JP2019058330A - Motion correcting apparatus and motion correcting method - Google Patents

Abstract

To provide a motion correcting apparatus efficiently correcting motion of a user.SOLUTION: A motion correcting apparatus 100 includes: a setup unit 11 for setting up target motion; a detector 20 for detecting actual motion of a user corresponding to the target motion; a device for applying stimulus to the user's body or brain from the outside to correct motion of the user; and an output unit 13 that outputs a control signal to the device according to an arrival degree of the actual motion with respect to the target motion, so as to approximate the actual motion detected by the detector 20 to the target motion. The target motion includes final target motion, and first intermediate motion and second intermediate motion set up in a stepwise manner until reaching the final target motion.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a motion correction device and a motion correction method for correcting a user's motion.

  As this type of device, conventionally, reference operation data stored in advance and actual operation data of the user are compared, data for operation correction is generated based on the comparison result, and is output to the operation guide unit. An apparatus is known (see, for example, Patent Document 1). In the device described in Patent Document 1, when there is a difference between the reference operation data and the actual operation data, vibration or sound is output to the device worn by the user, and the operation is incorrect for the user. Inform.

JP, 2010-246912, A

  However, it is difficult to efficiently correct the user's operation if the apparatus is configured to notify the user that the operation is incorrect due to vibration or sound as in the apparatus described in Patent Document 1 above.

  A motion correction device according to one aspect of the present invention includes a setting unit that sets a target motion, a detection unit that detects a user's actual motion corresponding to the target motion, and a user who externally provides a stimulus to the user's body or brain. A motion correction unit that corrects the motion of the target motion; and an output unit that outputs a control signal to the motion correction unit according to the degree of achievement of the actual motion with respect to the target motion such that the actual motion detected by the detection unit approaches the target motion. Prepare. The target motion includes a final target motion and one or more intermediate target motions set stepwise until reaching the final target motion.

  A motion correction method according to another aspect of the present invention sets a target motion, detects a user's actual motion corresponding to the target motion, and causes the detected actual motion to approach the target motion. According to the degree of achievement, the user's body or brain is externally stimulated to correct the user's action. The target motion includes a final target motion and one or more intermediate target motions set stepwise until reaching the final target motion.

  According to the present invention, the motion of the user can be corrected easily and efficiently.

The figure which shows an example of a user's operation | movement to which the operation | movement correction apparatus which concerns on embodiment of this invention is applied. 1 is a block diagram showing a schematic configuration of a motion correction device according to an embodiment of the present invention. The figure which shows the relationship of the target attainment level and target motion which are used with the movement correction apparatus of FIG. 5 is a flowchart showing an example of processing executed by the calculation unit of FIG. 2; The figure for demonstrating an example of operation | movement of the movement correction apparatus which concerns on embodiment of this invention. The figure which shows the modification of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The motion correction device according to an embodiment of the present invention is configured to output an electrical signal to a device worn by the user such that the motion of the user approaches the target motion, and correct the motion of the user. The target motion includes various motions such as various sports and dances on land and in the water, motions in various leisure and recreation, and standard motions in daily life. In the following, the swing motion of golf is used as an example of the target motion.

  For example, when a golf beginner starts golfing, practice is necessary to obtain an ideal swing motion, but it is ideal if only watching the motion picture of a sample swing etc. It is difficult to efficiently obtain the swing motion of the That is, for example, when the difference between the current actual motion and the ideal motion (target motion) is large, it is difficult to closely match the actual motion to the target motion. Therefore, in the present embodiment, the motion correction device is configured as follows so that the actual motion easily and efficiently approaches the target motion.

  FIG. 1 is a view showing an example of the operation of the user to which the operation correction device according to the present embodiment is applied. As shown in FIG. 1, the device 1 for motion correction is attached to a user's body (for example, the upper body, an arm, etc.) via an attachment such as a belt. The device 1 incorporates a plurality of electrode pads 1a (only one is shown) corresponding to, for example, the position of a muscle that mainly affects swing motion. Therefore, by applying a current to the electrode pad 1a, electrical stimulation is given to the muscle at a predetermined site at a predetermined timing via the electrode pad 1a. As a result, the muscle of the predetermined part can contract and exercise independently of the user's consciousness, and the swing motion can be corrected.

  Note that an actuator such as an electric motor is incorporated in the appliance 1 and a control signal is output to the actuator to control the operation of the actuator, thereby applying an external force of a predetermined magnitude to a predetermined portion of the user's body at a predetermined timing. This may correct the swing motion.

  Instead of or in addition to the device 1 worn on the body, a device 2 of, for example, a cap shape is attached to the head of the user. The device 2 incorporates one or more electrodes 2a corresponding to, for example, the position of the brain that instructs the movement of muscles. Therefore, an electrical stimulation is given to the brain through the electrode 2a by applying a current to the electrode. As a result, the user can be prompted to perform a predetermined motion, and the swing motion can be corrected.

  FIG. 2 is a block diagram showing the main configuration of the motion correction device 100 according to the embodiment of the present invention. As shown in FIG. 2, the motion correction device 100 is configured centering on the controller 10, and in the controller 10, the detector 20, the input device 30, the display device 40, and the electrode pad 1 a are respectively wired or wireless Electrically connected. When the user wears the device 2, the controller 10 is connected to the electrode 2 a. When the instrument 1 incorporates an actuator (electric motor), the controller 10 is connected to the actuator.

  The detector 20 includes an imaging device such as a CCD, for example, and includes one or more cameras that capture the swing motion of the user. Based on the image signal from the camera, it is possible to detect the swing motion of the user, that is, the trajectory, timing, speed and the like of the swing. In the detector 20, in place of the camera or together with the camera, various sensors, for example, an acceleration sensor acting on a predetermined part of the user's body, an acceleration sensor for detecting a force, a force sensor, displacement of the user's predetermined part It is also possible to use a displacement sensor, an angle sensor or the like which detects a change. Some or all of these sensors can be built into the instruments 1 and 2. In particular, the instrument 2 can incorporate a sensor for detecting brain activity such as an electroencephalogram, a magnetoencephalographic wave, or a state of cerebral blood flow. The signal from detector 20 is sent to controller 10.

  The input device 30 includes various switches operated by the user, a keyboard, a touch panel, and the like, and can input various commands and information to the controller 10 through the input device 30. A microphone is also included in the input device 30, and various commands and information can be voice input via the microphone. The input device 30 has a selection unit 31 as a functional configuration. The selection unit 31 selects a single operation from among a plurality of operations stored in the controller 10 (storage unit 15) according to the selection operation of the user.

  The display device 40 includes a monitor that reports various information to the user according to an instruction from the controller 10. The display device 40 displays, for example, an actual swing motion (actual motion) of a user, a swing motion of a target (target motion), a degree of difference between the actual motion and the target motion (attainment of the target motion), etc. Can. Information for guiding the user's operation of the input device 30, for example, a candidate for an operation selected by the selection unit 31 can be displayed on the display device 40. Although illustration is omitted, a speaker may be connected to the controller 10, and information may be output by voice through the speaker.

  The controller 10 is configured to include a computer having an arithmetic unit 10A such as a CPU, a storage unit 10B such as a ROM and a RAM, and other peripheral circuits. Arithmetic unit 10A has setting unit 11, calculation unit 12, and output unit 13 as a functional configuration. Note that part of the functions of the controller 10 may be shared by a plurality of controllers that can communicate with each other.

  The storage unit 10B stores a plurality of target actions in advance. The target motions include swing motions of a plurality of professional golfers such as a swing motion of a professional golfer A, a swing motion of a professional golfer B, and the like. It is also possible to include in the target motion a plurality of swing motions recommended according to the gender, age, golf skill level and the like of the user. It is also possible to include in the target motion a swing motion according to the purpose such as an increase in flight distance and correction of hooks and slices. The controller 10 can acquire a target operation from an external server or the like and store the target operation in the storage unit 10B.

  The setting unit 11 sets the target operation selected by the user via the selection unit 31 as a final target operation. For example, the swing motion of the professional golfer A, the swing motion of the professional golfer B, etc. are set as the final target motion. Furthermore, the setting unit 11 sets a stepwise operation up to the final target operation as an intermediate target operation. The intermediate target operation is an operation with lower skill than the final target operation, and the setting unit 11 sets a plurality of intermediate target operations in a single or stepwise manner.

  FIG. 3 is a diagram showing an example of the target operation set by the setting unit 11. In FIG. 3, two stages of intermediate target motion (first intermediate target motion and second intermediate target motion) up to the final target motion and the final target motion are set. When the learning level of the final target motion is 100%, the learning level of the first intermediate target motion is α1 (for example, 30%), and the learning level of the second intermediate target motion is α2 (for example, 60%). Before setting the final target motion as the target motion, the setting unit 11 sets a predetermined learning level α1, α2 according to the difference between the final target motion and the actual motion of the user, that is, the achievement degree of the actual motion with respect to the final target motion. Set the intermediate target action of.

  The calculating unit 12 of FIG. 2 calculates the degree of difference between the actual operation of the user detected by the detector 20 and the target operation set by the setting unit 11. For example, the degree of difference in the trajectory of swing motion, speed, timing, etc. is calculated. Specifically, the calculation unit 12 calculates the achievement degree β (%) of the actual motion with respect to the target motion with the target motion as 100%.

  The output unit 13 outputs, to the electrode pad 1a, a control signal corresponding to the reach degree β calculated by the calculation unit 12. That is, the control signal for operation correction for bringing the actual operation of the user closer to the target operation, for example, a larger electric signal is output to the electrode pad 1a as the reaching degree β is smaller. The output unit 13 also outputs a control signal to the display device 40, and causes the display device 40 to display the degree of achievement β or the like of the target operation.

  FIG. 4 is a flow chart showing an example of the process executed by the operation unit 10A according to the program stored in advance in the storage unit 10B, particularly an example of the process related to control of the electrode pad 1a. The process shown in this flowchart is started, for example, when the user operates the start switch or the like of the input device 30 after selecting the final target operation via the selection unit 31.

  First, in step S1, the initial actual operation of the user detected by the detector 20 is read. Next, at step S2, the achievement degree β (initial achievement degree) of the actual movement with respect to the initial actual movement and the final target movement selected by the selection unit 31 is calculated, and the initial target movement is set according to the initial achievement degree. For example, the target value of the attainment degree with respect to the target motion, that is, the target attainment degree βa (for example, 90%) is set in advance, and the target behavior is set in accordance with the magnitude of the attainment degree β In the example of FIG. 3, the first intermediate target motion is equal to or greater than α1 × βa and the second intermediate target motion is equal to or greater than α2 × βa when the initial achievement degree β is less than α1 × βa. When the final target motion is set as an initial target motion, respectively. The value of the target achievement degree βa may not be constant but may be changed for each target operation.

  In step S2, the target motion is updated until the target motion reaches the final target motion. For example, when the first intermediate target motion is set as the initial target motion in the process of the first step S2, the second intermediate target motion is set as the target motion in the process of the next step S2, and the next intermediate step S2 is performed. In the process, set the final target action.

  In step S3, the actual operation of the user detected by the detector 20 is read. Next, in step S4, the degree of difference between the detected swing motion and the target motion, that is, the achievement degree β of the actual motion with respect to the target motion (intermediate target motion or final target motion) is calculated. Next, in step S5, it is determined whether the calculated attainment degree β is equal to or more than the target attainment degree βa. If a negative decision is made in step S5, the process proceeds to step S6.

  In step S6, motion correction processing is performed to correct the swing motion of the user. Specifically, at the time of the swing operation of the user, a control signal according to the operation reach β is output at a predetermined timing to the electrode pad 1a at a predetermined portion. For example, as the degree of reaching the movement is smaller, a larger electric signal is output to the electrode pad 1a to promote muscle movement such that the actual movement approaches the target movement. When the motion correction process is completed, the process returns to step S3 to repeat the above-described process.

  On the other hand, if affirmed in step S5, the process proceeds to step S7, and it is determined whether or not the target motion set in step S2 is the final target motion, that is, the achievement degree β of the user's actual action is a ratio of the target achievement degree βa or more , It is determined whether or not the master level (100%) of the final target motion has been reached. If a negative decision is made in step S7, the process returns to step S2 to set a new target motion. For example, when the immediately preceding target motion is the first intermediate target motion of FIG. 3, the second intermediate target motion is taken, and when the immediately preceding target motion is the second intermediate target motion of FIG. Set as operation. If the result at Step S7 is affirmative, the process ends.

  The main operation of the motion correction device according to the present embodiment will be described more specifically. FIG. 5 is a diagram showing an example of a time change of the user's proficiency level. As shown in FIG. 5, when the initial level (skill level) of the user's swing motion detected by the detector 20 is α0 at the initial time point t0 (point P0), the first intermediate target motion is selected as the target motion. It is set (step S2). In this state, operation correction processing is performed such that the actual operation approaches the first intermediate target operation according to the degree of attainment of the user's actual operation to the first intermediate target operation (step S6).

  When the user's learning level of the swing movement increases with the passage of time, and the achievement degree β of the actual movement with respect to the first intermediate target movement (learning degree α1) becomes equal to or more than the target achievement degree βa (eg 90%) at time t1 (point P1), that is, when the user's learning level approaches α1 by a certain amount or more, a new target operation (second intermediate target operation) is set (step S5 → step S7 → step S2). In this state, operation correction processing is performed such that the actual operation approaches the second intermediate target operation according to the degree of attainment of the user's actual operation to the second intermediate target operation (step S6).

  Furthermore, as time passes, at time t2, when the achievement degree β of the actual movement with respect to the second intermediate target movement (skill level α2) becomes equal to or more than the target achievement degree βa (point P2), a new target movement (final target) Operation) is set. In this state, motion correction processing is performed such that the actual motion approaches the final target motion according to the degree of achievement of the user's actual motion with respect to the final target motion. At time t3, when the achievement degree β of the actual motion of the user becomes equal to or more than the predetermined value βa and the learning degree of the swing motion increases to almost 100% (point P3), the motion correction processing is ended.

  By thus increasing the level of the target motion gradually, the deviation between the target motion and the actual motion can always be limited to a predetermined range or less. Therefore, it is possible to suppress the burden on the user when performing the operation correction process by operating the electrode pad 1a, and it is possible to easily and efficiently improve the swing operation of the user.

According to the present embodiment, the following effects can be achieved.
(1) The motion correction device 100 corrects the user's motion by providing the setting unit 11 for setting the target motion of the golf swing, the detector 20 for detecting the swing motion of the user, and the user's body Device 1 (electrode pad 1a), and an output unit for outputting a control signal to the electrode pad 1a in accordance with the attainment of the actual operation to the target operation so that the actual operation detected by the detector 20 approaches the target Prepare (Figure 2). The target motion includes a final target motion and an intermediate target motion (first intermediate target motion, second intermediate target motion) which are set stepwise until reaching the final target motion (FIG. 3). By thus setting the intermediate target motion in stages until the final target motion and gradually increasing the level of the target motion, the user's learning level of the swing motion can be easily and efficiently improved. Can.

(2) First, the output unit 13 outputs a control signal to the electrode pad 1a according to the achievement degree β of the user's actual operation with respect to the intermediate target operation so that the user's operation detected by the detector 20 approaches the intermediate target operation. Do. Next, when the degree of attainment of the actual operation with respect to the intermediate target operation reaches a predetermined value βa or more, the output unit 13 reaches the actual operation with respect to the final target operation such that the actual operation detected by the detector 20 approaches the final target operation. A control signal is output to the electrode pad 1a according to the degree β. By thus gradually increasing the level of the target motion, the user's swing motion can be efficiently and gradually leveled up to the final target motion.

(3) The motion correction device 100 further includes a selection unit 31 which selects one of a plurality of final target motions according to a command from the user (FIG. 2). The output unit 13 outputs a control signal to the electrode pad 1 a so that the actual operation detected by the detector 20 approaches the final target operation selected by the selection unit 31. As a result, the swing motion can be corrected in accordance with the final target motion according to the user's preference among the plurality of final target motions, and the user's satisfaction is enhanced. For example, by including the swing motion of the professional golfer A, the swing motion of the professional golfer B, and the like as selection candidates, the user can easily obtain the swing motion of the favorite professional golfer.

(4) The electrode pad 1a is incorporated in the device 1 worn on the user's body, and the output unit 13 outputs a control signal according to the achievement degree β of the user's actual operation with respect to the target operation. By thus providing electrical stimulation to the user's body, it is possible to easily correct the swing motion of the user.

(5) The motion correction method sets a target motion (step S2), detects an actual motion of the user corresponding to the target motion (step S3), and detects the target motion so that the detected actual motion approaches the target motion. According to the achievement degree of the actual motion, the user's body is externally stimulated to correct the motion of the user (step S6). The target motion includes a final target motion and an intermediate target motion set stepwise until reaching the final target motion. This makes it possible to easily and efficiently increase the user's learning level of the swing motion.

  The above embodiments can be modified in various forms. Hereinafter, modified examples will be described. FIG. 6 is a view showing a modification of FIG. In FIG. 6, the device 3 for correcting the walking motion is attached to the user's body (e.g. lower body etc.). This device 1 incorporates a plurality of electrode pads 3a (only one is shown) corresponding to, for example, the position of a muscle that mainly affects walking motion, and at a predetermined timing to a muscle at a predetermined site via the electrode pad 3a. Electrical stimulation is given. Thereby, the walking motion of the user can be corrected. In addition, you may make it correct | amend walk operation | movement using the instrument 2 with which the user's head was mounted | worn.

  The motion corrected by the motion correction device is not limited to the one described above. Thus, the device attached to the user's body or brain is not limited to the one described above. That is, as long as the user's body or brain is externally stimulated to correct the user's action, the configuration of the action correction unit such as the instruments 1 to 3 may be any. Although the target motion of the golf swing is stored in the storage unit 10B in the above embodiment, target motions corresponding to other motions may be stored in the storage unit 10B. In the above embodiment, the swing motion of the user is detected by the detector 20. However, the detection unit may be appropriately changed according to the target motion. The configuration of the output unit 13 is limited to that described above if the control signal is output to the operation correction unit according to the degree of attainment of the actual operation to the target operation so that the actual operation detected by the detection unit approaches the target operation. Absent.

  In the above embodiment (FIG. 3), the final target motion and the first intermediate target motion and the second intermediate target motion are set by the setting unit 11. However, they are set stepwise until the final target motion is reached. In this case, a single intermediate target operation may be set, or three or more intermediate target operations may be set. If the user's initial operation level is close to the final target operation level, the intermediate target operation may be omitted and the final target operation may be suddenly set.

  In the above embodiment, the swing motion of the golf is corrected by the motion correction device 100. However, the motion correction device of the present invention performs various operations such as sports other than golf and motions other than sports (for example, rehabilitation). The same applies to correction.

  The above description is merely an example, and the present invention is not limited to the above-described embodiment and modifications as long as the features of the present invention are not impaired. It is also possible to arbitrarily combine one or more of the above-described embodiment and the modifications, and it is also possible to combine the modifications.

Reference Signs List 1 instrument, 1a electrode pad, 11 setting unit, 13 output unit, 20 detector, 30 input device, 31 selection unit, 100 operation correction device

A motion correction device according to one aspect of the present invention includes a setting unit that sets a target motion, a detection unit that detects a user's actual motion corresponding to the target motion, and a user who externally provides a stimulus to the user's body or brain. A motion correction unit that corrects the motion of the target motion; and an output unit that outputs a control signal to the motion correction unit according to the degree of achievement of the actual motion with respect to the target motion such that the actual motion detected by the detection unit approaches the target motion. Prepare. The target motion includes a final target motion and one or more intermediate target motions set stepwise until reaching the final target motion. The setting unit sets the intermediate target motion according to the degree of difference between the final target motion and the user's actual motion, and updates the target motion according to the degree of difference between the final target motion and the user's actual motion.

In the motion correction method according to another aspect of the present invention, the setting unit sets the target motion, the detection unit detects an actual motion of the user corresponding to the target motion, and the actual motion detected by the motion correction unit is the target motion And providing the user's body or brain with an external stimulus to correct the user's action according to the degree of achievement of the actual action with respect to the target action. The target motion set by the setting unit includes a final target motion and one or more intermediate target motions set stepwise until reaching the final target motion. The setting unit sets the intermediate target motion according to the degree of difference between the final target motion and the user's actual motion, and updates the target motion according to the degree of difference between the final target motion and the user's actual motion.

Claims (5)

A setting unit for setting a target operation;
A detection unit that detects an actual operation of the user corresponding to the target operation;
A motion correction unit that externally stimulates the user's body or brain to correct the user's motion;
And an output unit that outputs a control signal to the operation correction unit according to the degree of attainment of the actual operation with respect to the target operation such that the actual operation detected by the detection unit approaches the target operation.
The motion correction device according to claim 1, wherein the target motion includes a final target motion and one or more intermediate target motions set stepwise until reaching the final target motion. In the motion correction device according to claim 1,
The output unit outputs a control signal to the operation correction unit according to the degree of achievement of the actual operation with respect to the intermediate target operation so that the actual operation detected by the detection unit approaches the intermediate target operation. When the degree of attainment of the actual motion with respect to the motion becomes equal to or more than a predetermined value, the motion correction portion is responsive to the degree of arrival of the actual motion with respect to the final target motion so that the actual motion detected by the detection unit approaches the final target motion. A motion correction device characterized by outputting a control signal. In the motion correction device according to claim 2,
And a selection unit for selecting one of the plurality of final target actions according to a command from the user,
The output correction unit outputs a control signal to the operation correction unit such that the actual operation detected by the detection unit approaches the final target operation selected by the selection unit. The motion correction device according to any one of claims 1 to 3.
The motion correction unit is a device mounted on a user's body and having an electrode or an actuator, and the output unit outputs, to the electrode or the actuator, a control signal according to the achievement degree of the actual motion with respect to the target motion. A motion correction device characterized in that. Set the target action,
Detecting an actual motion of the user corresponding to the target motion;
A motion correction method including externally providing a stimulus to the user's body or brain to correct the user's motion according to the degree of achievement of the target motion such that the detected actual motion approaches the target motion. And
The motion correction method according to claim 1, wherein the target motion includes a final target motion and one or more intermediate target motions set stepwise until reaching the final target motion.

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