KR101573307B1 - Apparatus and method for measuring state of exercise using gyro sensor - Google Patents

Abstract

More particularly, the present invention relates to a gyro sensor for measuring the amount of exercise by recognizing the gait at the time of walking and running, and determining a motion state according to the measured momentum, The present invention relates to an apparatus and method for measuring a motion state using a gyro sensor that informs a user.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gyro sensor,

More particularly, the present invention relates to a gyroscopic sensor for measuring the amount of exercise through gait recognition during walking and running (hereinafter referred to as "gait"), And more particularly, to a device and method for measuring a motion state using a gyro sensor for determining a motion state, i.e., a motion efficiency according to a gyro sensor.

As people become more sophisticated, they are under a lot of stress from busy daily life and intense competition. Exercise is an essential requirement to overcome such stresses and to overcome busy routines and intense competition.

However, in order to exercise, it is necessary to find a gym or various sports. However, there is a problem that a separate exercise fee is required for these exercises and a lot of cost and time are required to find a specific place. It is even harder to have a separate time for exercise due to busy daily life.

In this way, the exercise that does not require any specific sports and does not require a separate place, and does not require exercise cost, is a walking and running exercise.

However, the walking and running exercise has a problem that it is difficult for a person who exercises by himself to know whether he or she is walking and running correctly.

It is a pedometer to supplement this little bit. However, there is a problem that the pedometer simply counts and displays only the number of steps of the user, calculates only the calorie consumption, and can not accurately know whether the user is exercising correctly.

Patent No. 10-1219947 Published Patent No. 10-2005-0052555

Accordingly, an object of the present invention is to provide a gyro sensor for measuring gait through gait recognition using a gyro sensor attached to a body and determining a gyro state according to the measured gyre, Measuring apparatus and method.

According to another aspect of the present invention, there is provided an apparatus for measuring a motion state using a gyro sensor, the apparatus comprising: a gyro sensor attached to a user's body to measure a movement of the user according to a user's gait and output a motion detection signal; An amplitude measuring unit for detecting a peak of the waveform of the motion detection signal generated according to the step and measuring and outputting a peak value which is the intensity of the detected current peak and a peak value based on a previous peak value which is the intensity of the previous peak; A storage unit storing step intensity information by peak amplitude value and information on the age, weight, and exercise history information of the user, and storing information on the appropriate exercise amount according to age, weight, and exercise history information; And a controller for measuring movement information by the step of measuring the peak value and the peak amplitude value measured by the amplitude measuring unit, wherein the controller includes: a peak counting unit for counting the number of times of inputting the peak value input from the amplitude measuring unit, part; A step-strength measuring unit for measuring step-intensity information, which is motion information, by searching the storage unit for step-intensity information corresponding to the peak amplitude value; A step number measuring unit for measuring the number of steps, which is exercise information, according to the number of counts of the peak value; A period measuring unit for measuring a period by a detection interval of the peak value; A gait speed measuring unit for measuring gait speed, which is motion information, according to the measured period; And comparing the measured exercise information and the measured exercise information according to the user's weight and history information to determine whether exercise has been performed corresponding to the appropriate exercise amount according to the weight and history information, And a motion efficiency determination unit for displaying the motion state information.

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And the walking speed is measured by the following equation (1).

[Equation 1]

Speed = Pace factor against speed * (number of steps per minute) * Height *

The appropriate exercise amount information is characterized by being the exercise speed and the exercise intensity according to the measured exercise information and the user's weight and history information.

The apparatus may further include an alarm unit for generating at least one of a buzzer sound, a warning sound, a warning sound, vibration, lighting and flashing of the light emitting diode, and lighting and blinking of the display device, Comparing the measured exercise amount information to determine whether the measured exercise amount is maintained, and if the measured exercise amount is not maintained, drives the alert unit.

The gyro sensor is characterized in that the gyro sensor is positioned in a wrist having a large reciprocating motion.

According to another aspect of the present invention, there is provided a method of measuring a motion state using a gyro sensor, the method comprising: measuring a motion of a user through a gyro sensor; A peak detection step of detecting a peak of the waveform of the motion detection signal and measuring a peak amplitude value by a previous peak value which is an intensity of the previous peak and a current peak value which is the intensity of the detected current peak; A motion information measurement step of measuring motion information by walking based on the peak value and the peak amplitude value; And evaluating the exercise efficiency of the user by comparing the measured exercise information and an appropriate exercise amount according to the age, weight, and history information stored in advance after the exercise information measurement.

The motion information measuring step may include: a peak counting step of counting the number of peak values input from the amplitude measuring unit; A step of measuring a step strength by searching for the step strength information corresponding to the peak amplitude value from the black strength information for each peak amplitude value stored in advance in the storage unit; A step counting step of measuring the number of steps, which is exercise information, according to the number of counts of the peak value; A period measuring step of measuring a period by a detection interval of the peak value; And a step of measuring a step of measuring a walking speed, which is exercise information, according to the measured period.

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Wherein the exercise information measuring step further includes a exercise time measuring step of measuring a exercise time, wherein the exercise efficiency evaluating step includes: a reference exercise time duration calculating step of calculating a exercise time based on the exercise time and the age, And the motion efficiency of the user is evaluated.

And the walking speed is measured by the following equation (1).

[Equation 1]

Speed = Pace factor against speed * (number of steps per minute) * Height *

The method includes: an alarm generating step of generating an alarm by driving the alarm unit when it is determined that the measured motion information is not maintained in the measured motion information by comparing the measured motion information with a preset optimal exercise amount information during the exercise efficiency evaluation process; And further comprising:

The generated alarm may be at least one of a buzzer sound, a warning sound, a warning sound, a vibration, lighting and flashing of a light emitting diode, lighting and blinking of a display device.

The determination as to whether or not to maintain the appropriate momentum amount is determined by whether the strength of the step and the exercise speed due to the walking speed by the step of the measured exercise information are within a predetermined range of the exercise intensity and the exercise speed set in advance do.

The gyro sensor is positioned on the wrist so that the motion detection signal having a large peak amplitude value is output in the motion measurement process.

The present invention recognizes the movement of the arms and legs using the gyro sensor, and thus has the effect of measuring and displaying various kinds of exercise information at the time of the step such as the number of steps, the strength of the step, and the step speed.

In addition, the present invention provides exercise state information indicating whether the user is appropriately exercising by the exercise information such as the number of steps, strength, and speed using the gyro sensor, that is, whether or not a constant exercise speed and strength are maintained It has an effect that can be displayed.

As described above, according to at least one of the body weight and the number of exercise days and the exercise period of the user, it is possible to inform the user whether the exercise state for the current exercise is proper, sufficient, or insufficient. .

FIG. 1 is a view showing a configuration of a motion state measuring apparatus using a gyro sensor according to the present invention.
2 is a diagram showing an output waveform of a gyro sensor according to a user's movement according to an embodiment of the present invention.
3 is a flowchart illustrating a method of measuring motion information by a user's motion recognition using the gyro sensor according to the present invention.
4 is a flowchart illustrating a method of measuring a motion state according to exercise information measured according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration and operation of a gyro sensor using the gyro sensor according to the present invention will be described with reference to the accompanying drawings, and a method for measuring motion information and motion state information in the apparatus will be described.

FIG. 1 shows a configuration of a gyro sensor using a gyro sensor according to the present invention, and FIG. 2 shows an output waveform of a gyro sensor according to a user's movement according to an embodiment of the present invention. Hereinafter, description will be made with reference to Figs. 1 and 2. Fig.

The apparatus for measuring a motion state according to the present invention includes a gyro sensor 10, an amplitude measurement unit 20, a storage unit 30, a control unit 40, an input unit 50, a display unit 60 and an alarm unit 70 And is worn on an arbitrary body part of the user to measure exercise information according to the user's movement and determine the exercise state. Particularly, in order to measure the motion information of the user more accurately, it is preferable that the motion state measuring device is worn on the wrist and forearm of the user.

The gyro sensor 10 operates when power is supplied or under the control of the control unit 40 and is operated by a user's step at a position such as the user's wrist, forearm, ankle, leg (thigh) The motion of the body part such as the wrist, the forearm, the ankle, the leg, and the like according to the motion of the user, and the motion detection signal as shown in FIG. 2 is output according to the detected motion.

The amplitude measuring unit 20 detects the peak 201 of the motion detection signal and detects the peak value 201 corresponding to the amplitude 203 of FIG. 2 according to the previous peak value and the current peak value, Value to the control unit 40.

The storage unit 30 stores black intensity information according to the peak amplitude value, user information such as the user's age, weight and key, exercise history information, and appropriate exercise amount information according to the user information and exercise history information. The exercise history information may be information such as the date and time of exercise performed by the user. The appropriate exercise amount information according to the exercise history information may be exercise amount information according to the time and period during which the user exercises. For example, in the case of a beginner, the appropriate exercise information may be 1000 steps per 10 minutes, a speed of 3 km / h, etc. In the case of the beginner's level 2, the appropriate exercise amount information is 1,200 steps in 10 minutes, In the case of an intermediate person, the appropriate exercise information may be 1500 steps in 10 minutes, speed of 4 km / h, and the like. The level may be determined by exercise time and duration. However, if the user does not exercise for a certain period of time, it may be set as a beginner because it is determined that the exercise is started even if the exercise is performed to the intermediate level. The appropriate exercise amount information may be exercise amount information according to the time and duration of exercise performed by the user as described above, may be information of a correct exercise amount statistically defined according to the user information such as the age and weight of the user, It may be your own set of momentum information. The appropriate exercise amount information may be exercise speed and intensity.

The input unit 50 includes at least one button for turning on / off the power, starting / stopping the movement, confirming the exercise information, and confirming the exercise status information, and outputs the button signal for the button pressed by the user to the control unit 40 .

The display unit 60 displays user information, movement information, and movement state information according to the operation state and operation state of the movement state measurement apparatus of the present invention.

The alarm unit 70 generates an alarm under the control of the control unit 40. The alarm may be a buzzer, a warning sound, a warning sound, a vibration, an LED lighting or blinking, and the like.

The control unit 40 includes a timer (not shown) for counting each type of time, and controls the overall operation of the exercise condition measuring apparatus according to the present invention. In particular, the control unit 40 measures the number of steps, the strength of the stepping, and the stepping speed, which are exercise information, based on the peak amplitude value input from the amplitude measuring unit 20, And the user's exercise state is determined by comparing the exercise amount information. In addition, the controller 40 informs the user through the alert unit when the measured exercise information measured during exercise is a predetermined exercise amount information, for example, a measured exercise speed and intensity are out of preset exercise speed and intensity.

More specifically, the control unit 40 includes a peak counting unit 41, a stepping strength measuring unit 42, a period measuring unit 43, a step count measuring unit 44, a stepping velocity measuring unit 45, And a determination unit (46).

The peak counting unit 41 receives the peak value output from the amplitude measuring unit 20 and counts the input number of strokes. The peak value may be input with alternating positive or negative numbers.

The step strength measuring unit 42 measures the step strength corresponding to the peak amplitude value input from the amplitude measuring unit 20 by referring to the step strength information for each peak amplitude value stored in advance in the storage unit 30. [ The step strength information for each peak amplitude value may vary depending on the height (height) and weight of the user. The step intensity information by the peak amplitude value may be obtained by experiment. For example, when the weight is 60 Kg and the height is 175 cm, when the peak amplitude is 0.15 V, the step strength is 1, 0.2 V, the step strength is 2, the weight is 70 Kg, and the height is 175 cm. If the peak amplitude value is 0.2V, the step intensity will be databaseed as the first order.

The period measuring unit 43 detects the period 202 of FIG. 2 in accordance with the peak value counting signal output from the peak counting unit 41, and outputs a period detecting signal at every detection. The period measuring unit 43 counts one period when the peak value counting signal is inputted twice as shown in FIG.

The step counting unit 44 counts the period detection signal output from the period measuring unit 43 and counts and outputs the number of steps. The counting unit 41 counts the counting signal input from the peak counting unit 41, You can also measure the number.

The walking speed measuring unit 45 receives the number of steps output from the number-of-steps measuring unit 44 and the period output from the period measuring unit 43, And calculates and outputs the walking speed.

The above-mentioned speed-to-speed ratio and the height-to-height stride averaging can be obtained by experiment and statistical values.

The exercise efficiency determining unit 46 calculates the walking speed, the number of steps output from the step number measuring unit 44, and the walking speed output from the walking speed measuring unit 45, from the walking strength measuring unit 42, And compares the inputted exercise information with the appropriate exercise amount information stored in the storage unit 30 to determine the efficiency of the exercise currently performed by the user and displays the result on the display unit 60. The alarm unit 70 ), That is, an alarm occurs due to suitability, insufficiency or excess.

3 is a flowchart illustrating a method of measuring motion information by a user's motion recognition using the gyro sensor according to the present invention.

Referring to FIG. 3, the controller 40 starts counting the exercise time through a timer (not shown) when the exercise start command is input from the input unit 50 (S111).

After starting the counting of the exercise time, the controller 40 drives the gyro sensor 10 to start the user movement detection through the gyro sensor 10 (S113).

When the user motion detection is started, the control unit 40 checks whether a peak of the motion detection signal outputted from the gyro sensor 10 is detected through the amplitude measurement unit 20 (S115).

When a peak is detected, the control unit 40 measures the step strength through the step strength measuring unit 42 (S117), counts the peak detection time interval detected through the peak counting unit 41 by a timer (not shown) And the period is measured (S119).

When the peak period is measured, the control unit 40 determines whether or not the peak amplitude value is greater than a predetermined value by at least one of the peak amplitude value counting signal input from the peak counting unit 41 and the period detecting signal of the period measuring unit 43 via the step number measuring unit 44 The number of steps is measured (S121).

When the number of steps is measured, the controller 40 calculates the walking speed by applying the obtained exercise information, that is, the step strength, the number of steps, and the period to the equation (1) through the walking speed measuring unit 45 (S123) .

When the walking speed is calculated, the controller 40 controls the exercise efficiency determining unit 46 to calculate exercise information including the step strength, the number of steps, the walking speed and the counted exercise time, The information is compared and the exercise efficiency is measured (S125).

When the exercise efficiency is determined, the controller 40 displays the exercise state information, which is result information on the exercise information and the exercise efficiency, on the display unit 60, (S127).

The above process will be repeated until the end of exercise command is input from the input unit 50 or the power is turned off.

4 is a flowchart illustrating a method of measuring a motion state according to exercise information measured according to the present invention. The motion efficiency, that is, the method of measuring the motion state will be described in more detail with reference to FIG.

The control unit 40 loads the exercise information obtained from the step strength measuring unit 42, the step number measuring unit 44, and the walking speed measuring unit 45 when the exercise efficiency measurement, that is, the exercise state determination, is started (S211 ).

When the exercise information is loaded, the controller 40 determines whether the strength of the step is within the reference intensity range of the user's information such as the user's key, weight, age, and the appropriate exercise amount information according to the exercise history information (S213) (Step S217), whether the walking speed is within the reference speed range (S221), whether the exercise time is within the set time range (S225), or whether the measured value exceeds the reference value for each of the judgments (S215, S219 , S223, and S227.

If the determination factors (step intensity, step count, walking speed, and exercise time) are all within the reference range, the control unit 40 determines that the current exercise amount is a proper exercise amount, displays the result information on the display unit 60 , And an alarm is provided through the alarm unit 70 (S229). The appropriate exercise amount may be defined as a predetermined exercise intensity and a predetermined exercise speed. The exercise intensity may be determined solely by the strength of the step, and may be determined in combination depending on the step strength, the walking speed, and the exercise time. And the speed of motion may be determined by the speed of the foot.

However, if any one of the determination factors is out of the reference range, the control unit 40 determines whether the motion is excessive or not, and if it exceeds one of the determination factors, the control unit 40 determines that the motion is excessive and displays the result on the display unit 60 And generates an alarm corresponding to the result determined through the alarm unit 70 (S231).

If any one of the determination factors is less than the reference range, the controller 40 determines that the exercise is insufficient, displays the result through the display unit 60, and transmits the result through the alarm unit 70 An alarm is generated (S233).

In the above description, the case in which all the exercise information is judged as the enemy exercise only when all the exercise information is within the reference range has been described. However, after calculating the total score according to the proximity of the reference to each of the judgment factors, It is possible to determine whether or not the exercise is appropriate.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be easily understood. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, it is intended to cover various modifications within the scope of the appended claims.

10: Gyro sensor 20: Amplitude measuring unit
30: storage unit 40: control unit
41: peak counting unit 42: step strength measuring unit
43: period measuring unit 44: step count measuring unit
45: step speed measuring part 50: input part
60: display unit 70: alarm unit
201: peak 202: cycle

Claims (16)

A gyro sensor attached to a user's body to measure a movement of the user according to a user's step and output a motion detection signal;
An amplitude measuring unit for detecting a peak of the waveform of the motion detection signal generated according to the step and measuring and outputting a peak value which is the intensity of the detected current peak and a peak value based on a previous peak value which is the intensity of the previous peak;
A storage unit storing step intensity information by peak amplitude value and information on the age, weight, and exercise history information of the user, and storing information on the appropriate exercise amount according to age, weight, and exercise history information; And
And a controller for measuring motion information based on the peak value and the peak amplitude value measured by the amplitude measuring unit,
Wherein,
A peak counting unit for counting an input number of peak values input from the amplitude measuring unit;
A step-strength measuring unit for measuring step-intensity information, which is motion information, by searching the storage unit for step-intensity information corresponding to the peak amplitude value;
A step number measuring unit for measuring the number of steps, which is exercise information, according to the number of counts of the peak value;
A period measuring unit for measuring a period by a detection interval of the peak value;
A gait speed measuring unit for measuring gait speed, which is motion information, according to the measured period; And
Comparing the measured exercise information and the measured exercise information according to the user's weight and history information to determine whether exercise has been performed corresponding to the appropriate exercise amount according to the weight and history information, And a motion efficiency determination unit that displays state information of the gyro sensor.
delete delete The method according to claim 1,
The step-
Wherein the gyro sensor is measured by the following equation (1).
[Equation 1]
Speed = Pace factor against speed * (number of steps per minute) * Height *
The method according to claim 1 or 4,
Wherein the appropriate exercise amount information is a speed and an intensity according to the measured exercise information and the user's weight and history information.
The method according to claim 1,
Further comprising an alarm unit for generating at least one of a buzzer sound, a warning sound, a warning sound, vibration, lighting and flashing of the light emitting diode, lighting and flashing of the display device,
Wherein the control unit compares the measured exercise information with a preset appropriate exercise amount information to determine whether the exercise amount is maintained, and when the exercise amount is not maintained, the control unit drives the alert unit Device.
The method according to claim 1,
Wherein the gyro sensor is configured to be positioned in a wrist having a large reciprocating motion.
A motion measurement process for outputting a motion detection signal according to a user's motion through a gyro sensor;
A peak detection step of detecting a peak of the waveform of the motion detection signal and measuring a peak amplitude value by a previous peak value which is an intensity of the previous peak and a current peak value which is the intensity of the detected current peak;
A motion information measurement step of measuring motion information by walking based on the peak value and the peak amplitude value; And
And evaluating a user's exercise efficiency by comparing the measured exercise information with an appropriate exercise amount according to age, weight, and history information stored in advance after the exercise information measurement, and measuring the exercise efficiency using the gyro sensor How to measure.
9. The method of claim 8,
The exercise information measuring process includes:
A peak counting step of counting the number of peak values input from the amplitude measuring unit;
A step of measuring the step strength by measuring the step strength information corresponding to the peak amplitude value from the step strength information per peak amplitude value stored in advance in the storage unit;
A step counting step of measuring the number of steps, which is exercise information, according to the number of counts of the peak value;
A period measuring step of measuring a period by a detection interval of the peak value; And
And measuring a stepping speed, which is motion information, according to the measured period. The method of measuring a movement state using a gyro sensor according to claim 1,
delete 9. The method of claim 8,
The exercise information measuring process includes:
Further comprising a movement time measuring step of measuring a movement time,
In the exercise efficiency evaluation process,
And comparing the exercise time and the reference exercise time according to the age, weight and history information included in the exercise amount to evaluate the exercise efficiency of the user.
12. The method of claim 11,
The step-
Wherein the measurement is performed using the following equation (1).
[Equation 1]
Speed = Pace factor against speed * (number of steps per minute) * Height *
9. The method of claim 8,
The control unit may further include an alarm generating step of generating an alarm by driving the alarm unit when it is determined that the measured exercise information is not maintained in the predetermined momentum amount information by comparing the measured exercise information with the preset optimal exercise amount information A method of measuring the motion state using a gyro sensor
14. The method of claim 13,
Wherein the generated alarm is at least one of a buzzer sound, a warning sound, a warning sound, a vibration, lighting and flashing of a light emitting diode, and lighting and blinking of a display device.
14. The method of claim 13,
The determination as to whether or not to maintain the appropriate momentum amount is determined by whether the strength of the step and the exercise speed due to the walking speed by the step of the measured exercise information are within a predetermined range of the exercise intensity and the exercise speed set in advance A method of measuring a motion state using a gyro sensor.
14. The method of claim 13,
Wherein the gyro sensor is positioned on the wrist so as to output the motion detection signal having a larger peak amplitude value in the motion measurement process.

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