JP3090782U - Motion analysis device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an apparatus for analyzing movement during a game, particularly movement of a center of gravity and movement of a body axis, with a simple structure and at low cost. A signal output from two biaxial acceleration sensors (3, 3) in a sensor unit (1) is stored in a storage device (4). The stored information is transmitted from the information transmitting unit 8 to the information receiving unit 10 in the analysis device 9 by wireless communication or the like. The analysis device 9 analyzes the received information with the database 11 and records the information. Then, the analysis result display means 12 displays the analysis result of the database 11 in an animation method, a graph display, an operation such as a change in sound, etc., in an easy-to-view manner.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a motion analysis device, which is mainly used to analyze a motion of a sports player during a game, particularly a motion of a center of gravity and a motion of a body axis, and to correct the motion.

[0002]

[Prior art]

 Sports, in any event, can produce the best results when ideally performed. However, the movement during the competition, especially the movement of the center of gravity and the movement of the axis of the body, is difficult for the coach and others watching as well as the person to understand.

[0003]

[Problems to be solved by the invention]

 Although various motion analysis devices have been proposed in the past from such a viewpoint, all of the conventional devices are complicated and have a large number of parts, and therefore have to be very expensive.

The present invention has been made in view of the above points, and an apparatus for analyzing movement of a sports player during a game, particularly movement of a center of gravity and movement of a body axis, has a simple structure and is inexpensive. It will not be provided.

[0005]

[Means for Solving the Problems]

 Thus, the gist of the present invention is to provide an acceleration sensor for detecting acceleration on two axes orthogonal to each other, a storage device for storing signals output by the acceleration sensor corresponding to each axis, A central processing unit that receives a signal from the acceleration sensor and stores the information in the storage device, a sensor unit including an information transmission unit that transmits information stored in the storage device to an analysis device described later, and information in the sensor unit. An information receiving unit for receiving the information transmitted from the transmitting unit, a database for analyzing the operation based on the received information and recording the operation, and an analysis result of the database such as animation expression, graph display, sound change, etc. And an analysis device provided with an analysis result display means for displaying the motion in an expression method that is easy to visually confirm.

Further, in the above configuration, the sensor section may include a connection terminal for an external sensor such as an altimeter and a light receiving sensor.

In the above configuration, two acceleration sensors may be used as one set as the acceleration sensor.

In the above configuration, information may be transmitted from the information transmitting unit in the sensor unit to the information receiving unit in the analyzer by wireless communication.

In the above configuration, the sensor unit may be connected to the analysis device so that the information transmission unit in the sensor unit directly transmits information to the information reception unit in the analysis device in a wired manner.

[0010]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of the configuration of the motion analysis apparatus according to the present invention, FIG. 2 is an explanatory view of the arrangement of two biaxial acceleration sensors, FIG. 3 is an operational explanatory view of the two biaxial acceleration sensors, and FIGS. FIGS. 10 to 12 are explanatory diagrams of examples of combinations of orientations according to the characteristics of the game and the fixed positions of the two biaxial acceleration sensors, FIGS. 10 to 12 are process flowcharts of the central processing unit in the sensor unit, and FIGS. FIG. 9 is an explanatory diagram of a usage method illustrated as an example of a case of an athlete in a ski jumping competition.

The present invention includes the following sensor unit and analysis device. In the figure, reference numeral 1 denotes a sensor unit. The sensor unit 1 includes a set of two acceleration sensors 3 and 3 incorporated in a housing 2 for detecting accelerations on two axes orthogonal to each other. And a storage device 4 for storing signals output in response to the signals from the acceleration sensors 3 and 3 and storing information in the storage device 4 and an external sensor 5 such as an altimeter or a light receiving sensor. It comprises a central processing unit (CPU) 7 for receiving signals from the connection terminal 6 and an information transmission unit 8 for transmitting information stored in the storage device 4 to an analysis device described later. Further, in the present embodiment, information is sent from the information sending unit 8 in the sensor unit 1 to the analysis device described later by wireless communication.

Reference numeral 9 denotes an analyzer, which comprises a personal computer, a small portable terminal, or the like that uses dedicated scientific software based on the characteristics of sports and exercise. The analyzing device 9 includes an information receiving unit 10 for receiving information transmitted from the information transmitting unit 8 in the sensor unit 1, and a database 11 for analyzing an operation based on the received information and recording the same. And an analysis result display means 12 for displaying the analysis result of the database 11 in an animation expression, a graph display, and an expression method which makes it easy to visually confirm operations such as sound changes.

The two acceleration sensors 3 in the sensor unit 1 are arranged at intervals of several centimeters as shown in FIG. 2, and as shown in FIG. The swing is detected from the difference in the swing width.

The two acceleration sensors 3, 3 are arranged so that their orientations are adjusted so that the movement of the center of gravity of the body and the movement of the body axis during the competition in accordance with the characteristics of the competition and the mounting position. This can be sensed, and FIGS. 4 to 9 show examples of combinations of the directions.

FIG. 4 is a diagram in which the upper and lower acceleration sensors 3 and 3 in the figure are oriented in the same direction, and both X-axis and Y-axis accelerations are detected.

FIG. 5 shows the upper and lower acceleration sensors 3 and 3 in the figure, and the upper acceleration sensor detects the X-axis and Y-axis acceleration in the same direction as in FIG. The acceleration sensor is tilted at right angles to the acceleration sensor on the upper side to detect accelerations in the X-axis and the Z-axis.

FIG. 6 shows that the upper and lower acceleration sensors 3 and 3 in the figure are all oriented in the same direction as the lower acceleration sensor in FIG. 5, and both detect the X-axis and Z-axis acceleration. It is something to do.

FIG. 7 shows the upper and lower acceleration sensors 3 and 3 in the figure, and the upper acceleration sensor detects the X-axis and Y-axis accelerations in the same direction as in FIG. The sensor has an angle shifted by 90 degrees in the horizontal direction with respect to the upper acceleration sensor, and detects the accelerations in the Y axis and the Z axis.

In FIG. 8, the upper and lower acceleration sensors 3 and 3 in the figure have the same orientation as the lower acceleration sensor in FIG. 7, and both detect the Y-axis and Z-axis acceleration. Things.

FIG. 9 shows the upper and lower acceleration sensors 3 and 3 in the drawing, and the upper acceleration sensor detects the X-axis and Z-axis acceleration in the same direction as the lower acceleration sensor in FIG. On the other hand, the lower acceleration sensor detects the Y-axis and Z-axis acceleration in the same direction as the lower acceleration sensor in FIG.

Further, the processing operation of the central processing unit (CPU) 7 of the sensor unit 1 in the present embodiment proceeds as shown in the flowcharts of FIGS.

Next, a method of using the present invention will be described. The examples shown in FIGS. 13 to 17 are for athletes in a ski jumping competition. First, as shown in FIG. 13, athlete A fixes sensor part 1 to the abdomen before the competition. Next, as shown in FIG. 14, the competitor A turns on the switch of the sensor unit 1 immediately before the start of the competition. Thus, recording of operation data is started. During the flight as shown in FIG. 15, the record of the acceleration change by the acceleration sensor 3 is stored in the storage device 4 as data. When the competition is over, as shown in FIG. 16, the competitor A switches off the sensor unit 1 and removes it from the body. Thereafter, as shown in FIG. 17, the sensor unit 1 is connected to an analysis device 9 such as a small portable terminal containing analysis software, and the data analysis result is displayed and verified on the spot. In the present embodiment, the sensor unit 1 is fixed to the abdomen of the athlete. However, the fixed position of the sensor unit 1 is a part such as a knee, a waist, a head, etc., which is adapted to the motion characteristics.

In the case of the ski jumping competition shown in the present example, the contents to be analyzed include upper and lower left and right movements of the upper body in the approach posture, and upward and forward thrusts at the level crossing. And the magnitude of the buoyancy in the air, etc., depending on the specific operation, and the external sensor 5 receives light at the connection terminal 6 of the external sensor provided in the sensor unit 1. By connecting a sensor and using a signal from the irradiator at the take-off position, it is possible to accurately ascertain the relationship between the take-off timing and the operation in conjunction with the take-off timing. This makes it possible to accurately and easily grasp the comparison of buoyancy in the air.

For example, in the case of running (long distance) or cross-country skiing, the analysis contents include the number of steps per unit time (pitch), up, down, left and right movement of the body, and forward direction for each step. Depending on the more specific operation, an altimeter is connected as an external sensor 5 to the connection terminal 6 of the external sensor provided in the sensor unit 1 and the altitude data is periodically taken in, so that long-distance data can be obtained. This makes it possible to grasp changes in pitch and form according to the course conditions, such as when climbing or descending, on the entire course with undulations.

In the case of short distance, medium distance, and speed skating on land, the analysis includes the number of steps per unit time (pitch), the vertical movement of the body, the left and right movement, and the forward direction of each step. Propulsion force, upward and forward propulsion force at the level crossing, etc. Depending on the specific operation, the walking as the walking is performed based on the change in the acceleration of two axes in the vertical (gravity) direction and the forward (forward) direction. By detecting one step or one skate slide as the number of steps, the number of steps and pitch can be counted.

Also, in the case of golf or baseball, the contents to be analyzed include upper and lower left and right movements of the upper body during a swing, twisting of the upper body during a swing, and so on. In the case of a swing motion at a fixed position such as a swing of a golf club or a swing of a baseball bat, a video is taken simultaneously with the measurement of the acceleration of the swing motion, and the video image and the measured change in the acceleration of the upper body. By superimposing and displaying the animated form on the computer screen, it is possible to grasp the characteristics of the form more specifically.

In the case of a car or motorcycle race, the contents to be analyzed include shift changes, brakes, accelerator work, lateral G / slip at cornering, and the like. A light receiving sensor is connected as an external sensor 5 to a connection terminal 6 of the external sensor provided in the sensor section 1, and signals from the irradiator at several points in the circuit are used to determine the timing of the brake before the curve and the accelerator work. It is possible to accurately grasp the timing and the like.

[0028]

[Effect of the invention]

 The present invention is configured and operated as described above. Since the two-axis acceleration sensor is small and easy to handle, the two-axis acceleration sensor can be formed in a small size so as not to hinder movement when the sensor unit is fixed to the athlete's body. . Moreover, since the two-axis acceleration sensor is inexpensive, the overall cost can be significantly reduced compared to the conventional product. When two acceleration sensors are used as a set, by adjusting their orientations, it is possible to sense the movement of the center of gravity of the body and the axis of the body during the competition according to the characteristics of the competition and the fixed position. It is possible.

[Submission date] June 28, 2002 (2002.2.628)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

[Means for Solving the Problems]

Thus, the gist of the present invention is to provide an acceleration sensor for detecting acceleration on two axes orthogonal to each other, a storage device for storing signals output by the acceleration sensor corresponding to each axis, A central processing unit that receives the signal of the acceleration sensor and stores the information in the storage device, a sensor unit including an information transmission unit that transmits the information stored in the storage device to an analysis device described later, and information in the sensor unit An information receiving unit that receives information transmitted from the transmitting unit, a database that analyzes the operation based on the received information and records the operation, and an analysis result of the database such as animation expression, graph display, sound change, etc. And an analysis device including an analysis result display means for displaying the motion in an expression method that can be visually or audibly confirmed.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

Reference numeral 9 denotes an analysis device, which comprises a personal computer, a small portable terminal, and the like using dedicated scientific software based on the characteristics of a game or exercise. The analyzing device 9 includes an information receiving unit 10 for receiving information transmitted from the information transmitting unit 8 in the sensor unit 1, and a database 11 for analyzing an operation based on the received information and recording the operation. And an analysis result display means 12 for displaying an analysis result of the database 11 in an animation expression, a graph display, and an expression method which makes it easy to visually or audibly confirm operations such as sound changes. .

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a motion analysis device according to the present invention.

FIG. 2 is an explanatory diagram of an arrangement of two two-axis acceleration sensors.

FIG. 3 is a diagram illustrating the operation of two two-axis acceleration sensors.

FIG. 4 is an explanatory diagram of an example of a combination of directions according to a game characteristic and a fixed position of two two-axis acceleration sensors.

FIG. 5 is an explanatory diagram of an example of a combination of orientations according to a game characteristic and a fixed position of two two-axis acceleration sensors.

FIG. 6 is an explanatory diagram of an example of a combination of directions according to a game characteristic and a fixed position of two two-axis acceleration sensors.

FIG. 7 is an explanatory diagram of an example of a combination of directions according to a game characteristic and a fixed position of two two-axis acceleration sensors.

FIG. 8 is an explanatory diagram of an example of a combination of orientations according to a game characteristic and a fixed position of two two-axis acceleration sensors.

FIG. 9 is an explanatory diagram of an example of a combination of orientations according to a game characteristic and a fixed position of two two-axis acceleration sensors.

FIG. 10 is a processing flowchart of the central processing unit in the sensor unit.

FIG. 11 is a processing flowchart of the central processing unit in the sensor unit.

FIG. 12 is a processing flowchart of the central processing unit in the sensor unit.

FIG. 13 is an explanatory view of how to use the present invention, showing a state in which the sensor unit is fixed to the body of a ski jumper.

FIG. 14 is an explanatory diagram of a method of using the present invention, showing a state in which a switch of a sensor unit is turned on.

FIG. 15 is an explanatory view of the method of use of the present invention, showing a state during flight.

FIG. 16 is an explanatory view of the method of use of the present invention, showing a state in which the switch of the sensor unit is turned off to remove the sensor unit from the body.

FIG. 17 is an explanatory view of a method of using the present invention, showing a state where the sensor unit is connected to the analyzer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sensor part 2 Case 3, 3 Two-axis acceleration sensor 4 Storage device 5 External sensor 6 External sensor connection terminal 7 Central processing unit (CPU) 8 Information transmission part 9 Analysis device 10 Information reception part 11 Database 12 Analysis result display means

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] June 28, 2002 (2002.6.2
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

Claims (5)

[Utility model registration claims] 1. An acceleration sensor for detecting accelerations on two axes orthogonal to each other, a storage device for storing signals output by the acceleration sensor corresponding to each axis, and receiving a signal from the acceleration sensor, A central processing unit that stores information in a storage device, a sensor unit that includes an information transmission unit that transmits information stored in the storage device to an analysis device, and receives information transmitted from the information transmission unit in the sensor unit An information receiving unit, a database for analyzing and recording the operation based on the received information, and an expression method for easily confirming the operation of the analysis result of the database, such as animation expression, graph display, sound change, etc. And an analysis device having an analysis result display means configured to display the result. 2. The motion analysis apparatus according to claim 1, wherein the sensor unit includes a connection terminal for an external sensor such as an altimeter and a light receiving sensor. 3. The motion analysis device according to claim 1, comprising two acceleration sensors. 4. The motion analysis device according to claim 1, wherein information is transmitted from an information transmission unit in the sensor unit to an information reception unit in the analysis device by wireless communication. 5. An information transmitting unit in the sensor unit, wherein information is directly transmitted from the information transmitting unit in the sensor unit to the information receiving unit in the analyzing device by connecting the sensor unit to the analyzing device. Motion analysis device.