TWI714948B - State of exercise evaluation method - Google Patents

Abstract

A state of exercise evaluation method having following steps is provided. The steps includes: obtaining a plurality of sensing signals by a foot information sensing module,; recording a receiving time of each of sensing signals by a processor and generating a plurality of pressure values, a plurality of center of gravity values, and a center of gravity trajectory information corresponding a human body; determining a start time, an acting time and a finish time corresponding to an exercise by the processor; obtaining an act time value according to the start time, the act time and the finish time; integrating the pressure values, the center of gravity values, the center of gravity trajectory information and the act time value to an user interface.

Description

Exercise state assessment method

The present invention relates to a digital analysis technique, and in particular relates to a method for evaluating exercise status.

Movement is accomplished by the coordination of various parts of the body and a series of momentary actions. Taking baseball hitting as an example, the batting movement must start from preparing the posture, observing and waiting for the ball, adjusting the body parts to the hitting position, lifting the foot, swinging the batting and finally resetting.

In this process, the incorrect batting posture will affect the strength of the batting, the angle of the batting, and the batting time, thus preventing the batting from making good use of his own advantages. In more serious cases, the wrong batting posture will cause the athlete to be injured and cause permanent damage. However, because the momentary action of the ball hitting is very short, and everyone's body structure and force application habits are different, it is difficult for others to obtain accurate posture evaluation results through visual observation. Based on this, how to obtain accurate sports data through instruments and data for posture assessment has gradually become an important topic in sports training.

The present disclosure provides a method for evaluating exercise status, which has the following steps. The foot information sensing module obtains the plural sensing signals of the corresponding human body; the processing unit records the receiving time of each sensing signal, and generates multiple pressure values and multiple center of gravity values of the corresponding human body according to each sensing signal And center of gravity trajectory information; the processing unit determines the start time, launch time, and end time corresponding to a movement based on the receiving time, and at least one of the pressure value, the center of gravity value, and the center of gravity trajectory information; The launch time and the end time obtain the action time length value; and the processing unit integrates the pressure value, the center of gravity value and the center of gravity track information and the action time length value, and provides the integrated result in the user interface.

The present disclosure provides a method for evaluating sports state, which has the following steps. The foot information sensing module obtains the plural sensing signals of the corresponding human body; the processing unit records the receiving time of each sensing signal, and generates multiple pressure values and multiple center of gravity values of the corresponding human body according to each sensing signal And center of gravity trajectory information; the processing unit determines the first center of gravity weight and the second center of gravity of the corresponding feet corresponding to a movement at different reception times based on the receiving time and at least one of the pressure value, the center of gravity value, and the center of gravity trajectory information The processing unit integrates and provides the first center of gravity weight and the second center of gravity weight in the user interface; and the processing unit detects the ratio of the first center of gravity to the second center of gravity from the first weight When the ratio changes to the second weight ratio, a warning notification is issued through the user interface.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

110: Foot information sensing module

120: Photography module

130: processing unit

140: storage unit

S210~S250, S310~S355, S510~S535, S710~S750: steps

FIG. 1 is a schematic diagram of hardware for implementing a sports training assisting method according to an embodiment of the disclosure.

FIG. 2 is a schematic flowchart of a method for evaluating a movement state according to an embodiment of the disclosure.

FIG. 3 is a schematic flowchart of the exercise state evaluation method according to the first embodiment of the disclosure.

4A to 4C show schematic diagrams of the movement state of the first embodiment of the disclosure.

FIG. 5 is a schematic flowchart of the exercise state evaluation method according to the second embodiment of the disclosure.

6A to 6C are schematic diagrams showing the movement state of the second embodiment of the disclosure.

FIG. 7 is a schematic flowchart of a motion state assessment method according to another embodiment of the disclosure.

8A to 8D are schematic diagrams showing the motion state of the motion state evaluation method according to an embodiment of the disclosure.

FIG. 1 is a schematic diagram of hardware for implementing a sports training assisting method according to an embodiment of the disclosure. Referring to FIG. 1, in an embodiment of the present disclosure, the exercise training assistance method is implemented by the cooperation of the foot information sensing module 110, the photographing module 120, the processing unit 130 and the storage unit 140.

The foot information sensing module 110 is used to measure the foot movements of the corresponding tested person Sports data. In particular, in the disclosed embodiment, the foot information sensing module 110 has at least a plantar pressure sensor to detect the plantar pressure of the measured person. For example, the foot information sensing module 110 can be implemented by a pressure sensing chip installed on, under or integrated in the insole. It should be noted that, in order to make the measured data more accurate, the pressure sensing chip will be arranged at least on the toe, heel, left side, and right side of each insole. In the disclosed embodiment, the pressure sensing chip is further arranged in the left insole and the right insole in a uniform, non-overlapping and close proximity.

In other embodiments of the present disclosure, the foot information sensing module 110 also has various types of accelerometers, gyroscopes, or a combination of the two. In the embodiment of the present disclosure, the types or models of the pressure sensor chip, accelerometer, and gyroscope are not limited. Moreover, the present disclosure is not limited to the type of the aforementioned foot information sensing module 110.

The camera module 120 is used for recording images. Moreover, in the embodiment of the disclosure, the photographing module 120 is installed in the sports field to record the movement posture of the person under test. The camera module 120 can be implemented by any type and model of camera, and the disclosure is not limited to this.

The processing unit 130 is used for processing various types of information. In the embodiment of the present disclosure, the processing unit 130, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (Digital Signal Processors) Signal Processor, DSP), programmable controller, etc. The disclosure is not limited to this.

The storage unit 140 is used to store various types of information. In particular, the storage unit 140 can store recorded exercise information of the tested person. In the embodiment of the present disclosure, The storage unit 140 is, for example, but not limited to, any type of fixed or removable random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), and flash memory (flash memory). , Hard Disk Drive (HDD), Solid State Drive (SSD) or similar components or a combination of the above components.

FIG. 2 is a schematic flowchart of a method for evaluating a movement state according to an embodiment of the disclosure. Please refer to FIG. 2, in step S210, the foot information sensing module 110 obtains the plural sensing signals of the corresponding human body. In this embodiment, the foot information sensing modules 110 are respectively arranged in the insoles of the feet of the tested person to obtain the sensing signals corresponding to the pressure of the feet of the tested person. It should be noted that, in the embodiment of the present disclosure, the pressure sensing chip is uniformly, non-overlapping, and adjacent to the left insole and right insole. Therefore, at the same time, the foot information sensing module The group 110 will obtain multiple sensing signals at the same time.

In step S220, the processing unit 130 records the receiving time of each sensing signal, and generates multiple pressure values, multiple center of gravity values, and center of gravity track information of the corresponding human body based on each sensing signal. Specifically, the foot information sensing module 110 transmits the received sensing signal to the processing unit 130. When the processing unit 130 receives the sensing signal, it records the time of the system when the sensing signal is received. Alternatively, the processing unit 130 can create a time sequence by itself, for example, the first received sensing signal is established as the 0th second, and based on the time difference between the subsequently received sensing signal and the first sensing signal Set the receiving time of each sensing signal in sequence. The present disclosure does not limit the receiving time value set by the processing unit 130.

In addition, since the foot information sensing module 110 simultaneously obtains multiple sensing signals at the same time, the processing unit 130 obtains the pressure value corresponding to the sole of the tested person according to the sensing signals. Moreover, since the pressure sensing chips are distributed in multiple places in the insole of the tested person, the processing unit 130 can also learn the pressure distribution of the soles of the feet of the tested person at each time through the pressure value. Furthermore, the processing unit 130 also obtains the value of the center of gravity of the human body at each time according to the pressure distribution of the soles of the feet of the tested person, and obtains the movement track of the center of gravity of the human body accordingly.

In step S230, the processing unit 130 determines the start time, launch time, and end time corresponding to a movement based on the receiving time and at least one of the pressure value, the center of gravity value, and the center of gravity track information. Although the posture and force method of each tested person are different, overall, there will be similar situations in the changes of pressure value, center of gravity value and center of gravity track information. Therefore, the processing unit 130 can determine the start time, launch time, and end time of the exercise through at least one of the pressure value, the center of gravity value, and the center of gravity track information. The detailed process will be illustrated by the following embodiments.

In step S240, the processing unit 130 obtains the action time length value according to the start time, the launch time, and the end time. After knowing the start time, launch time, and end time, the processing unit 130 can not only know the length of the action time required for the process from the start of the action to the end of the action, and furthermore, the processing unit 130 can also know the starting time The value of the length of the pre-action time between to the launch time.

In step S250, the processing unit 130 integrates the pressure value, the center of gravity value, the center of gravity trajectory information, and the action time length value, and provides the integrated result in the user interface. In this way, the coach can view the foot movement of the tested person through the user interface. And then provide corresponding posture suggestions.

It is worth mentioning that, in an embodiment of the present disclosure, the motion state assessment method further captures continuous image information of the corresponding human body through the camera module 120. Here, the continuous image information and the sensing signal will correspond to the same action. Moreover, the continuous image information is further transmitted to the processing unit 130 for processing.

The processing unit 130 analyzes the continuous image information to obtain the activated image in the continuous image information, and obtains the time of the corresponding activation image in the continuous image information according to the activated image.

The processing unit 130 integrates the continuous image information and the pressure value, the center of gravity value and the center of gravity track information according to the activation time and the time of the corresponding activation of the image in the continuous image information. In other words, through the starting action in the paired image and the starting time judged according to the sensing signal, the image and the foot pressure value, center of gravity value and trajectory of the center of gravity movement of the entire process will be integrated when the subject is moving. Together. Based on this, the coach can simultaneously display the corresponding pressure value, center of gravity value, and center of gravity movement trajectory or video screen when selecting a specific image screen or a specific pressure value, center of gravity value, and center of gravity movement track through the user interface. Or, the coach can also specify a specific time through the user interface, and then display the corresponding image screen, pressure value, center of gravity value and center of gravity movement track.

In addition, in an embodiment of the present disclosure, the processing unit 130 will further obtain the movement standard model in the storage unit 140, and input the foot movement state of the tested person into the movement standard model to compare the movement standard Model and continuous image information and pressure value, center of gravity value and center of gravity trajectory information to establish posture evaluation results. The posture evaluation results. For example, the center of gravity of the tested person is too high, the hands are not raised high enough, and the hands are swinging. The distance between the placed position and the center of gravity is too close. In addition, the processing unit 130 may further obtain the recommended adjustment value to provide the measured person for reference. This disclosure is not limited to the manner and content of the posture evaluation results.

The first embodiment and the second embodiment will be used to explain how the processing unit 130 determines the start time, launch time, and end time corresponding to the movement based on the receiving time and at least one of the pressure value, the center of gravity value, and the center of gravity track information. .

In the first embodiment, the sport type is golf. FIG. 3 is a schematic flowchart of the exercise state evaluation method according to the first embodiment of the disclosure. 4A to 4C show schematic diagrams of the movement state of the first embodiment of the disclosure. Please refer to Figure 3 to Figure 4C.

In step S310, the processing unit 130 obtains multiple sets of left foot pressure values and right foot pressure values according to the receiving time, where each set of left foot pressure values and right foot pressure values have the same receiving time. As mentioned above, since the foot information sensing module 110 simultaneously obtains multiple sensing signals generated by pressure sensors distributed on the sole of the foot, and each sensing signal has a corresponding pressure value. Therefore, the processing unit 130 respectively sums all the pressure values of the corresponding left foot sole and the pressure value of the corresponding right foot at each time point to use the respectively summed pressure values as the left foot pressure value and the right foot pressure value . In addition, the processing unit 130 can obtain the center of gravity position and the center of gravity value of the measured person at each receiving time according to multiple pressure values distributed on the soles of both feet, and after sequentially connecting the center of gravity positions at all times, that is, The trajectory of the center of gravity can be obtained.

Please refer to FIG. 4A. The left image of FIG. 4A shows the pressure value of the left foot and the pressure value of the right foot corresponding to the measured person under different receiving time. The picture on the right shows the trajectory of the center of gravity of the tested person.

In order to accurately define the user's plantar center of gravity coordinate range, in this disclosure, two-dimensional coordinates will be used to define the center of gravity range of the left and right feet, such as the range of the left foot base mark (-100~0,0~255), and the right foot sole The coordinate range is (0~100, 0~255). Comprehensive range of feet, the center of gravity of the soles of the feet is (-100~100, 0~255).

Based on the range of the foot base, the processing unit 130 calculates the pressure center of the left foot ( COP _l ) and the center of pressure of the right foot ( COP _r ) of the measured person under different movements based on the foot pressure distribution detected by the pressure sensor To obtain the plantar pressure center ( COP ). Specifically, the processing unit 130 will list the X coordinate of the left foot as a negative value and the X coordinate of the right foot as a positive value according to the foot pressure distribution with the proportional weight of the feet, and calculate the X value and Y value after the weight. Add the values separately to get the weight center (center of gravity) of the body, and connect it in time sequence to obtain the trajectory of the center of gravity.

In step S315, the processing unit 130 obtains the first pressure ratio according to the left foot pressure value and the right foot pressure value at the first receiving time.

In step S320, the processing unit 130 obtains a second pressure ratio according to the left foot pressure value and the right foot pressure value at the second receiving time.

Specifically, the first pressure ratio has a first pressure ratio for the left foot and a first pressure ratio for the right foot. The processing unit 130 first sums up the pressure value P of the left foot at the first time _; and the pressure value P _{r of the} right foot to obtain the total foot pressure P _{t of the} tested person. Then, the processing unit obtains the first pressure ratio of the left foot P _; / P _t and the first pressure ratio of the right foot P _r / P _t . The processing unit 130 obtains the second pressure ratio in the same manner as the first pressure ratio, and will not be repeated here.

In step S325, the processing unit 130 determines the ratio of the first pressure to the second Whether the magnitude of the change between the pressure ratios exceeds the first change threshold.

In step S330, the processing unit 130 sets the first receiving time as the start time when it is determined that the variation range exceeds the first variation threshold.

Specifically, when playing golf, the athlete (person under test) will first spread both feet on the spot while holding the club, and stay for a short period of time to prepare to hit the ball. Also, when the athlete is ready to swing and twist the waist, at this time, the athlete's center of gravity will follow, causing the pressure value of the feet to change. Therefore, the processing unit 130 will determine that if the variation range of the first pressure ratio and the second pressure ratio exceeds the first variation threshold, it means that the center of gravity of the measured person has moved and the action has been started. At this time, the processing unit 130 sets the first receiving time as the start time of the action. Taking Figure 4A as an example, if the first change threshold is plus or minus 5% (but not limited to this), at this time, when the measured person’s left foot pressure is at 01: 37.9 seconds, the measured person’s left foot pressure value and right The foot pressure values are almost the same, that is, the ratio of the first pressure of the left foot and the ratio of the first pressure of the right foot are both about 0.5. However, at 01:38.1 seconds, the pressure value of the left foot of the tested person has exceeded 55% and the pressure value of the right foot has been less than 45%. Therefore, if the variation range of the first pressure ratio and the second pressure ratio exceeds 5% set by the first variation threshold, the processing unit 130 will regard 01:37.9 seconds as the start time of the action.

It is worth mentioning that, in one embodiment, the processing unit 130 will further determine that the first pressure ratio is maintained within the first change threshold for a period of time (for example, 2 seconds) before further performing step S330. In this way, to avoid misrepresenting other behaviors of the tested person, such as walking, drinking, stretching and other non-exercise situations.

In step S335, after the start time, the processing unit 130 will The third receiving time when the foot pressure value is equal to the right foot pressure value is set as the launch time. In this embodiment, the launch time refers to the time when the club hits the ball. Specifically, take an athlete whose posture is the left foot in front of the right foot as an example, the center of gravity will be brought to the right foot when lifting the pole. In addition, when hitting the ball, the twist of the waist will push the center of gravity of the body from the right foot to the left foot, so that the force of the body is brought forward. Therefore, the center of gravity of the left and right feet will be exchanged. Based on this, the processing unit 130 will determine that after the start time, and when the pressure value of the left foot is equal to the pressure value of the right foot (that is, the time point when the centers of gravity of the two feet are exchanged), the corresponding third receiving time is the time point of the shot. . Based on this, the processing unit 130 sets the third receiving time as the launch time.

In step S340, the processing unit 130 obtains a fourth pressure ratio according to the left foot pressure value and the right foot pressure value at the fourth receiving time. In step S345, the processing unit 130 obtains a fifth pressure ratio according to the left foot pressure value and the right foot pressure value at the fifth receiving time. The method for the processing unit 130 to obtain the fourth pressure ratio and the fifth pressure ratio is the same as the method for obtaining the first pressure ratio in step S315, which will not be repeated here.

In step S350, the processing unit 130 determines whether the magnitude of change between the fourth pressure ratio and the fifth pressure ratio exceeds the second change threshold.

In step S355, when the processing unit 130 determines that the change range does not exceed the second change threshold, the fourth receiving time is set as the end time.

Specifically, after hitting the ball, the athlete will release the bar to release the power of the body, and then close the bar. When retracting, the body will maintain a certain posture for a short period of time. Therefore, the processing unit 130 detects that the ratio of the fourth pressure at the fourth time and the ratio of the fifth pressure at the fifth time does not exceed the second change threshold after the activation time, which is deemed to be The tester has closed the pole. Continuing to take Fig. 4A as an example, if the second change threshold is plus or minus 5%, the fourth pressure ratio obtained at 01:39.9 seconds and the fifth pressure ratio obtained at 01:40.02, the amplitude of the left and right foot changes No more than 5%. Therefore, the processing unit 130 sets 01:39.9 seconds as the end time.

Not only that, in one embodiment, the processing unit 130 may further determine that the fourth pressure ratio at the fourth time and the fifth pressure ratio at the fifth time must be maintained within the fluctuation range for a period of time (for example, 1 second). It will be judged that the tested person is in the retracting posture. In this way, it is avoided to draw conclusions too quickly, so that when the tested person is still swinging, it is mistakenly recorded as the action has ended.

It is worth mentioning that in the embodiment of the present disclosure, the processing unit 130 also uses the center of gravity value and the center of gravity track to assist in determining the start time, the start time, and the end time. For example, when the center of gravity of the tested person is located in a specific area, or the center of gravity value is located in the center of gravity position that matches the initial action, and the conditions of steps S315~S330, S335, and S340~S355 are met, the starting point will be determined based on this Time, launch time, and end time. For example, the standard of the center of gravity value and the position of the center of gravity is, for example, the y-axis coordinate of the center of gravity position is around 100 at the start time, and the x-axis coordinate of the center of gravity position is at the center of the body 0. At the time of launch, the y-axis coordinate of the center of gravity is about 110, and the x-coordinate is on the left foot but off the center of the body between -30 and 0. At the end time, the y-axis coordinate of the center of gravity is about 120, and the center of gravity is on the left foot. This disclosure is not limited to this.

Please continue to refer to FIGS. 4A to 4C. It is worth mentioning that in an actual measurement scenario of this disclosure, Figure 4A corresponds to the sports record of a female athlete, Figure 4B The corresponding is a sports record of a male athlete, and Fig. 4C corresponds to the sports record of a coach. Based on Figures 4A to 4C, it can be clearly seen that the trajectory of the center of gravity of female athletes is relatively smooth, while the trajectory of the center of gravity of the coach is relatively undulating. In addition, the pressure on the coach's feet is relatively stable. In addition, female athletes have a longer interval between starting time and launch time, while coaches have a shorter interval between starting time and launch time. Therefore, compared with coaches, female athletes have insufficient acceleration during the swing, resulting in the ball not flying far enough. Based on this, the coach can integrate the information on the user interface through the processing unit 130 to adjust the athlete's posture.

FIG. 5 is a schematic flowchart of the exercise state evaluation method according to the second embodiment of the disclosure. 6A to 6C are schematic diagrams showing the movement state of the second embodiment of the disclosure. Please refer to FIGS. 5 to 6C. In the second embodiment, the movement is an example of a baseball hitting.

In step S510, the processing unit 130 obtains multiple sets of left foot pressure values and right foot pressure values according to the receiving time. Step S510 is similar to step S310, and will not be repeated here. Also, please refer to Figure 6A. The upper left graph is the pressure value of the left foot of the subject at each time, the middle left graph is the pressure value of the right foot of the subject at each time, and the bottom left graph is the foot pressure of the subject at each time. Pressure value. Please refer to Fig. 6B, the trajectory of the center of gravity of the measured person can be integrated into Fig. 6B.

In step S515, the processing unit 130 sets the sixth receiving time when one of the left foot pressure value and the right foot pressure value drops to the start threshold value as the start time.

In detail, in baseball, the batter puts the center of gravity on the back foot in the preparation position, and the front foot touches the ground but maintains a flexible state of movement. Therefore, the processing unit 130 It is detected that the pressure value of one of the feet has fallen below the start threshold, it is determined that the beater is in the preparation posture, and the corresponding sixth receiving time is set as the start time. Taking Figure 6A as an example, the pressure value of one foot can be seen to be significantly reduced at the position marked by the circle.

Moreover, in an embodiment of the present disclosure, the processing unit 130 will further determine that the pressure ratio must be maintained within the fluctuation range for a period of time (for example, 1 second) before determining that the person under test is in the preparation posture. In this way, to avoid misrepresenting other behaviors of the tested person, such as walking, drinking, stretching and other non-exercise situations.

In addition, in the embodiment of the present disclosure, the processing unit 130 also uses the center of gravity value and the center of gravity trajectory to assist in determining the start time, that is, when the center of gravity of the tested person is located in a specific area, the start time is determined based on this. . For example, if the y-axis coordinate of the center of gravity position is between 150 and 170, and the x-axis coordinate of the center of gravity position is between -10 and 10, and the condition of step S510 is met, the processing unit 130 will set the sixth receiving time to Start time. Based on this, the accuracy of the recording start time of the processing unit 130 is increased.

In step S520, the processing unit 130 obtains the total pressure of the seventh receiving time according to the left foot pressure value and the right foot pressure value of the seventh receiving time.

In step S525, the processing unit 130 obtains the total pressure of the eighth receiving time according to the left foot pressure value and the right foot pressure value of the eighth receiving time.

Specifically, the total pressure of the seventh receiving time is the sum of the pressure value of the left foot and the pressure value of the right foot at the seventh receiving time, that is, P _t . The total pressure of the eighth receiving time is the sum of the pressure value of the left foot and the pressure value of the right foot at the eighth receiving time.

In step S530, when the processing unit 130 determines that the difference between the total pressure of the seventh receiving time and the total pressure of the eighth receiving time is greater than the activation threshold, the first 7. The receiving time is the launch time. Specifically, at the moment of the blow, the front foot of the beater will lift up. At this time, the overall pressure of the beater's body will instantly decrease. Moreover, after hitting the ball, the beater’s foot will step forward, causing the overall pressure on the whole body to increase instantly. Based on this, when the processing unit 130 determines that the difference between the total pressure of the seventh receiving time and the total pressure of the eighth receiving time is greater than the activation threshold, it is determined that the beater lifted his foot at the seventh receiving time, and thus the seventh receiving time Set as the activation time.

In step S535, the processing unit 130 sets the ninth receiving time when the other of the left foot pressure value and the right foot pressure value drops to the end threshold value as the end time. When the beater finishes the blow, the center of gravity of the beater moves from the back foot to the front foot, so the pressure value of the back foot will be reduced. Based on this, the processing unit 130 will determine that the hitter has completed the strike when the pressure value of the hind foot is less than the end threshold, and set the corresponding ninth receiving time as the completion time.

In addition, the processing unit 130 will also simultaneously use the center of gravity value and the center of gravity trajectory to assist in determining the end time, that is, when the center of gravity of the measured person is located in a specific area, the start time will be determined based on this. For example, if the y-axis coordinate of the center of gravity position is above 140, and the x-axis coordinate of the center of gravity position is between -10 and 10, and the condition of step S510 is met, the processing unit 130 will set the ninth receiving time as the end time . Based on this, the accuracy of the recording end time of the processing unit 130 is increased.

In one embodiment, the processing unit 130 further determines that the back foot pressure value must be maintained below the end threshold for a period of time (for example, 1 second) before determining that the person under test is in the posture of completing the blow. In this way, it is avoided to draw conclusions too quickly, so that when the tested person is still hitting, it is mistakenly recorded as the action has ended.

It is worth mentioning that Fig. 6B is based on the trajectory of the center of gravity measured by the athlete on the right, and Fig. 6C is the trajectory of the center of gravity measured by the athlete on the left. According to Figures 6B and 6C, the direction of the trajectory of the center of gravity measured by the left hitter and the right hitter is opposite.

FIG. 7 is a schematic flowchart of a motion state assessment method according to another embodiment of the disclosure. Please refer to FIG. 7, in step S710, the foot information sensing module obtains the plural sensing signals of the corresponding human body.

In step S720, the processing unit 130 records the receiving time of each sensing signal, and generates multiple pressure values, multiple center of gravity values, and center of gravity track information of the corresponding human body according to each sensing signal. Steps S710 to S720 are similar to step S210 and step S220, and will not be repeated here.

In step S730, the processing unit 130 determines the first center-of-gravity weight and the second center-of-gravity weight corresponding to the movement at different reception times according to the receiving time and at least one of the pressure value, the center of gravity value, and the center of gravity track information. Step S730 is similar to step S230, but it should be noted that after obtaining the pressure values of the corresponding feet of the tested person, the processing unit 130 will further obtain the weight of the center of gravity of the tested person according to the pressure values of the feet. For example, the weight of the first center of gravity and the weight of the second center of gravity of the tested person are 45% and 55% respectively. The details of obtaining the pressure value of the feet by the processing unit 130 according to the sensing signal can further refer to the steps S315 and S320 of the corresponding step S230, which will not be repeated here.

In step S740, the processing unit 130 integrates and provides the center of gravity weight in the user interface. In this way, the coach or guard can display the weight through the user interface Heart weight, observe the state of the tested person.

In step S750, when the processing unit 130 detects that the ratio of the first center of gravity to the second center of gravity changes from the first weight ratio to the second weight ratio, a warning notification is issued through the user interface.

Specifically, whether a person is walking, jogging or fast running, the body is in a balanced state, the center of gravity weight is the same. Therefore, if the weight of the center of gravity of the tested person is significantly different, it may be because the tested person's foot is injured, causing the tested person to shift the center of gravity on the injured part to the uninjured part. Based on this, if the processing unit 130 detects that the ratio of the first center-of-gravity weight to the second center-of-gravity weight is changed from the first weight ratio to the second weight ratio, it can be reasonably suspected whether the tested person is injured. Based on this, the processing unit 130 issues a warning notification through the user interface. The warning notifications are, for example, sound prompts, screen message prompts, etc. The disclosure is not limited to this. In addition, in order to find out the athlete's injury situation more accurately, in an embodiment of the disclosure, the processing unit 130 will further determine whether the change range between the first weight ratio and the second weight ratio is greater than a warning threshold ( For example, 30%). That is to say, if the first weight ratio is 0.45:0.55 and the second weight ratio is 0.65:0.35, the change range of the first weight ratio and the second weight ratio will be greater than the warning threshold, so that the processing unit 130 Alert notifications are issued through the user interface.

Not only that, in this embodiment, the processing unit 130 will further determine whether the second weight ratio is maintained for a period of time (for example, 1 minute). In this way, it is avoided that when the tested person simply wants to stretch and changes his posture, or temporarily changes the center of gravity in response to special conditions on the road, the processing unit 130 is sent through the user interface. A false alarm occurred.

Please continue to refer to FIGS. 8A to 8D. FIGS. 8A to 8D are schematic diagrams of the motion state of the motion state evaluation method according to an embodiment of the disclosure. 8A to 8C are corresponding to the actual case of the present disclosure, the measured person uses walking, jogging, and fast running to draw the pressure value of the feet (left) and the center of gravity movement track (right). FIG. 8D is a schematic diagram corresponding to a possible center of gravity movement trajectory when the tested person is injured and walking in an implementation case of the present disclosure.

In Figures 8A to 8C, it can be clearly seen that the cadence of the tested person is slower when walking, and the cadence is faster when running fast. Not only that, when walking or running fast, the subject will show a similar trajectory of the center of gravity, that is, a butterfly-shaped trajectory. However, when jogging and fast running, the area of the butterfly shape will be larger and the user's center of gravity will be more obvious. In other words, when jogging and fast running, the shift of the center of gravity of the tested person is more intense.

In Fig. 8D, if the tested person is injured, compared to the walking center of gravity movement trajectory in Fig. 8A, the size of the butterfly on the left and right will be obviously different, and the center of gravity will be obviously changed.

It is worth mentioning that in some embodiments of the disclosure, the foot information sensing module 110 further includes an accelerometer and a gyroscope. The foot information sensing module 110 receives the acceleration sensing value and the angular velocity sensing value, and then the processing unit 130 integrates the acceleration sensing value and the angular velocity sensing value and provides it in the user interface. In detail, through the accelerometer, the processing unit 130 can further obtain the vector of the measured person's foot based on the data measured by the accelerometer. For example, the subject’s left foot will become uncomfortable It feels approaching to the front left, so the subject will lean to the left when walking in a straight line. Through the gyroscope, the processing unit 130 can further know the angle between the heel and the ground when the tested person is walking or running, or the angle between the toe and the ground when the toe is lifted. Number of angles.

In addition, the exercise state evaluation method disclosed in the present disclosure is applicable to all kinds of click ball sports, and automatically records the start time, launch time, and end time of the corresponding motion according to the attributes of the click ball movement. Alternatively, the method for evaluating the state of exercise disclosed in the present disclosure is also applicable to various sports such as marathon, running, football, etc., to react immediately to athletes' foot injuries.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the scope of the attached patent application.

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Claims (10)

A method for evaluating a motion state includes: acquiring a plurality of sensing signals of a corresponding human body by a foot information sensing module; recording the receiving time of each sensing signal by a processing unit, and generating a corresponding human body based on each sensing signal Multiple pressure values, multiple center of gravity values, and center of gravity trajectory information; the processing unit determines the start of a movement based on the receiving times, and at least one of the pressure values, the center of gravity values, and the center of gravity trajectory information Start time, launch time, and end time; the processing unit obtains the action time length value according to the start time, the launch time, and the end time; and the processing unit integrates the pressure values, the center of gravity values, and the center of gravity Trajectory information and the action time length value, and provide the integrated result in a user interface, wherein the processing unit is based on the receiving time, and at least the pressure values, the center of gravity values, and the center of gravity trajectory information One, the step of judging the start time, the launch time, and the end time corresponding to the exercise further includes: obtaining, by the processing unit, multiple sets of left foot pressure values and right foot pressure values according to the receiving times, The receiving time of each group of left foot pressure value and right foot pressure value is the same; the processing unit obtains the first pressure ratio according to the left foot pressure value and the right foot pressure value at the first receiving time; The processing unit obtains the second pressure ratio according to the left foot pressure value and the right foot pressure value at the second receiving time; the processing unit determines whether the change range between the first pressure ratio and the second pressure ratio exceeds the first pressure ratio A change threshold; and when the processing unit determines that the change range exceeds the first change threshold, the first receiving time is set as the start time. For example, the motion state assessment method described in item 1 of the scope of patent application further includes: capturing a continuous image information corresponding to the human body by the photographing module; and analyzing the continuous image information by the processing unit to obtain the continuous image information. According to the starting image, the time corresponding to the starting image in the continuous image information is obtained according to the starting image; and the processing unit integrates the continuous image according to the starting time and the time corresponding to the starting image in the continuous image information Information and the pressure values, the center of gravity values, and the center of gravity track information. For example, the exercise state evaluation method described in item 2 of the scope of patent application further includes: obtaining, by the processing unit, an action standard model in a storage unit, and comparing the action standard model with the continuous image information and the pressure values, The center of gravity value and the center of gravity track information are used to generate the attitude evaluation result. For example, in the exercise state evaluation method described in the scope of patent application 1, the processing unit is based on the receiving time, the pressure values, the center of gravity values, and the The step of determining at least one of the center-of-gravity track information corresponding to the start time, the start time, and the end time of the exercise further includes: the processing unit will be after the start time and the left foot pressure The third receiving time when the value is equal to the right foot pressure value is set as the launch time. For example, the method for evaluating the state of motion according to claim 1, wherein the processing unit determines that it corresponds to the receiving time, and at least one of the pressure values, the center of gravity values, and the center of gravity track information. The steps of the start time, the start time, and the end time of the exercise further include: obtaining, by the processing unit, a fourth pressure ratio according to the left foot pressure value and the right foot pressure value at the fourth receiving time; The unit obtains a fifth pressure ratio according to the left foot pressure value and the right foot pressure value at the fifth receiving time; and the processing unit determines whether the change range between the fourth pressure ratio and the fifth pressure ratio exceeds the second change Threshold; when the processing unit determines that the change range does not exceed the second change threshold, the fourth receiving time is set as the end time. For example, the motion state evaluation method described in item 1 of the scope of patent application further includes: receiving acceleration sensing value and angular velocity sensing value by the foot information sensing module; and integrating the acceleration sensing value and the acceleration sensing value by the processing unit The angular velocity sensing value is provided in the user interface. A method for evaluating a motion state includes: acquiring a plurality of sensing signals of a corresponding human body by a foot information sensing module; recording the receiving time of each sensing signal by a processing unit, and generating a corresponding human body based on each sensing signal A plurality of pressure values, a plurality of center of gravity values, and center of gravity trajectory information; the processing unit judges that a movement is different according to the receiving time, and at least one of the pressure values, the center of gravity values, and the center of gravity trajectory information. A first center-of-gravity weight and a second center-of-gravity weight of the corresponding feet at the receiving time; the processing unit integrates and provides the first center-of-gravity weight and the second center-of-gravity weight in the user interface; and When the processing unit detects that the ratio of the first center-of-gravity weight to the second center-of-gravity weight changes from the first weight ratio to the second weight ratio, a warning notification is issued through the user interface. A method for evaluating a motion state includes: acquiring a plurality of sensing signals of a corresponding human body by a foot information sensing module; recording the receiving time of each sensing signal by a processing unit, and generating a corresponding human body based on each sensing signal Multiple pressure values, multiple center of gravity values, and center of gravity trajectory information; the processing unit determines the start of a movement based on the receiving times, and at least one of the pressure values, the center of gravity values, and the center of gravity trajectory information Start time, launch time and end time; The processing unit obtains the action time length value according to the start time, the launch time, and the end time; and the processing unit integrates the pressure values, the center of gravity values, the center of gravity trajectory information, and the action time length value, And provide the integrated result in a user interface, wherein the processing unit determines the corresponding motion according to the receiving time, the pressure values, the center of gravity values, and at least one of the center of gravity track information The steps of starting time, starting time, and ending time further include: obtaining, by the processing unit, multiple sets of left foot pressure values and right foot pressure values according to the receiving times, wherein each set of left foot pressure values The receiving time of the pressure value of the right foot is the same as that of the right foot; and the processing unit sets the sixth receiving time when one of the pressure value of the left foot and the pressure value of the right foot drops to the activation threshold as the starting time. For example, in the exercise state evaluation method described in item 8 of the scope of patent application, the processing unit judges corresponding to the receiving time, and at least one of the pressure values, the center of gravity values, and the center of gravity track information. The steps of the start time, the launch time, and the end time of the exercise further include: obtaining the total pressure of the seventh receiving time by the processing unit according to the left foot pressure value and the right foot pressure value of the seventh receiving time; The processing unit obtains the total pressure of the eighth receiving time according to the left foot pressure value and the right foot pressure value of the eighth receiving time; and When the processing unit determines that the difference between the total pressure of the seventh receiving time and the total pressure of the eighth receiving time is greater than the launch threshold, the seventh receiving time is set as the launching time. For example, in the exercise state evaluation method described in item 8 of the scope of patent application, the processing unit judges corresponding to the receiving time, and at least one of the pressure values, the center of gravity values, and the center of gravity track information. The steps of the start time, the start time, and the end time of the exercise further include: the processing unit sets the ninth receiving time when the other of the left foot pressure value and the right foot pressure value drops to the end threshold as the End Time.

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