CN102631767A - Upper arm extension exercise correcting device and method - Google Patents

Abstract

The invention relates to an upper arm flexion and extension exercise correction device and method. It includes a rear arm sensing device (01), a forearm sensing device (02), and a controller unit (03). The rear arm sensing device (01) and the forearm sensing device (02) are respectively connected to corresponding interfaces of the controller unit (03) through wires. The front and rear arm induction devices each include a position sensor and three vibration motors. During use, the rear arm sensing device (01) is worn on the top of the exercise arm, the forearm sensing device (02) is worn on the bottom of the arm, and the single-chip microcomputer controller (31) will respond to the The position signal fed back by the device (02) is processed, compared with the set target value, if the detected signal value deviates from the target value, the single-chip controller (31) will activate the corresponding vibration motor, the more the position deviation , the stronger the vibration. The invention can find out whether the posture is correct during upper limb strength training, and can give feedback to the exerciser, prompting and helping the exerciser to correct the posture in time, and then helping the exerciser to achieve the purpose of scientific exercise.

Description

An upper arm flexion and extension exercise correction device and method

technical field

The invention relates to an exercise posture correction device, in particular to an upper arm flexion and extension exercise correction device and method. the

Background technique

With the improvement of material living standards, people pay more and more attention to physical health, various fitness activities are vigorously carried out, and various exercise equipments are also emerging in an endless stream. the

The biceps and triceps are located on both sides of the upper arm. They are important muscles in the human body and one of the key areas for upper body strength training. The body-building equipment of the upper limb strength training of current market sale is of a great variety, as common gripper, flexion and extension exercise equipment, thrust exercise equipment etc., also has some special comprehensive fitness equipment. Investigating the use of various types of exercise equipment, it is found that flexion and extension exercise equipment is currently the most widely used method, and its typical representative is "dumbbells". Many people, such as athletes and patients, will choose to lift dumbbells when they are receiving physical rehabilitation or when they are exercising, because this method is convenient, effective, and relatively safe. However, during use, the user does not pay much attention to whether the exercise posture is deformed, or it is difficult to correct the error of the posture in the exercise due to lack of professional knowledge. Incorrect posture not only fails to achieve good exercise effects, but also easily injures the exerciser. Existing many body-building products of upper body strength training in the market, but with regard to the purposes of various products, it exists only for the purpose of taking exercise, and can not correct the defect of misunderstanding in people's exercising. the

Contents of the invention

In view of the above problems, the object of the present invention is to provide a kind of upper arm flexion and extension exercise correction device and method, the device can find out whether the posture is correct in the upper limb strength exercise, and can give real-time feedback to the exerciser when detecting improper posture, prompting and Help the exerciser to correct the posture in time, so as to achieve the purpose of scientific exercise. the

To achieve the above object, the present invention takes the following technical solutions:

An upper arm flexion and extension exercise correction device, comprising three parts: a rear arm sensing device (01) placed above the arm, a forearm sensing device (02) placed below the arm, and a controller unit (03). Wherein the rear arm sensing device (01) and the forearm sensing device (02) are both connected to the controller unit (03) through wires. the

The rear arm induction device (01) placed above the arm includes a first acceleration sensor (10) and three vibration motors (11) (12) (13), and these three motors are placed on the upper sides and rear of the arm The position of the forearm sensing device (02) placed under the arm, including the second acceleration sensor (20) and three vibration motors (21) (22) (23), these three motors are placed on both sides below the arm and the rear position. the

The controller unit (03) of the device includes a single-chip controller (31), an acceleration detection circuit (32), and a vibration motor drive circuit (33). Wherein the two-way sensor detection interface of acceleration detection circuit (32) links to each other with two acceleration sensors (10), (20), each comprises 3 output ends and 3 electric capacity of acceleration sensor, and each output end is connected with A capacitor is connected, and the contact is connected with the corresponding pin of the microcontroller (31); the vibration motor drive circuit (33) part includes 6 motor drives, and each motor drive includes a resistor, a field effect transistor, a diode and motor wiring One end of each motor connection port is connected to the cathode of a diode, the anode of the diode is connected to the 5V power supply, the other end of the motor connection port is connected to the drain of a FET, the source of the FET is grounded, and the gate of the FET is grounded. It is connected with one end of the resistor R, the other end of the resistor R is grounded, and the contact between the resistor R and the gate of the field effect tube is connected with the pin of the single-chip microcomputer (11). the

As preferably, the single-chip microcomputer wherein selects the single-chip microcomputer with AD input interface, such as the ATMEGA series single-chip microcomputer of Atmel, the C8051F series single-chip microcomputer of Silabs and the like. the

An upper arm flexion and extension exercise correction device, the correction method is: when doing upper arm flexion and extension exercises, the corresponding muscles will change in position, and the single-chip microcomputer controller (31) will control the signals from the rear arm sensing device (01), the forearm sensing device ( 02) The position signal fed back is processed, compared with the set target value, and the control signal is sent to the motor control circuit connected to it according to the comparison result. Each position signal includes three axes: X axis, Y axis and Z axis. The position information of the axis, if a detected signal value deviates from the target value, then the corresponding vibration motor among the 6 motors will be activated, the more the position deviation, the stronger the vibration, the user can use the vibration of the corresponding motor To judge the misunderstanding of one's own posture, so as to improve the movement. the

The present invention has the following advantages due to taking the above technical scheme:

1. It can effectively monitor the movement posture of the upper arm flexion and extension exercise, and can prompt the incorrect posture, so that the user can improve the movement. the

2. Quantitative feedback can also be given to the degree of deviation of incorrect postures, rather than simply judging whether it is correct or not, which is more conducive to the self-improvement of users. the

3. The structure is light and easy to wear, and it can be used with most upper arm flexion and extension exercise fitness equipment. the

Description of drawings

Fig. 1 is a schematic diagram of equipment connection of an upper arm flexion and extension exercise correction device according to the present invention. the

Fig. 2 is a schematic diagram of the circuit structure of the correction device of the present invention. the

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. the

As shown in Fig. 1, the present invention comprises a rear arm sensing device (01), a forearm sensing device (02), and a controller unit (03). When in use, wear the rear arm sensing device (01) on the top of the exercise arm, wear the forearm sensing device (02) on the bottom of the arm, lead out the leads of the two, and place them with the external controller unit (03) ) to the corresponding interface. the

As shown in Fig. 2, the controller unit (03) of the present invention includes a single-chip microcomputer controller (31), an acceleration detection circuit (32), and a vibration motor drive circuit (33). the

Wherein the acceleration detection circuit (32) includes two sensor detection interfaces, which are used to be connected with two acceleration sensors (10) (20), and each includes 3 output terminals and 3 capacitors of the acceleration sensor, and each output terminal is connected to the acceleration sensor. A capacitor is connected, and this contact is connected with the corresponding pin of the single-chip microcomputer (31). The purpose of connecting the capacitor is that the sensor may be subject to external interference during the signal transmission process, and the capacitor can filter out these interferences to ensure the correctness of the signal. the

Wherein the vibration motor drive circuit (33) includes 6 motor drives, and each motor drive includes a resistor, a field effect transistor, a diode and a motor connection port. One end of each motor connection port is connected to the cathode of a diode, and the anode of the diode is connected to the 5V power supply. The purpose of placing the diode is that the motor will generate self-induced electromotive force during the start and stop of the motor, especially when the motor stops. , there is no other load for its consumption at this time, the current will generate high voltage on the inductance of the motor, which may easily cause damage to the field effect tube connected to it, insulation damage or even explosion. Reverse cut-off, but after the motor stops, because it conducts in the forward direction with the discharge current of the inductor, it can provide the discharge current of the inductor, and because the forward bias voltage of the diode is extremely low, it will not generate a high-voltage arc, thus effectively protecting the field Effect tube; the other end of the motor connection port is connected to the drain of a field effect tube, the source of the field effect tube is grounded, the gate is connected to one end of the resistor R, and the other end of the resistor R is grounded, between the resistor R and the field effect tube The contact between the gate poles of the gate is connected with the pin of the single-chip microcomputer (11). The beneficial effect of placing the resistor is that when the microcontroller is not working or in a high-impedance state, it can give a clear low-level signal to the gate of the field effect tube to prevent false conduction of the field effect tube and malfunction of the vibration motor. the

The beneficial effect of using a single-chip microcomputer is that the single-chip microcomputer can not only output high and low levels to control the on-off of the field effect tube and then control the opening and closing of the vibration motor, but more importantly, the single-chip microcomputer can also generate pulse width modulation (PWM). Waveform, using different PWM look-at ratios to control the amplitude of motor vibration, so that users can receive quantitative feedback. the

Another beneficial effect of using the single-chip microcomputer is that the single-chip microcomputer also has complex information processing capabilities, which can better receive the information transmitted by the sensor and make a judgment output. the

Describe the correction process of the device of the present invention in the upper arm flexion and extension exercise below in conjunction with Fig. 1 . the

The placement positions of two acceleration sensors and six vibration motors of the device are respectively: the first acceleration sensor (10) and three vibration motors (11) (12) (13) are paired and placed on the top of the arm, the second acceleration sensor (20) and three vibration motors (21)(22)(23) are paired and placed under the arm. The motor (11) on the side of the upper arm is used to reflect the angle that the upper arm moves sideways away from the user, the motor (12) in front of the upper arm is used to feed back the angle of the forward movement of the upper arm, and the motor (13) behind the upper arm is used for feedback The angle at which the upper arm moves backwards, the motor (21) on the left side of the lower arm and the motor (22) on the right are used to feed back the angle at which the lower arm moves left and right, and the motor (23) behind the lower arm is used to feed back the speed of the curved arm . They will respectively be controlled by the single-chip microcomputer (31) to generate vibration when the deviation between the detected angle value or speed value and the target value is greater than a certain set value. the

For example, take "lifting dumbbells" as an example. Improper movements often fail to achieve the desired exercise effect, and are likely to cause accidents, such as the lower arm being turned inward or outward during the exercise. Others, such as at the beginning, some exercisers tend to be in better condition, eager for success, very fast, and prone to accidents. Below with regard to the above situation, describe how this device prompts and helps the exerciser to correct. During exercise, take the right hand as an example, when the lower arm of the exerciser is too inwardly offset, then at this time, in the coordinates returned by the acceleration sensor (20) of the lower arm, the coordinates indicating the direction of the left and right movement will be set at the same time. Fixed value has bigger deviation, after getting back to single-chip microcomputer (31), single-chip microcomputer (31) will drive vibrating motor (21) to generate vibration by motor drive circuit, prompting user's lower arm to the inside sideways. According to different degrees of deviation, the vibration of the motor will also be different. The more the deviation, the greater the vibration. The user can adjust the posture in time according to the feedback from the vibration motor; Motor (22) just produces vibration; If in the process of exercising, the action of bent arm is too fast, this moment single-chip microcomputer (31) will detect this problem, and control vibration motor (23) produces vibration. the

Other situations such as crank arm not in place, also can be detected by single-chip microcomputer (11) by detecting the state of first acceleration sensor (10) second acceleration sensor (20), after single-chip microcomputer judges according to actual conditions, utilize vibration motor Provide appropriate prompts to users. the

Claims (7)

1. a upper arm bends and stretches the exercise motion apparatus for correcting, it is characterized in that, comprising: place arm top postbrachium induction installation (01), place forearm induction installation (02), controller unit (03) three part of arm below; Postbrachium induction installation (01) links to each other with controller unit (03) through lead; Forearm induction installation (02) also links to each other with system device part (03) through lead.

2. a kind of upper arm according to claim 1 bends and stretches the exercise motion apparatus for correcting, it is characterized in that, the described postbrachium induction installation (01) that places the arm top comprises first acceleration transducer (10) and three vibrating motors (11) (12) (13).

3. a kind of upper arm according to claim 1 bends and stretches the exercise motion apparatus for correcting, it is characterized in that, the described forearm induction installation (02) that places the arm below comprises second acceleration transducer (20) and three vibrating motors (21) (22) (23).

4. a kind of upper arm according to claim 1 bends and stretches the exercise motion apparatus for correcting, it is characterized in that, described controller unit (03) comprising: singlechip controller (31), acceleration detection circuit (32), vibrating motor drive circuit (33).

5. a kind of upper arm according to claim 4 bends and stretches the exercise motion apparatus for correcting, it is characterized in that, described acceleration detection circuit (32) comprises two-way sensor detecting unit; Each unit comprises an acceleration transducer interface and 3 electric capacity; Three signal output part XOUT of acceleration transducer, YOUT, ZOUT is connected to form contact with electric capacity and links to each other with the pin of single-chip microcomputer (31).

6. a kind of upper arm according to claim 4 bends and stretches the exercise motion apparatus for correcting, it is characterized in that, described vibrating motor drive circuit (33) comprises 6 road electric-motor drive units; Each drives unit comprises a resistance, FET, diode and motor Wiring port; Each motor Wiring port one end is connected with the negative pole of a diode, and the positive pole of diode is connected with the 5V power supply; The other end of motor Wiring port is connected with the drain electrode of a FET, the source ground of FET, and the gate pole of FET is connected with an end of resistance R, the other end ground connection of resistance R; Contact between the gate pole of resistance R and FET links to each other with the pin of single-chip microcomputer (11).

7. a kind of upper arm according to claim 1 bends and stretches the exercise motion apparatus for correcting; Its antidote is; Bend and stretch when taking exercise doing upper arm; Corresponding muscle can change by occurrence positions, and singlechip controller (31) will be handled the position signalling that feeds back from postbrachium induction installation (01), forearm induction installation (02); Through comparing, transmit control signal to the circuit for controlling motor that is connected with it according to comparing result with the desired value that configures; Each position signalling comprises the positional information of three on X axle, Y axle, Z axle, if detected certain signal value value of departing from objectives, that corresponding vibrating motor will be activated in 6 motors so, and offset is many more, vibrates more severe; The user will judge the deviation that oneself moves through the vibration of corresponding motor, and action is improved.

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