battery 305 is installed in the power supply installation groove 304, and the power supply installation groove 304 is fixed in the third working chamber 108.

By adopting the structure, the functions of the whole electric control system are distinguished, the short circuit phenomenon caused by electronic elements is prevented, and the practical reliability of the electric control system is improved.

The contact electrode 307 includes a myofiber mid-stage electrode 307a, a myofiber tip electrode 307b, and a reference electrode 307c, the myofiber mid-stage electrode 307a is connected to a myofiber mid-stage pin connection hole of the myoelectric sensor 306 by a copper wire, and the myofiber mid-stage electrodes 307a are provided in three, and are arranged in parallel and equidistantly on the lower surface of the base 101, the myofiber tip electrodes 307b are connected to a myofiber tip pin connection hole of the myoelectric sensor 306 by a copper wire, and the myofiber tip electrodes 307b are provided in three, and are arranged in parallel and equidistantly on the lower surface of the base 101, the reference electrode 307c is connected to a reference electrode pin connection hole of the myoelectric sensor 306 by a copper wire, and the reference electrode 307c is distributed outside the entire apparatus by a copper wire.

By adopting the structure, the repeated determination of the middle section and the tip position of the muscle group can be avoided, the strength and the quality of signals are improved, and the signals are prevented from being interfered.

The lower surface of the base 101 is curved.

With the above structure, the base 101 can be in close contact with the surface of the muscle group, and the signal of the muscle fiber can be transmitted to the contact electrode 307.

The top cover 103 is surface-mounted with a first knob switch SB1 and a second knob switch SB2, the first knob switch SB1 being electrically connected between the myoelectric sensor 306 and the myoelectric fiber mid-section electrode 307a, and the second knob switch SB2 being electrically connected between the myoelectric sensor 306 and the myoelectric fiber tip electrode 307 b.

With the above structure, the first knob switch SB1 and the second knob switch SB2 are rotated to select the muscle fiber middle section electrode 307a and the muscle fiber tip electrode 307b, so that the positions and directions of the muscle fiber middle section electrode 307a and the muscle fiber tip electrode 307b can be matched with the direction of the muscle fiber when the muscle generates force, and the accuracy of measuring the myoelectric signal is ensured.

2) the magic tape 2 is opened, the equipment is tied on a muscle group of the volleyball player, the volleyball player preheats muscles, and the movement direction and position of muscle fibers are determined;

3) adjusting the positions of the muscle fiber middle section electrode 307a and the muscle fiber tip electrode 307b to ensure that the muscle fiber middle section electrode 307a is tightly attached to the middle section position of the muscle, the muscle fiber tip electrode 307b is positioned on the tip surface of the muscle, and the directions of the muscle fiber middle section electrode 307a and the muscle fiber tip electrode 307b are parallel to the direction of muscle fiber power;

4) the electromyographic signals collected by the electromyographic sensor 306 are transmitted to the single-chip microcomputer 302 for amplification and filtering;

5) the single chip microcomputer 302 transmits the electromyographic signals to the wireless signal transmitting module 303, and the wireless signal transmitting module 303 sends out the electromyographic signals;

6) the wireless signal receiving module receives the electromyographic signals and the characteristic information thereof and transmits the electromyographic signals and the characteristic information to the terminal processing computer.

In the step 3), the method that the directions of the muscle fiber middle section electrode (307a) and the muscle fiber tip electrode (307b) are parallel to the direction of the muscle fiber power is that a volleyball player determines the direction of the muscle fiber power when warming up, the first knob switch (SB1) is adjusted, the muscle fiber middle section electrode (307a) attached to the muscle fiber middle section is selected, the muscle fiber middle section electrode (307a) is made to be attached to the epidermis of the muscle fiber middle section, the second knob switch (SB2) is adjusted, the muscle fiber tip electrode (307b) attached to the muscle fiber tip is selected, and the muscle fiber tip electrode (307b) is made to be attached to the epidermis of the muscle fiber tip.

The working principle of the invention is as follows:

the base of the whole device is tightly attached to a muscle group to be measured of a sportsman, the device is bound well through a sticky buckle, the volleyball sportsman preheats muscles, the middle section, the ends and the directions of muscle fibers are determined, a first knob switch is rotated to enable a muscle fiber middle section electrode to be tightly attached to the middle section epidermis of the muscle fibers, a second knob switch is rotated to enable a muscle fiber end electrode to be tightly attached to the muscle fiber end epidermis, a reference electrode is tightly attached to the position, close to a bone, of the muscle group, the direction from the muscle fiber middle section electrode to the muscle fiber end electrode is parallel to the direction from the muscle fiber middle section to the ends, a battery supplies power to the whole device, an electromyographic signal sensor transmits collected electromyographic signals to a singlechip for amplification and filtering, the singlechip transmits the electromyographic signals to a wireless signal transmitting module, the electromyographic signals are transmitted by the wireless signal transmitting module, the wireless signal receiving module receives the electromyographic signals and characteristic information thereof, and transferred to a terminal processing computer.

The myoelectricity acquisition equipment and the myoelectricity acquisition method for the volleyball players disclosed by the invention have the advantages that different myoelectricity fiber middle section electrodes and different myoelectricity fiber tip electrodes are respectively controlled by two knob switches, so that when the volleyball players perform complicated actions, the myoelectricity fiber middle section electrodes and the myoelectricity fiber tip electrodes can be parallel to the direction of the myoelectricity fibers of the volleyball players, the strength and the quality of signals are improved, the signals are prevented from being interfered, and the problem of inconvenient actions caused by complicated transmission lines is solved in a wireless transmission mode.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The myoelectricity acquisition equipment for volleyball athletes is characterized by comprising a shell (1), fastening tapes (2) and an electric control system, wherein the fastening tapes (2) are respectively fixed on the left side surface and the right side surface of the shell (1), and the electric control system is installed inside the shell (1).

2. The myoelectric acquisition device for volleyball players according to claim 1, wherein the housing (1) comprises a base (101), a side wall (102) and a top cover (103), the side wall (102) is fixedly mounted on the upper surface of the base (101), the top cover (103) is fixed above the side wall (102) through screws, a transverse partition plate (104) is fixedly mounted on the side wall (102), a first working cavity (106) is formed between the transverse partition plate (104) and the base (101), a vertical partition plate (105) is mounted on the upper surface of the transverse partition plate (104), and a second working cavity (107) and a third working cavity (108) are formed between the vertical partition plate (105) and the side wall (102).

3. The myoelectricity collection device for volleyball players according to claim 2, wherein the electric control system comprises a printed circuit board (301), a single chip microcomputer (302), a wireless signal transmitting module (303), a battery (305), a myoelectricity sensor (306) and a contact electrode (307), the single chip microcomputer (302) is welded to a contact connection hole on the surface of the printed circuit board (301), the single chip microcomputer (302) is selected to be 80C52 in model, the wireless signal transmitting module (303) is welded to the contact connection hole on the surface of the printed circuit board (301), the wireless signal transmitting module (303) is located on the right side of the single chip microcomputer (302), the wireless signal transmitting module (303) is electrically connected with the single chip microcomputer (302) through the printed circuit board (301), a copper wire is welded to a power supply pin of the myoelectricity sensor (306), and is connected to the printed circuit board (301) through the copper wire and is electrically connected with the single chip microcomputer (302), and an electrode pin of the electromyographic sensor (306) is connected with the contact electrode (307) through a copper wire, the positive electrode and the negative electrode of the battery (305) are welded in a power supply pin connection hole of the printed circuit board (301) through the copper wire, and the battery (305) is electrically connected with the printed circuit board (301), the single chip microcomputer (302), the wireless signal transmitting module (303), the electromyographic sensor (306) and the contact electrode (307).

4. The electromyography acquisition device of a volleyball player of claim 3, wherein the printed circuit board (301) is fixed at four corners to the second working chamber (107) by screws, the electromyography sensor (306) is fixedly installed in the first working chamber (106), the battery (305) is installed in the power supply installation groove (304), and the power supply installation groove (304) is fixed in the third working chamber (108).

5. The myoelectric acquisition device for volleyball players according to claim 3, wherein the contact electrodes (307) include a mid-myofiber electrode (307a), a distal myofiber electrode (307b), and a reference electrode (307c), the mid-myofiber electrode (307a) is connected to the mid-myofiber pin hole of the myoelectric sensor (306) through a copper wire, and the mid-myofiber electrodes (307a) are provided in three, arranged in parallel and equidistantly on the lower surface of the base (101), the distal myofiber electrode (307b) is connected to the distal myofiber pin hole of the myoelectric sensor (306) through a copper wire, and the distal myofiber electrodes (307b) are provided in three, arranged in parallel and equidistantly on the lower surface of the base (101), and the reference electrode (307c) is connected to the reference electrode pin hole of the myoelectric sensor (306) through a copper wire, and the reference electrode (307c) is distributed over the entire apparatus by copper wires.

6. The electromyography acquisition device of a volleyball player according to claim 2, wherein the lower surface of the base (101) is curved.

7. The myoelectric acquisition device for volleyball players according to claim 6, wherein the top cover (103) is surface-mounted with a first knob switch (SB1) and a second knob switch (SB2), the first knob switch (SB1) being electrically connected between the myoelectric sensor (306) and the myofiber mid-electrode (307a), and the second knob switch (SB2) being electrically connected between the myoelectric sensor (306) and the myofiber tip-electrode (307 b).

8. An acquisition method based on an electromyographic acquisition apparatus for a volleyball player according to any one of claims 1 to 7, comprising the steps of:

2) opening the magic tape (2), tying the equipment on a muscle group of a volleyball player, and preheating muscles by the volleyball player to determine the movement direction and position of muscle fibers;

3) adjusting the positions of the muscle fiber middle section electrode (307a) and the muscle fiber tip electrode (307b) to ensure that the muscle fiber middle section electrode (307a) is tightly attached to the middle section position of the muscle, the muscle fiber tip electrode (307b) is positioned on the tip surface of the muscle, and the directions of the muscle fiber middle section electrode (307a) and the muscle fiber tip electrode (307b) are parallel to the direction of muscle fiber power;

4) the electromyographic signals collected by the electromyographic sensor (306) are transmitted to the singlechip (302) for amplification and filtering;

5) the single chip microcomputer (302) transmits the electromyographic signals to the wireless signal transmitting module (303), and the wireless signal transmitting module (303) transmits the electromyographic signals;