WO2016056233A1 - Dispositif de mesure de mouvement, procédé de mesure de mouvement et programme de mesure de mouvement - Google Patents

Dispositif de mesure de mouvement, procédé de mesure de mouvement et programme de mesure de mouvement Download PDF

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Publication number
WO2016056233A1
WO2016056233A1 PCT/JP2015/005091 JP2015005091W WO2016056233A1 WO 2016056233 A1 WO2016056233 A1 WO 2016056233A1 JP 2015005091 W JP2015005091 W JP 2015005091W WO 2016056233 A1 WO2016056233 A1 WO 2016056233A1
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WIPO (PCT)
Prior art keywords
inertial sensor
unit
sensor
control signal
sampling rate
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PCT/JP2015/005091
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English (en)
Japanese (ja)
Inventor
平林　洋一
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セイコーエプソン株式会社
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Application filed by セイコーエプソン株式会社 filed Critical セイコーエプソン株式会社
Priority to US15/516,451 priority Critical patent/US20170291081A1/en
Priority to CN201580054770.7A priority patent/CN106794373A/zh
Publication of WO2016056233A1 publication Critical patent/WO2016056233A1/fr

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/46—Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0003—Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
    • A63B24/0006—Computerised comparison for qualitative assessment of motion sequences or the course of a movement
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/50—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/16—Caps; Ferrules
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/0002—Training appliances or apparatus for special sports for baseball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/0002—Training appliances or apparatus for special sports for baseball
    • A63B2069/0004—Training appliances or apparatus for special sports for baseball specially adapted for particular training aspects
    • A63B2069/0008—Training appliances or apparatus for special sports for baseball specially adapted for particular training aspects for batting
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/0658—Position or arrangement of display
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/18—Baseball, rounders or similar games
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/18—Baseball, rounders or similar games
    • A63B2102/182—Softball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/17—Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/30—Speed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/30—Speed
    • A63B2220/34—Angular speed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/40—Acceleration
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/40—Acceleration
    • A63B2220/44—Angular acceleration
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/62—Time or time measurement used for time reference, time stamp, master time or clock signal
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/803—Motion sensors
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry

Definitions

  • the present invention relates to a motion measurement device, a motion measurement method, a motion measurement program, and the like.
  • Patent Document 1 discloses a swing evaluation support device.
  • the swing evaluation support device includes a gyro sensor and an acceleration sensor attached to a golf club.
  • the gyro sensor has three orthogonal measurement axes and detects an angular velocity around each measurement axis.
  • the acceleration sensor has three orthogonal measurement axes and detects acceleration along each measurement axis.
  • the present invention it is possible to provide a motion measurement device, a motion measurement method, and a motion measurement program that can reduce power consumption as compared with the prior art.
  • an inertial sensor that measures exercise, an input unit that inputs an item identifier assigned to each user's exercise, and the inertia according to the item identifier input by the input unit
  • the present invention relates to a motion measurement apparatus including a host terminal including a control unit that generates a control signal for controlling a sampling rate of a sensor and outputs the control signal to the inertial sensor.
  • the item identifier specifies the analysis item desired by the user. Arithmetic processing is determined for each analysis item. Calculation processing is performed according to the swing, and the analysis item desired by the user can be presented to the user. At this time, the output of the required inertial sensor is different for each analysis item. The minimum required inertial sensor sampling rate is different for each analysis item. In this motion measurement apparatus, a sufficient sampling rate can be selected for each analysis item, and as a result, unnecessary measurements can be omitted as much as possible. Thus, power consumption during measurement can be reduced.
  • the inertial sensor may include a storage unit that stores the output of the inertial sensor and a communication unit that communicates the output of the inertial sensor to the outside.
  • a storage unit that stores the output of the inertial sensor
  • a communication unit that communicates the output of the inertial sensor to the outside.
  • the inertial sensor may transmit the output of the inertial sensor to the communication unit without going through the storage unit when the sampling rate is equal to or lower than the transmission rate of the communication unit.
  • the specific sampling rate is set and the information amount of the measurement value is less than or equal to the communication capacity of the communication unit, the measurement value can be output from the communication unit in real time without passing through the storage unit. Therefore, reading and writing of the storage unit can be omitted. Thus, power consumption during measurement is reduced.
  • the inertial sensor stores the output of the inertial sensor in the storage unit, and outputs the output of the inertial sensor from the storage unit to the communication unit. Can be sent.
  • the inertial sensor may include a plurality of sensors, and the control signal may be controlled by designating a specific sensor among the plurality of sensors.
  • the required inertial sensor output differs for each analysis item.
  • the minimum detection axis and physical quantity required for each analysis item are different. In this motion measurement device, the detection axis and physical quantity can be selected for each analysis item, and as a result, unnecessary measurement and output of measurement values can be avoided. Thus, power consumption during measurement can be reduced.
  • the control signal can stop the measurement by setting the sampling rate of the specified specific sensor to zero. If the measurement of the physical quantity is stopped by the sensor, the power consumption during measurement is reduced.
  • the control signal may instruct transmission of only the output of the specified specific sensor. Even if the physical quantity is measured by the sensor, if the transmission of the measurement value is stopped, the power consumption at the time of measurement is reduced.
  • a procedure for receiving an input of an item identifier assigned for each user action, and a sampling rate of an inertial sensor that detects the user action according to the input item identifier relates to a motion measurement method including a procedure for generating a control signal to be controlled and outputting the control signal to the inertial sensor.
  • the swing measurement device (motion measurement device) 11 includes a sensor unit 12 and a host terminal 13.
  • the sensor unit 12 is mounted on, for example, a baseball or softball bat 14.
  • the sensor unit 12 is attached to the grip end 14 a of the bat 14 with a mount member 15.
  • the sensor unit 12 may be embedded in the mount member 15.
  • the mount member 15 may be made of, for example, a stretchable material.
  • the host terminal 13 is composed of a smartphone 16, for example.
  • the smartphone 16 includes a display panel 17.
  • a touch screen panel 18 is overlaid on the surface of the display panel 17.
  • the user can confirm the evaluation result of the swing group according to the display on the display panel 17.
  • the user can input various instructions and conditions according to the operation of the touch screen panel 18.
  • a tablet PC terminal, a notebook PC terminal, or a desktop PC terminal can be used as the host terminal 13.
  • the sensor unit 12 is communicatively connected to the smartphone 16 by radio, for example.
  • radio for example, Bluetooth (registered trademark) can be used for wireless communication.
  • the detection signal of the sensor unit 12 is supplied to the smartphone 16.
  • the sensor unit 12 includes an inertial sensor 21.
  • the inertial sensor 21 incorporates acceleration sensors 22a, 22b, 22c and gyro sensors 23a, 23b, 23c.
  • the acceleration sensors 22a, 22b, and 22c can individually detect accelerations in three axial directions orthogonal to each other.
  • the gyro sensors 23a, 23b, and 23c can individually detect angular velocities around the three axes orthogonal to each other.
  • the inertial sensor 21 outputs a detection signal.
  • x-axis direction acceleration for example, x-axis direction acceleration, y-axis direction acceleration, z-axis direction acceleration, x-axis rotation angular velocity, y-axis rotation angular velocity, and z-axis rotation angular velocity are specified.
  • the sensor unit 12 has a data processing unit 24.
  • the data processing unit 24 is connected to the inertial sensor 21.
  • a detection signal is supplied from the inertial sensor 21 to the data processing unit 24 at a predetermined sampling rate.
  • the detection signal is processed by the data processing unit 24 and converted into a signal in a form suitable for communication. For example, an analog signal is converted into a digital signal.
  • the sensor unit 12 has a transmission / reception unit (communication unit) 25.
  • the transmission / reception unit 25 is connected to the data processing unit 24.
  • the transmission / reception unit 25 is supplied with a processed detection signal, that is, physical quantity data, from the data processing unit 24.
  • the transmission / reception unit 25 wirelessly outputs physical quantity data according to a determined communication protocol.
  • the sensor unit 12 has a memory (storage unit) 26.
  • the memory 26 is connected to the data processing unit 24. Physical quantity data is supplied from the data processing unit 24 to the memory 26. If the information amount of the physical quantity data per unit time is less than or equal to the communication capacity of the transmission / reception unit 25, the data processing unit 24 supplies the physical quantity data to the transmission / reception unit 25 in real time. On the other hand, when the physical quantity data per unit time exceeds the communication capacity of the transmission / reception unit 25, the data processing unit 24 can store the physical quantity data in the memory 26. Thus, the output of the inertia sensor 21 is held in the memory 26.
  • the sensor unit 12 has a sampling rate setting unit 27.
  • the sampling rate setting unit 27 is connected to the inertial sensor 21 and the transmission / reception unit 25.
  • a control signal is supplied from the transmission / reception unit 25 to the sampling rate setting unit 27.
  • the flag value of the sampling rate is specified in the control signal.
  • the sampling rate setting unit 27 writes, for example, the value of the lower 2 bits of the control register 0xAA according to the flag value.
  • the inertial sensor 21 recognizes a sampling rate of 250 Hz
  • “0x01” is written
  • the inertial sensor 21 recognizes a sampling rate of 1 kHz.
  • the value of the control register and the sampling rate are related on the inertial sensor 21 side.
  • the host terminal 13 has a processing unit 31.
  • the processing unit 31 is constituted by a CPU, for example.
  • a transmission / reception unit 32 is connected to the processing unit 31.
  • the transmission / reception unit 32 can exchange signals with the transmission / reception unit 25 of the sensor unit 12 wirelessly.
  • the processing unit 31 can process the output signal of the sensor unit 12.
  • a display panel 17 and a touch screen panel 18 are connected to the processing unit 31.
  • the processing unit 31 can output the processing result to the display panel 17 and can execute an operation determined according to the operation of the touch screen panel 18.
  • the processing unit 31 is connected to storage means such as a ROM (Read Only Memory) 33, a RAM (Random Access Memory) 34, and a nonvolatile memory 35.
  • the processing unit 31 uses a ROM 33, a RAM 34, and a nonvolatile memory 35 for signal processing.
  • the ROM 33 stores a swing measurement software program and related data.
  • the processing unit 31 executes a swing measurement software program to realize a swing measurement method.
  • the RAM 34 temporarily stores a swing measurement software program when performing the swing measurement method.
  • the nonvolatile memory 35 stores a relatively small amount of programs and data such as BIOS (basic input / output system).
  • the processing unit 31 includes a data acquisition unit 36, a control unit 37, and a swing evaluation unit 38.
  • the data acquisition unit 36 acquires physical quantity data of the sensor unit 12 received via the transmission / reception unit 32.
  • the data acquisition unit 36 stores the acquired physical quantity data, for example, in the RAM 34.
  • the RAM 34 stores physical quantity data in time series.
  • the control unit 37 calculates swing analysis information based on the physical quantity data acquired by the data acquisition unit 36.
  • the swing analysis information includes an analysis value of each item for each individual swing.
  • the items include a swing trajectory, the number of swings, swing speed, swing time, grip rotation radius, bat 14 angle, bat 14 rotation angle, and the like.
  • the control unit 37 obtains physical quantities such as x-axis direction acceleration, y-axis direction acceleration, z-axis direction acceleration, x-axis angular velocity, y-axis angular velocity, and z-axis angular velocity obtained at a sampling rate of 1 kHz. Is used. Based on these physical quantities, for example, the posture of the bat 14 is calculated every 1/1000 second.
  • the control unit 37 uses the x-axis direction acceleration and the y-axis direction acceleration obtained at a sampling rate of 250 Hz for counting the number of swings. In counting, the control unit 37 detects the start and end of swing of the bat 14. For example, the swing speed of 5% of the average swing speed is set as a threshold value, and a swing time and a “batting position” state are distinguished.
  • the swing speed specifies the head speed of the bat 14.
  • the swing time specifies the time elapsed from the end of the previous swing to the end of the current swing.
  • the grip rotation radius specifies the rotation radius of the track of the grip end 14a.
  • the angle of the bat 14 specifies the inclination angle of the bat 14 with respect to the horizontal plane.
  • the rotation angle of the bat 14 specifies the rotation angle of the bat 14 around the vertical axis. Any one of these items may be calculated, an item group including several items may be calculated, or all items may be calculated.
  • Such swing analysis information is specified based on the trajectory and posture of the bat 14 during the swing.
  • a signal for specifying the analysis value is output from the control unit 37 to, for example, the RAM 34.
  • the swing analysis information may be stored in the RAM 34 for each swing.
  • the control unit 37 is notified of the item identifier from the touch screen panel 18. Upon notification, the control unit 37 receives a signal for specifying an item identifier.
  • the item identifier specifies items such as “swing trajectory”, “number of swings”, and “swing speed”.
  • a calculation process using physical quantity data from the sensor unit 12 is determined for each item identifier. For example, a unique item identifier is assigned to the calculation process of “swing trajectory”, a unique item identifier is assigned to the calculation process of “number of swings”, and a unique item identifier is assigned to the calculation process of “swing speed”. Item identifiers are assigned.
  • the control unit 37 generates a control signal that specifies the sampling rate of the inertial sensor 21 according to the type of the item identifier. The control unit 37 can output the control signal toward the inertial sensor 21.
  • the swing evaluation unit 38 evaluates the swing analysis information for each item. In the evaluation, the swing evaluation unit 38 specifies a target value for each item of the swing analysis information. The swing evaluation unit 38 acquires a signal for specifying the target value of the item.
  • the target value may be stored in the RAM 34 in advance. Here, the target value may be set by the user's designation based on the operation of the touch screen panel 18.
  • the swing evaluation unit 38 compares the analysis value with the target value for each individual swing. For comparison, the swing evaluation unit 38 receives a signal for specifying an analysis value from the RAM 34. In this way, it is evaluated whether or not the target value has been reached for each individual swing. The swing evaluation unit 38 specifies the ratio of the swing that has reached the target value in the swing group. Target achievement is evaluated according to the percentage.
  • step S1 when the swing measurement software program is activated, the user is prompted to select an item in step S1. For example, as shown in FIG. 4, a “trajectory analysis mode” and a “swing mode” are displayed on the screen of the display panel 17. In addition, when the “swing mode” is selected, items that should be indicators of achievement may be further listed on the screen of the display panel 17. For example, one or more items may be selected from the swing speed, swing time, grip rotation radius, bat 14 angle, and bat 14 rotation angle.
  • the touch screen panel 18 notifies the control unit 37 of the item identifier of the item selected according to the user's operation.
  • the user sets a target value for each item as necessary.
  • the head speed may be set to a swing speed such as km / h.
  • the target value of the head speed provides an indication of the strength of the hit ball.
  • the swing time may be set in seconds.
  • the target value of swing time provides an indication of the pace of swing.
  • the grip rotation radius the distance between the grip and the center of rotation may be set such as cm.
  • the target value of the grip turning radius provides an indication of whether it is compact or large.
  • the angle of the bat 14 may be set such as ... degrees.
  • the target value of the angle of the bat 14 provides an indication of “the head is standing” and “the head is sleeping”.
  • the rotation angle of the bat 14 may be set to an angle such as degrees.
  • the rotation angle of the bat 14 provides an indication of full swing or half swing.
  • the user operates, for example, the touch screen panel 18.
  • a blank for prompting input is displayed on the display panel 17.
  • Each target value may be stored in the RAM 28, for example.
  • step S2 the control unit 37 sorts item identifiers. If the item identifier is classified into the first category, the control unit 37 designates a high sampling rate in step S3. In step S4, the control unit 37 generates a control signal having a sampling rate of 1 kHz according to the designation of the high sampling rate. When the item identifier is classified into the second class, the control unit 37 designates a low sampling rate in step S5. In step S4, the control unit 37 generates a control signal having a sampling rate of 250 Hz in accordance with the designation of the low sampling rate. In the control signal, a flag “1” or “0” may be set according to the sampling rate. The generated control signal is transmitted from the transmission / reception unit 32.
  • the item “trajectory analysis mode” belongs to the first class, and the item “swing mode” and other items belong to the second class.
  • the transmission / reception unit 25 receives a control signal.
  • the control signal is transferred from the transmission / reception unit 25 to the sampling rate setting unit 27.
  • the sampling rate setting unit 27 writes the control register of the inertial sensor 21 in accordance with the flags “1” and “0” specified by the control signal. For example, when “trajectory analysis mode” is selected in step S 1, a flag “1” is set in the control signal, and “0x01” is written in the control register of the inertial sensor 21.
  • a sampling rate of 1 kHz is set.
  • step S1 When “swing mode” is selected in step S1, a flag “0” is set in the control signal, and “0x02” is lively mixed in the control register of the inertial sensor 21.
  • a sampling rate of 250 Hz is set. When the sampling rate is set, the inertial sensor 21 starts measurement.
  • a detection signal is output from the inertial sensor 21 during the swinging.
  • the “hold” is specified by the detection signal of the inertial sensor 21. In most cases, the “hold” is grasped when the grip is stationary.
  • a change appears in the detection signal of the inertial sensor 21. For example, when the z-axis direction is aligned with the axial center of the bat 14, the change in acceleration is specified by the x-axis direction acceleration and the y-axis direction acceleration in the detection signal.
  • the data processing unit 22 processes the detection signal.
  • the processed detection signal is sent from the transmission / reception unit 25 to the host terminal 13 as physical quantity data.
  • step S6 the host terminal 13 receives the physical quantity data by the transmission / reception unit 32.
  • the data acquisition unit 36 acquires physical quantity data of the sensor unit 12.
  • the physical quantity data is stored in the RAM 28 in time series.
  • the control unit 37 performs arithmetic processing according to the selected item in step S7. For example, if “trajectory analysis mode” is selected, a swing trajectory is calculated for each individual swing based on physical quantity data obtained at a sampling rate of 1 kHz. If “swing mode” is selected, the swing start and end of swing are calculated based on the x-axis direction acceleration and the y-axis direction acceleration obtained at the sampling rate of 250 Hz. The number of swings is counted according to the start and end of swinging. Similarly, if “swing speed” is selected, the head speed is calculated based on physical quantity data obtained at a sampling rate of 250 Hz. The trajectory, the number of times, and the swing speed are stored in the RAM 34, for example.
  • step S8 it is determined in step S8 whether or not the swinging has ended. If completed, the measurement of the inertial sensor 21 ends. If not finished, the measurement of the inertial sensor 21 is continued. Again, the “stand” is specified in the detection signal of the inertial sensor 21. The subsequent processing is repeated until the swing is completed. Even in the middle of swinging, the measurement of the inertial sensor 21 can be completed through the user's operation of the touch screen panel 18.
  • the swing evaluation unit 38 evaluates the swing.
  • the evaluation may be started in response to, for example, the user operating the touch screen panel 18.
  • the swing evaluation unit 38 acquires a target value and an analysis value for each individual swing from the RAM 28.
  • the swing evaluation unit 38 compares the analysis value with the target value. For example, if the “trajectory analysis mode” is selected, the swing evaluation unit 38 images the ideal trajectory based on the target value and the user trajectory based on the analysis value in a predetermined display format. If “swing mode” is selected, the swing evaluation unit 38 images the number of swings in a determined display format.
  • the target value and the analysis value are compared with each other for each swing, and the swing evaluation unit 38 may count the swing of the analysis value having a value better than the target value.
  • the swing evaluation unit 38 may count the swing of the analysis value having a value better than the target value.
  • the proportion of the swing corresponding to the hit ball exceeding the target strength is evaluated.
  • the swing time is selected as the item, it is evaluated how much rest is put in the middle of swinging.
  • a grip turning radius is selected for an item, it is evaluated how often a compact swing has been achieved.
  • the angle of the bat 14 is selected as an item, it is evaluated how much the head has been lowered (sleeped).
  • the full swing ratio is evaluated.
  • the entire swing group is evaluated at the rate of the swing that has reached the target value.
  • necessary physical quantity data is different for each item specified by the item identifier.
  • the sampling rate of physical quantity data required at the minimum differs for each item.
  • a sufficient sampling rate can be selected for each item, and as a result, unnecessary measurement is avoided as much as possible. Thus, power consumption during measurement is reduced.
  • the inertial sensor 21 sets a low sampling rate, the information amount of the physical quantity data is less than or equal to the communication capacity of the transmission / reception unit 25. Therefore, the physical quantity data is output from the transmission / reception unit 25 in real time without passing through the memory 26. Reading and writing of the memory 26 is omitted. Thus, power consumption during measurement is reduced.
  • the information amount of the physical quantity data exceeds the communication capacity of the transmission / reception unit 25. In this case, the physical quantity data is once stored in the memory 26. When the swing ends, the physical quantity data is output from the transmission / reception unit 25. The physical quantity data is surely sent to the host terminal 13.
  • the required physical quantity data is different for each item.
  • the minimum required detection axis and physical quantity are different.
  • the physical quantity measurement itself is stopped by the acceleration sensors 22c and the gyro sensors 23a, 23b, and 23c other than the acceleration sensors 22a and 22b for the x-axis direction acceleration and the y-axis direction acceleration, the power consumption during measurement is reduced. Is done.

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  • Physical Education & Sports Medicine (AREA)
  • User Interface Of Digital Computer (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un dispositif de mesure de mouvement qui comprend un capteur inertiel et un terminal hôte. Le capteur inertiel mesure un mouvement. Le terminal hôte comprend une unité d'entrée et une unité de commande. L'unité d'entrée est utilisée pour entrer un identifiant d'article attribué sur une base de mouvement par utilisateur. L'unité de commande génère un signal de commande pour commander le taux d'échantillonnage du capteur inertiel selon l'identifiant d'article entré par l'unité d'entrée et fournit un signal de commande au capteur inertiel.
PCT/JP2015/005091 2014-10-08 2015-10-06 Dispositif de mesure de mouvement, procédé de mesure de mouvement et programme de mesure de mouvement WO2016056233A1 (fr)

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US15/516,451 US20170291081A1 (en) 2014-10-08 2015-10-06 Motion measurement apparatus, motion measurement method, and motion measurement program
CN201580054770.7A CN106794373A (zh) 2014-10-08 2015-10-06 运动测量装置、运动测量方法以及运动测量程序

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JP2014207373A JP6350194B2 (ja) 2014-10-08 2014-10-08 運動計測装置、運動計測方法および運動計測プログラム

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GB2577939A (en) * 2018-10-12 2020-04-15 Sports & Well Being Analytics Ltd System and method

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JPH0818622A (ja) * 1994-06-30 1996-01-19 Toshiba Corp 情報通信端末装置
JPH1075428A (ja) * 1996-08-29 1998-03-17 Fuji Photo Film Co Ltd 画像信号の送信装置および受信装置
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JP6350194B2 (ja) 2018-07-04

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