JP6028941B2 - Swing analysis device, swing analysis system, program, and swing analysis method - Google Patents

Description

  The present invention relates to a swing analysis device, a program, and a swing analysis method.

  There is a need for a device for analyzing the motion of a person or an object in various fields. For example, it is possible to improve the competitiveness by analyzing a swing path of a golf club and clarifying improvement points from the analysis result.

  Currently, as a practical motion analysis device, the object to be measured is continuously photographed with an infrared camera or the like, and the motion is analyzed by calculating the movement trajectory of the mark using the photographed continuous image. Things are common.

JP 2001-296799 A

  However, such a motion analysis apparatus requires an infrared camera for taking an image, so that the apparatus becomes large and difficult to handle. For example, when taking an image of tennis practice from multiple angles, it is necessary to move the position of the infrared camera or change the player's orientation according to the angle to be taken.

  On the other hand, in recent years, a device has been proposed in which a small motion sensor is attached to the object to be measured and the motion of the object to be measured is analyzed from the output data of the sensor, and an infrared camera is not required, so handling is easy. However, it was difficult to perform a swing analysis that matched the user's needs.

  It is important for players such as golf to maintain the best swing, but it is actually difficult, and when they break down from the best, they want to know quantitatively what the current state is like I believe. For example, the best swing may be compared with a first-class professional swing or an ideal swing based on golf theory. However, the actual best swing varies depending on individuals and is not unique.

  The present invention has been made in view of the above problems, and according to some aspects of the present invention, it is easy to handle and obtains swing analysis information based on an individual's best swing. A swing analysis device, a program, and a swing analysis method can be provided.

  (1) The present invention provides a swing feature information calculation that calculates swing feature information of the swing based on a sensor unit including a motion sensor that detects a swing of the exercise equipment and output data of the motion sensor corresponding to the swing. A swing selection unit that selects the swing feature information, a reference swing feature information calculation unit that calculates reference swing feature information to be used as a reference based on the selected swing feature information, and stores the reference swing feature information in a storage unit, Is a swing analysis system.

  The sensor unit may include at least one of an acceleration sensor that detects at least one-axis acceleration (or three axes) and an angular velocity sensor (gyro sensor) that detects at least one-axis angular velocity (or three axes). Alternatively, a sensor that functions as a posture sensor may be included.

  The exercise apparatus may be a golf club, for example, and the motion sensor may be attached to the golf club to detect the swing of the golf club.

  Since the output data of the motion sensor can determine the characteristics before and after the swing based on the transition of the output data and the like, and can divide the output data by the swing unit, the output data of each swing is based on the output data of the swing unit. Swing feature information may be calculated.

  The swing feature information may be given as data for each of a plurality of items that are used to determine whether the swing is good or bad and the state.

  The swing sorting unit may sort based on external input (for example, user input). For example, the output data of the swing for which the user inputs “Good data (selection target)” from the operation unit may be selected as “Good data”.

  Further, it may be selected based on the case where the content of the output data of the motion sensor satisfies a predetermined condition. For example, the impact state may be determined from the output data of the motion sensor, and the swing output data in which the impact state satisfies a predetermined condition may be selected as “Good data”.

  The reference swing feature information may be an average value of the swing feature information of the selected swings, a maximum value, or another value.

  The reference swing feature information calculation unit may update the reference swing feature information in real time every time the swing feature information is newly selected.

  The swing analysis system may be realized as an integrated device in which the sensor unit is configured integrally with the main body (swing feature information calculation unit, swing selection unit, or reference swing feature information calculation unit). In addition, it may be configured to be attached to an exercise device or the like independently of the main body and transmit detection data to the main body wirelessly or the like.

  ADVANTAGE OF THE INVENTION According to this invention, the swing analysis apparatus and method which are easy to handle and can obtain the analysis information of the swing based on the best swing of the individual can be provided.

  (2) The swing analysis apparatus may include a marking input unit that inputs a marking in association with the swing, and the swing selection unit may select the swing feature information based on the marking input.

  The presence / absence of marking input, etc., is held as a marking input flag in association with the output data of each swing, and the swing selection unit sorts the swing feature information based on the marking input flag held in association with the output data of each swing. May be.

  (3) The swing analysis apparatus includes an impact state determination unit that determines an impact state in the swing based on the swing feature information, and the swing selection unit includes a determination result of the impact state in the swing. Based on this, the swing feature information may be selected.

  The impact state determination unit detects the impact timing in the swing of the exercise equipment, calculates a change amount of the posture angle of the exercise equipment within a predetermined time from the impact timing, and based on the calculation result, The state may be determined. The impact is detected by detecting a maximum value of angular velocity or acceleration with respect to an axis on which the exercise equipment swings based on output data of the motion sensor, and the exercise equipment swings as the impact timing. The timing at which the magnitude of the angular velocity or acceleration with respect to the axis to be maximized may be detected. In general, it is considered that the angular velocity with respect to the axis on which the exercise equipment swings is maximized immediately before the impact, and therefore the impact timing can be detected. In the determination of the impact state, the determination criterion of the impact state may be variably set according to the maximum value of the angular velocity with respect to the axis on which the exercise equipment swings. In general, if the swing speed of exercise equipment is different, even if the ball hits the same position, it is considered that the amount of change in posture angle due to the generated rotational motion is different, so an appropriate criterion according to the swing speed is used. By doing so, the state of impact can be determined without error.

  (4) The swing analysis apparatus may include a comparison unit that generates comparison information by comparing the swing feature information and the reference swing feature information, and an output unit that outputs the comparison information.

  It is possible to easily compare the player's own best swing with the current swing. For example, if the comparison data is output to an external viewer, the player can quickly be notified of the current swing.

  (5) This swing analysis apparatus may include a data type input unit for inputting the data type of the swing.

  When the content of the swing feature information to be calculated differs for each data type, the swing feature information calculation unit may calculate swing feature information corresponding to the data type of each swing.

  The comparison unit may compare the swing feature information of each swing with the reference swing feature information having the same data type as each swing.

  (6) In this swing analysis apparatus, the swing feature information calculation unit may calculate data relating to a swing trajectory of the swing as the swing feature information.

  The data related to the swing trajectory may be, for example, coordinate values or functions indicating the trajectory shape or trajectory of the exercise equipment. For example, the initial state of the exercise apparatus may be obtained from the output value of the acceleration sensor, and the subsequent movement may be obtained from the output value of the angular velocity sensor (gyro sensor).

  The swing feature information calculation unit may calculate a ground inclination angle value of the swing locus of the swing based on output data of the motion sensor as the feature information.

  (7) In this swing analysis apparatus, the sensor unit may include an acceleration sensor and an angular velocity sensor. The angular velocity sensor may be a gyro sensor.

(8) The present invention provides a swing feature information calculation unit that calculates swing feature information of the swing, based on output data of a motion sensor that detects a swing of the exercise equipment, and a swing selection unit that selects the swing feature information. The present invention relates to a program for causing a computer to function as a reference swing feature information calculation unit that calculates reference swing feature information to be used as a reference based on the selected swing feature information and holds it in a storage unit.
ADVANTAGE OF THE INVENTION According to this invention, the program used for the swing analyzer which is easy to handle and from which the analysis information of the swing based on the best swing of the individual can be obtained can be provided.

  (9) The present invention provides a swing feature information calculation step for calculating swing feature information of the swing based on output data of a motion sensor that detects a swing of the exercise equipment, and a swing selection step for selecting the swing feature information. Further, the present invention relates to a swing analysis method including a reference swing feature information calculation step that calculates reference swing feature information used as a reference based on the selected swing feature information and holds it in a storage unit.

  According to the present invention, it is possible to provide a swing analysis method that is easy to handle and obtains swing analysis information based on an individual's best swing.

The figure which shows the structure of the swing analyzer of this embodiment. A specific example of the swing analysis device of the present embodiment. An example of the host terminal which is a main body. An example of motion sensor output data. An example of swing information. An example of swing characteristic information. The flowchart which shows the flow of a process in the case of classifying Good data by the marking input from an input part. The flowchart which shows the flow of a process in performing impact determination with respect to the output data of a motion sensor, and selecting Good data. The example which determines the impact state in the swing of a golf club.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. Also, not all of the configurations described below are essential constituent requirements of the present invention.

1. Configuration of Swing Analysis Device FIG. 1 is a diagram illustrating a configuration of a swing analysis device according to the present embodiment. The swing analysis apparatus 1 according to the present embodiment includes a sensor unit 10 including one or a plurality of motion sensors and a host terminal 20. The sensor unit 10 and the host terminal 20 may be wirelessly connected or wired.

  The sensor unit 10 is attached to an exercise device that is an object of swing analysis. In the present embodiment, the sensor unit 10 includes one or a plurality of motion sensors 100, a data processing unit 110, and a communication unit 120.

  The motion sensor 100 may include an angular velocity sensor (gyro sensor). The angular velocity sensor detects an angular velocity around the detection axis, and outputs a signal (angular velocity data) corresponding to the detected angular velocity. In the swing analysis apparatus 1 according to the present embodiment, the host terminal 20 detects, for example, angular velocities in three axes (x-axis, y-axis, and z-axis) directions as the motion sensor 100 in order to calculate the posture of the exercise equipment. Three angular velocity sensors may be included.

The motion sensor 100 may include an acceleration sensor. The acceleration sensor detects acceleration in the detection axis direction and outputs a signal (acceleration data) corresponding to the detected magnitude of acceleration. In the swing analysis apparatus 1 of the present embodiment, the motion sensor 100 detects, for example, accelerations in three axis directions (x axis, y axis, z axis) in order for the host terminal 20 to calculate the posture of the exercise equipment. Three acceleration sensors may be included.

  The data processing unit 110 performs processing of synchronizing the output data of the motion sensor 100 and outputting the data to the communication unit 120 as a packet combined with time information and the like. Further, the data processing unit 110 may perform bias correction and temperature correction processing of the motion sensor 100. Note that functions of bias correction and temperature correction may be incorporated in the motion sensor 100.

  The communication unit 120 performs processing for transmitting the packet data received from the data processing unit 110 to the host terminal 20.

  The host terminal 20 includes a processing unit (CPU) 200, a communication unit 210, an operation unit 220, a ROM 230, a RAM 240, a nonvolatile memory 250, and a display unit 260. The host terminal 20 may be realized as a dedicated device, or may be realized by a personal computer (PC) or a portable device such as a portable game machine, a mobile phone, or a smartphone.

  The communication unit 210 performs processing of receiving data transmitted from the sensor unit 10 and sending the data to the processing unit 200.

  The operation unit 220 performs a process of acquiring operation data from the user and sending it to the processing unit 200. The operation unit 220 is, for example, a touch panel display, buttons, keys, a microphone, and the like.

  The operation unit 220 may function as a marking input unit that performs marking input in association with the swing. Further, the operation unit 220 may function as a data type input unit that receives an input regarding the data type of the swing.

  The ROM 230 stores programs for the processing unit 200 to perform various calculation processes and control processes, various programs and data for realizing application functions, and the like.

  The RAM 240 is used as a work area of the processing unit 200, and temporarily stores programs and data read from the ROM 230, data input from the operation unit 220, calculation results executed by the processing unit 200 according to various programs, and the like. It is a storage unit.

  The non-volatile memory 250 is a recording unit that records data that needs to be stored for a long time among the data generated by the processing of the processing unit 200. For example, the swing feature information of the selected swing and the reference swing feature information may be recorded.

  The display unit 260 displays the processing result of the processing unit 200 as characters, graphs, or other images. The display unit 260 is, for example, a CRT, LCD, touch panel display, HMD (head mounted display), or the like. Note that the functions of the operation unit 220 and the display unit 260 may be realized by a single touch panel display.

  The display unit 260 may function as an output unit that outputs comparison information.

The processing unit 200 performs the sensor unit 10 according to a program stored in the ROM 240.
Various calculation processes for data received from the communication unit 210 via the communication unit 210 and various control processes (such as display control for the display unit 260) are performed.

  In the present embodiment, the processing unit 200 functions as a data acquisition unit 201, a swing feature information calculation unit 202, a swing selection unit 203, a reference swing feature information calculation unit 204, an impact state determination unit 205, and a comparison unit 206 described below. To do. Note that the processing unit 200 of the present embodiment may have a configuration in which some of these functions are omitted.

  The data acquisition unit 201 performs processing for acquiring output data (angular velocity data) of the sensor unit 10 received via the communication unit 210. The acquired data is stored in the RAM 240, for example.

  A swing feature information calculation unit 202 calculates swing feature information of the swing based on output data of the motion sensor corresponding to the swing, and a swing selection unit 203 calculates the swing feature information based on a predetermined condition. The reference swing feature information calculation unit 204 calculates reference swing feature information, which is swing feature information used as a reference, based on the selected swing feature information of the swing, and stores it in the storage unit.

  The swing selection unit 203 may select the swing feature information based on the marking input made in association with the swing.

  The impact state determination unit 205 determines an impact state in the swing based on the output data of the motion sensor, and the swing selection unit 203 determines the swing feature based on the determination result of the impact state in the swing. Information may be sorted out.

  The comparison unit 206 may compare the swing feature information of the swing with the reference swing feature information, generate comparison information, and output the comparison information to the display unit 260.

  The reference swing feature information calculation unit 204 calculates the reference swing feature information for each data type of the swing based on the swing feature information of the selected swing, and stores it in the storage unit (RAM 240 or nonvolatile memory 250). You may let them.

The swing feature information calculation unit 202 may calculate data related to the swing trajectory of the swing based on the output data of the motion sensor as the feature information, or based on the output data of the motion sensor as the feature information. Thus, data relating to angular velocity and speed change at the time of impact of the swing may be calculated.

  Note that all or part of the data acquisition unit 201, swing feature information calculation unit 202, swing selection unit 203, reference swing feature information calculation unit 204, impact state determination unit 205, and comparison unit 206 may be in the sensor unit 10. Good.

  The host terminal 20 may include a sound output unit (not shown), and may function as an output unit that outputs the comparison information as, for example, a voice message, sound effect, music, or the like.

2. Specific Example of Swing Analysis System A case where a golf club swing is analyzed will be described as an example.

  FIG. 2 shows a specific example of the swing analysis apparatus of the present embodiment.

  As shown in the figure, the sensor unit 10 of the swing analysis apparatus is attached to a golf club (an example of an exercise device) 6 independently of the host terminal 20 as a main body, and detects data (output data of a motion sensor). It transmits to the host terminal 20 which is the main body by radio or the like.

  FIG. 3 is an example of the host terminal 20 that is a main body.

  The host terminal 20 has an operation unit such as buttons 222 and 224 and a display unit 260 in a casing (external), and includes a CPU, a ROM, a RAM, a nonvolatile memory, and the like (not shown).

  The button 222 may be a button for inputting “good” marking, for example. After the user performs a swing at the golf club, if the user thinks that the swing that has just been performed is a good swing, pressing the button 222 will cause the output data related to the swing that has just been performed to be marked “good”. Good (for example, the “good” flag associated with the output data is turned ON). If you do not think that the swing is good, if you do not input anything, the output data related to the swing that was not input nothing will not be marked "good" (for example, "good" associated with the output data "" Flag or the like is turned OFF), the output data can be selected in units of swings depending on the presence or absence of marking (for example, "good" flag or the like is ON / OFF).

  The button 224 may be, for example, a button for inputting a club type (an example of a data type). When the user starts swing practice with a golf club or changes the type of club to be used, the user may press the button 224 to specify the type of club. For example, when the club type is club 1 (for example, driver), club 2 (for example, n-th iron), and club 3 (for example, putter), pressing button 224 causes club 1, club 2, club 3,. The club type may be switched. When the button 224 is pressed, the currently selected club type may be displayed on the display unit 260.

  The display unit 260 may display comparison information between the swing feature information of the current swing and the swing feature information of the best mode (an example of reference swing feature information) after the player swings.

  The comparison information may be comparison result data or the like, or a determination result (for example, a rank assigned according to whether the swing is good or bad) based on the comparison result, or the swing was analyzed based on the comparison result. The content of analysis may be sufficient, and the message to the user created based on the comparison result (for example, a message such as “Sad”, “Do your best” or “Great”) may be used.

  Note that comparison and comparison information may be output for all swing output data, or for swing output data that has not been marked.

  The host terminal 20 may be provided with a sound output unit such as a speaker, and the comparison result may be output as a sound, a voice message, music, or the like.

3. Motion Sensor Output Data and Swing Information FIG. 4 is a diagram illustrating an example of motion sensor output data.

  Here, a case where the motion sensor includes a triaxial angular velocity sensor (x, y, z) and a triaxial acceleration sensor will be described as an example.

  The output data of the motion sensor is the analog signal output from the triaxial angular velocity sensor (x, y, z) and the triaxial acceleration sensor converted into a digital signal, and a predetermined time interval (t1, t2,... tn,...) detected values 412, 414, 416 of triaxial angular velocity sensors (x, y, z) and detected values 412, 414, 416 of triaxial acceleration sensors (x, y, z) Become.

  Based on the transition of the output data 412, 414, 416, 422, 424, 426, etc., the characteristics before and after the swing are judged, and the swing unit (including one swing and the non-swing period before and after the swing, It is possible to divide the output data in units of period until the start of the swing). For example, if it is determined that the section K1 (time t1 to time tn-1), the section K2 (time tn to time tn + m-1),... Indicates the characteristics of the output data for one swing, the sections K1, K2,. .. Is identified as output data for one swing, and swing characteristic information of each swing is calculated.

  If there is a “good marking” input from the operation unit (eg, button 224 in FIG. 3), the marking input may be associated with the output data of each swing based on the timing of each swing and the timing of the marking input.

  For example, if there are “good marking” inputs m1 and m2 from the operation unit (for example, the button 224 in FIG. 3) during the periods K1 and K3, the output data of the swing in the sections K1 and K2 is marked as “good” data. The

  In addition, the end of each swing may be determined from the output data, and a marking input period for performing marking input for each swing at the end of each swing may be provided. When the marking input is performed during the marking input period, the output data of the swing corresponding to the marking input period is marked as “good” data.

  FIG. 5 shows an example of the swing information stored in association with the output data of the motion sensor.

  Even if the output data of the motion sensor is divided into swing units, a swing number 430 is given for each swing for convenience, and swing information such as data type 440, time information 450, good flag 460, etc. is stored in association with the swing number 430. Good.

  The time information 450 is time information (such as a start time and an end time of each section) of a section corresponding to each swing. Based on the time information 450, the swing part can be specified from the output data of the motion sensor. Further, the good flag 460 may be stored in association with the swing number 430. Based on the time information 450 of each swing, the output data of the corresponding motion sensor may be taken out and the swing characteristic information may be calculated. Further, based on the good flag information 460 of each swing, it may be determined whether to select each swing.

4). Swing feature information and best mode swing feature information FIG. 6 shows an example of swing feature information.

  The swing feature information includes swing trajectory information 470 and head speed information 480, is calculated based on the swing corresponding portion of the output data of the motion sensor, and is stored in association with the swing number 430. The data type 440 may also be stored in association with the swing number 430 so that the swing feature information can be associated with the data type.

  The swing trajectory information 470 may be, for example, coordinate values or functions indicating the trajectory shape or trajectory of the exercise equipment. For example, the initial state of the exercise apparatus may be obtained from the output value of the acceleration sensor, and the subsequent movement may be obtained from the output value of the angular velocity sensor (gyro sensor).

  Further, the swing trajectory information 470 may include an inclination angle value of the swing trajectory obtained based on the output data of the motion sensor.

  The head speed information 480 may be an angular velocity at the time of impact. The angular velocity at the time of impact may be the angular velocity in the swing plane, or may be obtained by correcting the actual output of the angular velocity sensor according to the posture of the golf club or the like.

  The best mode swing feature information (an example of reference swing feature information) is calculated based on the swing feature information of the swing stored as good data. For example, as shown in FIG. 6, when there are a plurality of pieces of swing feature information of swing locus information 470 and head speed information 480, the best mode information (best mode swing locus information, best mode head speed) is obtained for each piece of swing feature information. Information).

  As the calculation of the best mode swing feature information, an average value of the swing feature information stored as good data may be calculated, and the obtained average value may be used as the best mode swing feature information. The most frequent value obtained by calculating the most frequent value of the swing feature information stored as good data may be used as the best mode swing feature information.

  The best mode swing feature information may be obtained for each data type. For example, the best mode swing trajectory information of the data type “1” may be calculated based on the swing trajectory information S1, S2,... Of the swing “000001”, “000002”,. .

  The best mode swing feature information may be updated in real time. Each time the user performs a swing and a good swing is issued, the number of samples of the population that is the basis of the best mode swing feature information calculation increases. Therefore, the best mode swing feature information may be updated each time the number of samples increases.

5. Impact Determination Processing FIG. 9 is an explanatory diagram of an example of determining the impact state in the swing of the golf club. For example, FIG. 9A shows the center axis (the chain line) of the golf club 6 head in the swing of the golf club 6. A view of the golf ball 7 hitting the upper position is shown. On the other hand, FIG. 9B shows a view in which the golf ball 7 hits a position shifted leftward from the center axis (indicated by the alternate long and short dash line) of the head of the golf club 6 in the swing of the golf club 6. . When the golf ball 7 hits the position on the central axis of the head of the golf club 6 (just met), the rotation around the central axis hardly occurs, but the golf ball 7 hits the position shifted from the central axis. In this case (when the meet fails), a rotation around the central axis (an arrow in FIG. 9B) occurs immediately after the impact. Therefore, it is determined whether or not the golf ball 7 has hit the central axis from the amount of change in the attitude angle of the determination axis with an arbitrary axis orthogonal to the central axis of the head of the golf club 6 immediately after impact as the determination axis. it can. The impact timing can be determined from the angular velocity around the swing axis.

Therefore, in order to capture the angular velocity around the swing axis and the angular velocity around the determination axis, for example, a sensor including three angular velocity sensors that can detect angular velocities in three orthogonal directions (x-axis, y-axis, and z-axis), respectively. The portion 10 is attached to the head of the golf club 6 such that, for example, the x-axis is perpendicular to the ball striking surface and the z-axis is coincident with the central axis of the golf club 6 head. Thereby, the impact timing can be detected from the angular velocity data around the y-axis (swing axis), and the impact state is determined from the amount of change in the attitude angle of the x-axis or y-axis (determination axis) immediately after the impact. be able to. In addition, the sensor part 10 can be attached not only to the head of the golf club 6 but at an arbitrary position that does not hinder the swing.

  Thus, by calculating the maximum amount of change in the posture angle of the determination axis in a predetermined time immediately after the impact, it is possible to capture the rotational motion of the exercise equipment caused by the impact. Therefore, the impact state can be objectively determined by appropriately selecting the determination axis according to the exercise equipment.

6). Processing of this Embodiment FIG. 7 is a flowchart showing the flow of processing when Good data is selected by marking input from the input unit.

  When the player turns on the system, the following processing is performed.

  First, input of used club type information, which is the type of golf club to be used, is received (step S10). If there is no particular input, the subsequent processing may be performed using the default value or the previously specified value.

  Based on the output data of the motion sensor, it is determined whether or not the swing is separated (step S20). For example, the output data of the motion sensor as shown in FIG. 4 is divided into a section K1, a section K2,..., And the timing at which the section is switched is determined as a swing section.

  If it is a swing break (step S30), the following processing is performed. If it is not a break, the process returns to step S20.

  Based on the output data of the motion sensor, the swing feature information is calculated for each swing (step S40). For example, feature information such as swing trajectory information and head speed information is calculated.

  Next, it is determined whether or not there is a Good marking input related to the swing. When there is a Good marking input from the operation unit, it is recorded as swing data (good flag) of the swing designated as “good”, and the presence or absence of the Good marking input related to the swing is determined by the swing data of the swing. It may be determined by (good flag).

  If there is a Good marking input related to the swing (Step S50), the swing characteristic information marked Good is stored as Good data in the used club type information in the storage unit (Step S60).

  The swing feature information of Good data (including this Good data) having the same club type information as the current Good data is read from the storage unit, and based on the read swing feature information, the best mode swing feature information (reference swing feature) An example of information) is calculated (step S70).

  If there is no Good marking input from the operation unit, the swing characteristic information of the swing that is not marked Good is recorded as the latest data (step S80).

  Then, the best mode swing feature information is compared with the swing feature information recorded as the latest data, and the comparison result is output (step S90).

  As described above, according to the swing analysis apparatus of the present embodiment, the best mode swing feature information is calculated based on the good swing good data by selecting the good swing according to the user's good marking input, and this best mode swing feature. Based on the information, a swing analysis is performed. Therefore, it is possible to provide a swing analysis device that can obtain in real time swing analysis information based on each user's individual best swing.

  FIG. 8 is a flowchart showing the flow of processing when impact determination is performed on the output data of the motion sensor and Good data is selected.

  First, input of used club type information, which is the type of golf club to be used, is accepted (step S110). If there is no particular input, the subsequent processing may be performed using the default value or the previously specified value.

  Based on the output data of the motion sensor, it is determined whether or not the swing is separated (step S120). For example, the output data of the motion sensor as shown in FIG. 4 is divided into a section K1, a section K2,..., And the timing at which the section is switched is determined as a swing section.

  If it is a swing break (step S130), the following processing is performed. If it is not a break, the process returns to step S120.

  Based on the output data of the motion sensor, the swing feature information is calculated for each swing (step S140). For example, feature information such as swing trajectory information and head speed information is calculated.

  Next, based on the swing feature information, an impact determination process is performed for each swing (step S150).

  Next, based on the impact determination result, it is determined whether or not the current swing is a good swing (step S160). When the impact state is determined from the output data of the motion sensor and the impact state satisfies a predetermined condition, it is recorded as swing data (good flag) of the swing designated as “good”. Whether or not the swing is a good swing may be determined by swing data (good flag) of the swing.

  When it is determined that the swing is a good swing (step S170), the swing feature information determined as a good swing is stored as good data in the used club type information in the storage unit (step S180).

  The swing feature information of Good data (including this Good data) having the same club type information as the current Good data is read from the storage unit, and based on the read swing feature information, the best mode swing feature information (reference swing feature) An example of information) is calculated (step S190).

  If it is not determined as a good swing, the swing characteristic information of the swing that is not determined as a good swing is recorded as the latest data (step S200).

  Then, the best mode swing feature information is compared with the swing feature information recorded as the latest data, and the comparison result is output (step S210).

As described above, according to the swing analysis device of the present embodiment, the good swing is selected according to the impact determination result of the output data of the motion sensor, and the best mode swing feature information is calculated based on the good swing good data. Based on the best mode swing feature information, the swing is analyzed. Therefore, it is possible to provide a swing analysis apparatus that can obtain real-time swing analysis information based on the best swing of each user's individual.

  In the above, the method of the present embodiment has been described by taking the case where the exercise apparatus is a golf club as an example.For other exercise apparatuses, if the swing axis and the determination axis are appropriately defined according to the exercise apparatus, The method of this embodiment can be applied.

  The present invention is not limited to the present embodiment, and various modifications can be made within the scope of the gist of the present invention.

  The present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object. Further, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

DESCRIPTION OF SYMBOLS 1 Swing analysis apparatus, 6 Golf club, 7 Golf ball, 10 Sensor part, 20
Host terminal, 100 motion sensor, 110 data processing unit, 120 communication unit, 200 processing unit (CPU), 201 data acquisition unit, 202 swing feature information calculation unit, 203 swing selection unit, 204 reference swing feature information calculation unit, 205 impact State determination unit, 206 comparison unit, 210 communication unit, 220 operation unit, 230 ROM, 240
RAM, 250 nonvolatile memory, 260 display

Claims (17)

Based on the output data of the motion sensor, a swing feature information calculation unit that calculates swing feature information of the swing,
An impact state determination unit that determines the state of impact in the swing based on the swing feature information;
Based on a determination result of the state of the impact in the swing, a swing sorting unit that sorts the swing feature information;
A swing analysis apparatus comprising: a reference swing feature information calculation unit that calculates reference swing feature information used as a reference based on the plurality of selected swing feature information. In claim 1 ,
A comparison unit that compares the swing feature information with the reference swing feature information to generate comparison information;
And an output unit that outputs the comparison information. In claim 1 or 2 ,
A swing analysis apparatus including a data type input unit for inputting the data type of the swing. In any one of Claims 1 thru | or 3 ,
The swing feature information calculation unit includes:
A swing analysis device that calculates data related to a swing trajectory of the swing as the swing feature information. A swing analysis device according to any one of claims 1 to 4 ,
And a motion sensor that is mounted on at least one of the exercise equipment and the user and detects the swing. Based on the output data of the motion sensor, the procedure for calculating the swing feature information of the swing,
A procedure for determining an impact state in the swing based on the swing feature information, and selecting the swing feature information based on a determination result of the impact state in the swing;
A program for causing a computer to execute a procedure for calculating reference swing feature information used as a reference based on a plurality of selected swing feature information.   In claim 6,
  A procedure for generating comparison information by comparing the swing feature information and the reference swing feature information;
  A program for causing a computer to execute a procedure for outputting the comparison information.   In claim 6 or 7,
  A program for causing a computer to execute a procedure for inputting the data type of the swing.   In any one of Claims 6 thru | or 8,
  The procedure for calculating the swing feature information is as follows:
  The program which calculates the data regarding the swing locus | trajectory of the said swing as said swing characteristic information. A swing feature information calculating step for calculating swing feature information of the swing based on the output data of the motion sensor;
A swing selection step of determining an impact state in the swing based on the swing feature information, and selecting the swing feature information based on a determination result of the impact state in the swing;
A swing analysis method comprising: a reference swing feature information calculation step for calculating reference swing feature information used as a reference based on the plurality of selected swing feature information.   In claim 10,
  A comparison step of comparing the swing feature information with the reference swing feature information to generate comparison information;
  An output step of outputting the comparison information.   In claim 10 or 11,
  A swing analysis method including a data type input step of inputting a data type of the swing.   In any one of claims 10 to 12,
  The swing feature information calculation step includes:
  A swing analysis method for calculating data relating to a swing trajectory of the swing as the swing feature information.   Based on the output data of the motion sensor, the swing feature information of the swing is calculated,
  Based on the swing feature information, determine the state of impact in the swing,
  Based on the determination result of the impact state in the swing, the swing feature information is selected,
  A swing analysis device that calculates reference swing feature information used as a reference based on the plurality of selected swing feature information.   In claim 14,
  Comparing the swing feature information with the reference swing feature information to generate comparison information;
  A swing analysis device that outputs the comparison information.   In claim 14 or 15,
  A swing analysis apparatus for inputting a data type of the swing.   In any one of claims 14 to 16,
  A swing analysis device that calculates data related to a swing trajectory of the swing as the swing feature information.

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