JP2018033819A - Ball-hitting direction teaching device, ball-hitting direction teaching method, and ball-hitting direction teaching system - Google Patents

Abstract

To provide a hitting direction teaching device and a hitting direction teaching system capable of teaching a direction in which a golf ball should actually be launched in consideration of conditions such as topography and wind direction of a golf course. A hitting direction teaching device 20 includes a target direction acquisition unit 41 for acquiring a target direction of a hit ball, an environment information acquisition unit 42 for acquiring environment information, a target direction of the hit ball, and the hit ball based on the environment information. A processing unit 21 that determines the launch direction and generates notification data of the launch direction, and a notification unit (display unit 25) that notifies the launch direction based on the notification data are provided. [Selection] Figure 3

Description

  The present invention relates to a hitting direction teaching device, a hitting direction teaching method, and a hitting direction teaching system.

  In recent years, for example, the exercise form of a subject (user), such as a swing trajectory using a golf club, a tennis racket, and a baseball bat, is analyzed, and from the analysis results, an exercise apparatus suitable for the subject is selected and the exercise form is improved. A device (motion analysis device) has been realized that can be used to improve the competitiveness.

  As such a motion analysis device, a technique is disclosed in which a motion sensor is used to detect the timing of a ball hit or the like and a swing trajectory to perform a swing analysis or an example of a hitting ball direction. For example, Patent Document 1 discloses a golf course data providing system capable of obtaining approach information from the position of a player (user) to a pin using a portable information terminal on a golf course.

JP 2004-113440 A

  However, in the golf course data providing system (motion analysis device) in Patent Document 1, approach information from the position of the player (user) to the pin is helpful to the player, but depending on the situation such as the topography and wind direction of the golf course. Actually, the direction in which the golf ball should be launched has a problem that it is different.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A hitting direction teaching apparatus according to this application example includes a target direction acquisition unit that acquires a target direction of a hit ball, an environment information acquisition unit that acquires environment information, the target direction of the hit ball, and the environment information And a processing unit that determines the launch direction of the hit ball and generates notification data of the launch direction, and a notification unit that notifies the launch direction based on the notification data.

  According to this application example, the hitting direction of the hit ball obtained based on the target direction of the hit ball and the environmental information is notified by the notification unit, and thus the user can obtain information on the hit direction of the hit ball in consideration of the current environmental situation. Can be obtained.

  Application Example 2 In the hitting ball direction teaching apparatus according to the application example described above, it is preferable that the notification unit includes a display unit and displays the launch direction on the display unit.

  According to this application example, the hitting direction of the hit ball is displayed on the display unit, so that the user can easily understand the hit direction of the hit ball. The user can refer to the address of the swing to be hit, the strength of the swing, and the like based on the displayed information on the launch direction of the hit ball.

  Application Example 3 In the hitting ball direction teaching apparatus according to the application example described above, it is preferable that an input unit for inputting a target direction of the hitting ball is provided.

  According to this application example, the user can easily input the target direction of the hit ball at any time from the input unit.

  Application Example 4 In the hitting ball direction teaching apparatus according to the application example, it is preferable that the environmental information is at least one of a wind speed and a wind direction.

  According to this application example, it is possible to notify a hitting direction of a hit ball in consideration of information such as a wind speed and a wind direction as environmental information having a great influence on the trajectory of the hit ball.

  Application Example 5 In the ball striking direction teaching device described in the application example, it is preferable that the display unit displays the launch direction and at least one of the wind speed and the wind direction.

  According to this application example, the user can visually recognize the launch direction and the wind speed and the wind direction having a great influence on the trajectory of the hit ball on the display unit, and can easily understand them.

  Application Example 6 In the hitting ball direction teaching device according to the application example described above, a map data acquisition unit that acquires map data is provided, and the display unit displays the launch direction and a map image based on the map data. Is preferred.

  According to this application example, since the map image based on the map data is displayed on the display unit, the user can easily recognize the layout or the terrain of the place to swing, and can easily recognize the launch direction. .

  Application Example 7 A hitting direction teaching method according to this application example includes a step of determining a target direction of a hit ball, a step of acquiring environment information, a target direction of the hit ball, and launching a hit ball based on the environment information The method includes a step of obtaining a direction, a step of generating notification data of the launch direction, and a step of notifying the launch direction based on the notification data.

  According to this application example, the notifying unit notifies the user of the hit direction of the hit ball obtained based on the target direction of the acquired hit ball and the environmental information. Thereby, the user can easily obtain information regarding the hitting direction of the hit ball in consideration of the current environmental situation.

  Application Example 8 In the hitting direction teaching method according to the application example, it is preferable that the notification data is image data, and in the notification step, the launch direction is displayed based on the image data.

  According to this application example, the launch direction is displayed on the display unit based on the image data, so that the user can easily understand the launch direction of the hit ball. The user can refer to the address of the swing to be hit, the strength of the swing, and the like based on the displayed information on the launch direction of the hit ball.

  Application Example 9 In the hitting ball direction teaching method according to the application example, the environmental information is at least one of a wind speed and a wind direction, and in the informing step, a launch direction and at least one of the wind speed and the wind direction are included. Is preferably displayed.

  According to this application example, the user can visually recognize the launch direction and the wind speed and the wind direction having a large influence on the trajectory of the hit ball as environment information on the display unit, and can easily understand them.

  [Application Example 10] In the hitting ball direction teaching method according to the above application example, the method includes a step of acquiring map data, and the notifying step includes a launch direction of the hit ball based on the image data and a map based on the map data. It is preferable to display an image.

  According to this application example, since the map image and the hitting direction of the hit ball are displayed on the display unit, the user can easily recognize the layout of the place where the swing is made, the terrain, etc., and use it for the swing.

  Application Example 11 A hitting direction teaching system according to this application example includes a target direction acquisition unit that acquires a target direction of a hit ball, an environment information acquisition unit that acquires environment information, and a position information acquisition unit that acquires position information. A target direction of the hit ball and a launch direction of the hit ball based on the environmental information, a processing unit that generates notification data of the launch direction, a notification unit that notifies the launch direction based on the notification data, And a position information output unit that outputs the position information of the hit ball direction teaching apparatus, and an environment information output unit that detects environmental data and outputs it as the environment information. And

  According to this application example, the hitting direction teaching device constituting the hitting direction teaching system includes the position information of the hitting direction teaching device output from the position information output unit and the environment information output from the environment information output unit. Can be acquired. The hitting direction teaching device can notify the user of the hitting direction of the hitting ball in consideration of the acquired environmental information and position information. Thereby, the user can easily obtain information regarding the hitting direction of the hit ball in consideration of the current environmental situation.

  Application Example 12 In the hitting ball direction teaching system according to the application example, it is preferable that the notification unit includes a display unit, and the display unit displays the launch direction, the position information, and the environment information. .

  According to this application example, the launch direction, position information, and environment information are displayed on the display unit, so that the user can easily understand the launch direction. The user can refer to the address of the swing to be hit, the strength of the swing, and the like based on the displayed launch direction information.

Schematic which shows the structure of the hitting direction teaching system which concerns on embodiment. Schematic which shows a hitting direction teaching apparatus. The block diagram which shows the structural example of a sensor unit and a hitting direction teaching apparatus. The flowchart which shows the procedure of Example 1 which concerns on the hitting direction teaching method. FIG. 6 is a diagram illustrating a display example of a hitting direction of a hit ball according to the first embodiment. The flowchart which shows the procedure of Example 2 which concerns on the hitting direction teaching method. FIG. 10 is a diagram illustrating a first display procedure in a launch direction of a hit ball according to the second embodiment. FIG. 10 is a diagram illustrating a second display procedure in a hitting direction of a hit ball according to the second embodiment. The figure which shows the 3rd display procedure of the launch direction of the hit ball which concerns on Example 2. FIG. The figure which shows the 1st display which concerns on the display example 1 of a wind direction and a wind speed. The figure which shows the 2nd display which concerns on the example 1 of a display of a wind direction and a wind speed. The figure which shows the example 2 of a display of a wind direction and a wind speed. The figure which shows the example of a display which concerns on the launch direction of a hit ball. The figure which shows an example of the wind speed measuring method roughly. The block diagram which shows the structural example of a wind speed measuring apparatus. The flowchart which shows the procedure of the wind speed measuring method. Schematic explaining the wind speed measuring method. The graph of the supplementary explanation which concerns on a wind speed measuring method. Graph 1 explaining a wind speed measuring method. Graph 2 explaining a wind speed measuring method.

  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. Hitting Direction Instruction System Hereinafter, as an example of a hitting direction teaching system, teaching of a hitting direction of a golf ball in a golf swing will be described as an example with reference to FIGS. 1 and 2. FIG. 1 is a schematic diagram illustrating a configuration of a hitting direction teaching system according to the embodiment. FIG. 2 is a schematic view showing a hitting direction teaching device.

  As shown in FIGS. 1 and 2, a hitting direction teaching system 1000 according to the present embodiment includes a GPS satellite (position information output unit) 8, an anemometer 9 as an environment information output unit, a sensor unit 10, and a hitting direction teaching. Device 20. Communication between the sensor unit 10 and the hitting direction teaching device 20 may be wireless communication or wired communication. As shown in FIG. 2, in addition to the personal computer 20a, the hitting direction teaching device 20 is a portable device 20b such as a smartphone or a tablet, or a wearable terminal such as a head mounted display (HMD) or wrist device (not shown). This is realized by various information terminals (client terminals). The hitting direction teaching device 20 can include a swing analysis function (swing analysis device) for diagnosing and analyzing a swing based on the measurement data of the sensor unit 10.

  The hitting direction teaching system 1000 detects the position data included in the radio wave (satellite signal) from the GPS satellite 8 and detects the position data (acquisition of position information) and environmental data such as wind direction and wind speed. A function of receiving a signal from the anemometer 9 output as environmental information and calculating a wind direction and a wind speed. Further, the hitting direction teaching system 1000 obtains the target direction of the hit ball, generates a hit ball launch direction based on the target direction of the hit ball, the wind direction, and the wind speed (environment information), and generates notification data of the hit direction of the hit ball And a function of informing the launch direction of the hit ball.

  The hitting direction teaching device 20 may be connected to a server 30 that stores information such as golf course terrain data and course layout (course layout) data. Further, the hitting direction teaching device 20 and the server 30 may be connected via the network 40. The network 40 may be a wide area network (WAN) such as the Internet or a local area network (LAN). Alternatively, the hitting direction teaching device 20 and the server 30 may communicate without using the network 40 by, for example, short-range wireless communication or wired communication.

2. Sensor unit and hitting direction teaching device A configuration example of the sensor unit and the hitting direction teaching device will be described with reference to FIG. FIG. 3 is a block diagram showing a configuration example of the sensor unit and the hitting direction teaching device.

  The sensor unit 10 of this embodiment includes an acceleration sensor 12, an angular velocity sensor 14, a signal processing unit 16, and a communication unit 18. However, the sensor unit 10 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added as appropriate.

  The sensor unit 10 can measure, for example, accelerations in the directions of three axes orthogonal to each other and angular velocities around the axes of the three axes orthogonal to each other. (See FIG. 2). The sensor unit 10 has three detection axes (for example, an x-axis, a y-axis, and a z-axis (not shown)) that intersect with each other (ideally orthogonally) and are aligned with each other to form a golf club (an example of an exercise device) 3. Installed. Specifically, for example, the y-axis is aligned with the longitudinal direction of the shaft 3s of the golf club 3 (longitudinal direction of the golf club 3), and the x-axis is aligned with the target direction of the hit ball (the target direction of the hit ball). And attached to a part of the shaft 3s. The shaft 3s is a handle portion excluding the head (striking portion) 3a of the golf club 3, and includes a grip. However, the sensor unit 10 may be attached to a part of the user 2 (for example, the hand 2a or a glove), or may be attached to an accessory such as a wristwatch.

  The acceleration sensor 12 measures the acceleration generated in each of the three axial directions that intersect (ideally orthogonal) with each other, and a digital signal (acceleration data) corresponding to the magnitude and direction of each measured acceleration in the three axial directions. ) Is output.

  The angular velocity sensor 14 measures an angular velocity generated around each of three axes that intersect (ideally orthogonal) with each other, and a digital signal (in accordance with the magnitude and direction of each measured angular velocity in the three axis directions). Output angular velocity data).

  The signal processing unit 16 receives acceleration data and angular velocity data from the acceleration sensor 12 and the angular velocity sensor 14, respectively, attaches time information to the storage unit (not shown), and stores the stored measurement data (acceleration data and angular velocity data). ) Is added with time information to generate packet data in accordance with the communication format and output to the communication unit 18. The signal processing unit 16 performs a process of converting the acceleration data and the angular velocity data into data in the xyz coordinate system using a correction parameter calculated in advance according to the mounting angle error of the acceleration sensor 12 and the angular velocity sensor 14. Can do.

  The communication unit 18 receives the packet data received from the signal processing unit 16 from the hitting direction teaching device 20 and receives various control commands such as a measurement start command from the hitting direction teaching device 20 and sends them to the signal processing unit 16. Processing to send is performed. The signal processing unit 16 performs various processes according to the control command.

  The hitting direction teaching device 20 of the present embodiment includes a processing unit 21, a communication unit 22, an operation unit 23 as an input unit, a storage unit 24, a display unit 25 as a notification unit, a sound output unit 26 as a notification unit, and a communication unit. 27, a target direction acquisition unit 41, an environment information acquisition unit 42, a position information acquisition unit 43, and a map data acquisition unit 44. However, the hitting direction teaching device 20 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added as appropriate.

  The processing unit 21 performs processing for transmitting a control command to the sensor unit 10 via the communication unit 22 and various types of calculation processing for data received from the sensor unit 10 via the communication unit 22 according to various programs. Further, the processing unit 21 performs analysis processing on various data acquired by the target direction acquisition unit 41, the environment information acquisition unit 42, the position information acquisition unit 43, the map data acquisition unit 44, and the like according to various programs, for example, launching a hit ball The data can be stored in the storage unit 24 as direction data or environmental information data. Further, the processing unit 21 performs processing of reading out data such as hitting direction data, swing analysis data, and map data from the storage unit 24 and transmitting the data to the server 30 via the communication unit 27 according to various programs. Can do. The processing unit 21 can generate display data as notification data in the launch direction, for example, according to various programs, and output the display data to the display unit 25 as the notification unit. The processing unit 21 can perform other various control processes, and details will be described later.

  The communication unit 22 receives the packet data transmitted from the sensor unit 10 and performs processing for sending the packet data to the processing unit 21, processing for transmitting a control command from the processing unit 21 to the sensor unit 10, and the like.

  The operation unit 23 as an input unit performs processing for acquiring data corresponding to the operation of the user 2 and sending the data to the processing unit 21. The operation unit 23 may be, for example, a touch panel display, buttons, keys, a microphone, or the like.

  The storage unit 24 includes, for example, a ROM (Read Only Memory) 230, a RAM (Random Access Memory) 240, and a nonvolatile memory 250. The storage unit 24 may include other various IC memories, recording media such as a hard disk and a memory card, and the like. The storage unit 24 stores programs for the processing unit 21 to perform various calculation processes and control processes, various programs and data for realizing application functions, and the like.

  The ROM 230 stores programs for the processing unit 21 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 21, and programs and data read from the ROM 230, data input from the operation unit 23, calculation results executed by the processing unit 21 according to various programs and application functions. It is a storage unit that temporarily stores and the like. The nonvolatile memory 250 can store, for example, a swing analysis program for executing a swing analysis process, a processing program for processing environment information, and the like.

  In the present embodiment, the storage unit 24 stores a swing analysis program that is read by the processing unit 21 and that executes a swing analysis process. The swing analysis program may be stored in advance in a non-volatile recording medium (computer-readable recording medium), or the processing unit 21 receives the swing analysis program from the server 30 via the network 40 and stores the swing analysis program. 24 may be stored.

  Further, for example, the user 2 operates the operation unit 23 as an input unit to input the hitting ball arrival target position and the hitting ball target direction from the input screen shown in FIG. Alternatively, the target direction 33 of the hit ball may be used. Thus, the user 2 can easily input the hit target position 32 and the target direction 33 of the hit ball easily at any time from the operation unit 23 as an input unit.

  The storage unit 24 is used as a work area of the processing unit 21, and temporarily stores data acquired by the operation unit 23, calculation results executed by the processing unit 21 according to various programs, and the like. Furthermore, the memory | storage part 24 may memorize | store the data which require long-term preservation | save among the data produced | generated by the process of the process part 21. FIG.

  The display unit 25 as an example of the notification unit displays the processing result of the processing unit 21 as a character, graph, table, animation, or other image. The display unit 25 may be, for example, a CRT (Cathode Ray Tube), an LCD (liquid crystal display), a touch panel display, a head mounted display (HMD), or the like. In addition, you may make it implement | achieve the function of the operation part 23 and the display part 25 with one touchscreen type display.

  As shown in FIG. 5, in response to an instruction from the processing unit 21, the display unit 25 has at least one of a hit ball position 31, a hit target position 32, a hit ball target direction 33, a wind direction and a wind speed as environment information. Is displayed as image information, and the hitting direction 35 of the hit ball based on the wind information 34 is displayed. In addition, FIG. 5 is a figure which shows the example of a display of the launch direction of the hit ball based on Example 1, and has shown the display screen (display part 25) of portable devices 20b, such as a smart phone and a tablet. Moreover, what is necessary is just to display on the display part 25 the launch direction 35 of a hit ball, and the wind power information 34 of at least one of a wind speed and a wind direction. Thus, the user 2 can visually recognize and understand the launch direction 35 and the wind speed and direction that have a great influence on the trajectory of the hit ball on the display unit 25.

  In the example shown in FIG. 5, the target direction 33 of the hit ball is indicated by an arrow connecting the hit ball position 31 and the hit target position 32 of the hit ball. In addition, the wind power information 34 can show a wind direction by the direction of an arrow, and can express a wind speed by the thickness or length of an arrow. Specifically, it indicates that the wind speed is high by increasing the width (thickness) of the arrow or by increasing the length of the arrow. The wind speed may be expressed numerically. The wind power information 34 only needs to include at least one of the wind direction and the wind speed.

  Then, the user 2 can determine a hitting direction based on the hitting direction 35 of the displayed hitting ball and hit the hitting ball. In FIG. 5, the wind force information 34 and the hit ball 35 are displayed, but the wind force information 34 may not be displayed and only the hitting direction 35 of the hit ball may be displayed.

  By displaying the hitting direction 35 of the hit ball on the display unit 25 by the above-described image, the user 2 can easily understand the hit direction of the hit ball. The user 2 can refer to the address of the swing to be hit and the strength of the swing based on the display (information) of the hitting direction 35 of the hit ball displayed in the image.

  Note that, as a function of the operation unit 23 (input unit) in the display unit 25, display contents can be switched or enlarged / reduced by touching the display unit 25 (screen touch) or the like. In this way, by designating the display contents to the operation unit 23 of the display unit 25, it is possible to directly instruct and reliably and easily instruct.

  The sound output unit 26 as an example of the notification unit outputs the processing result (analysis information) of the processing unit 21 to present it as sound information such as sound and buzzer sound. The sound output unit 26 may be, for example, a speaker or a buzzer. For example, the notification related to the hitting direction of the hit ball can be performed by combining image display on the display unit 25 and sound information such as sound and buzzer sound on the sound output unit 26.

  The communication unit 27 performs data communication with the server 30 (see FIG. 1) via the network 40. For example, the communication unit 27 performs processing for receiving information such as swing analysis information and course layout information related to the swing of the user 2 from the server 30 and sending the information to the processing unit 21.

  The target direction acquisition unit 41 acquires the target direction of the hit ball in the swing of the user 2. The target direction of the hit ball is calculated based on data such as the direction of the display unit 25 and the detection result of an orientation sensor (not shown), and data such as the hit ball position and the hit target position of the hit ball input from the operation unit 23. The target direction acquisition unit 41 outputs data relating to the calculated target direction of the hit ball to the processing unit 21.

  The environment information acquisition unit 42 acquires environment information (for example, wind direction and wind speed) acquired by the anemometer 9 as the environment information detection unit and output from the environment information output unit 90. The environment information acquisition unit 42 processes the acquired environment information and outputs it to the processing unit 21 as environment data indicating, for example, the wind direction and the magnitude of the wind speed.

  The position information acquisition unit 43 receives position information included in the radio wave (satellite signal) from the GPS satellite 8 as the position information output unit, performs positioning calculation (acquisition of position information), and presents the current direction of the hitting direction teaching device 20 Calculate position data. The position information acquisition unit 43 outputs the obtained current position data to the processing unit 21.

  The map data acquisition unit 44 acquires, for example, golf course terrain data and arrangement layout data stored in the server 30 and the storage unit 24 via the network 40, and generates map data. The map data acquisition unit 44 outputs the generated map data to the processing unit 21.

  Although a part was demonstrated in the front | former stage, the process part 21 can perform various control processing. Hereinafter, the processing unit 21 will be described in detail.

  The processing unit 21 executes various programs to thereby obtain a data acquisition unit 210, a swing analysis unit 211, an image data generation unit 212, an environmental information processing unit 213, a hitting direction processing unit 214, a map data processing unit 215, and a display processing unit. 216 and a sound output processing unit 217. The processing unit 21 has a function as a computer.

  In particular, in the present embodiment, the processing unit 21 executes various analysis programs to thereby obtain a data acquisition unit 210, a swing analysis unit 211, an image data generation unit 212, an environmental information processing unit 213, a hit ball direction processing unit 214, a map. It functions as a data processing unit 215, a display processing unit 216, and a sound output processing unit 217, and performs analysis of the swing motion of the user 2 and generation processing of hitting direction data.

  The data acquisition unit 210 receives the packet data received from the sensor unit 10 by the communication unit 22, acquires time information and measurement data from the received packet data, and performs processing to send to the storage unit 24.

  The swing analysis unit 211 analyzes the swing operation (a plurality of swings) of the user 2 using measurement data output from the sensor unit 10 (measurement data stored in the storage unit 24), data from the operation unit 23, and the like. Then, a process of generating swing analysis data including information on the analysis result of the swing motion is performed.

  The image data generation unit 212 performs processing for generating image data corresponding to the image displayed on the display unit 25. For example, the image data generation unit 212 is based on various information received by the data acquisition unit 210 and information (data) processed by the environmental information processing unit 213, the hitting ball direction processing unit 214, and the map data processing unit 215. Image data corresponding to the display image shown in FIG. 5 is generated.

  Further, the image data generation unit 212 performs a process of generating display data such as image data corresponding to the display image shown in FIG. For example, the image data generation unit 212 generates image data for displaying the shot launch direction 35, the hit target position 32, and the like based on the processing data of the environment information processing unit 213, the hitting direction processing unit 214, and the like. .

  The environment information processing unit 213 performs data processing for calculating the launch direction of the hit ball, for example, information such as the wind direction and the wind speed as the environment information acquired by the environment information acquisition unit 42, and generates environment information data. The environmental information data is processed by the hitting direction processing unit 214 together with data for displaying the target direction 33 of the hit ball and the hit target position 32 of the hit ball, and becomes data for displaying the hit direction 35 of the hit ball.

  The display processing unit 216 displays various images (images corresponding to the image data generated by the image data generation unit 212, map image data generated by the map data processing unit 215, characters, symbols, etc.) on the display unit 25. Display) is displayed. For example, based on the image data generated by the image data generation unit 212, the display processing unit 216 displays on the display unit 25 the hit ball position 31, the hit target position 32, the hit ball target direction 33, and the environment information shown in FIG. As wind power information 34 indicating the wind direction and wind speed, and image information indicating the hitting direction 35 of the hit ball based on the wind power information 34. The display processing unit 216 can display the image information indicating a course layout image, a terrain image, or the like as shown in FIG. 7A based on the map image data generated by the map data processing unit 215.

  In addition, the display processing unit 216 can display comments on the display unit 25 together with various images displayed as images. The comment may be information on the hitting direction 35 of the hit ball or information indicating a practice method based on the swing diagnosis information.

  The sound output processing unit 217 performs processing for causing the sound output unit 26 to output various sounds (including sound and buzzer sound). For example, the sound output processing unit 217 may cause the sound output unit 26 to output a sound for notifying the user 2 of permission to start swing. Further, for example, the sound output processing unit 217 may output a sound or a sound indicating the wind force information 34 indicating the wind direction and the wind speed as the environment information from the sound output unit 26.

  The hitting direction teaching device 20 or the sensor unit 10 may be provided with a vibration mechanism as an example of a notification unit, and various information may be converted into vibration information by the vibration mechanism and notified to the user 2.

3. Method for Teaching Hitting Direction Prior to the swing motion of hitting the golf ball 4, the user 2 determines the hitting direction of the hitting ball according to a predetermined procedure. Hereinafter, Embodiment 1 and Embodiment 2 of the procedure for determining the hit direction of the hit ball in the hit direction teaching method will be described. In the following description, the symbols used for the description of the configurations of the hitting direction teaching system 1000 and the hitting direction teaching device 20 described above are used.

3.1. Example 1
First, the procedure of Example 1 will be described with reference to FIGS. FIG. 4 is a flowchart showing the procedure of the first embodiment according to the hitting direction teaching method. FIG. 5 is a diagram illustrating a display example of a hitting direction of a hit ball according to the first embodiment. The hitting direction teaching method according to the first embodiment displays the hitting direction of the hitting ball in consideration of the wind direction and the wind speed as an example of the environmental information on the display unit 25 prior to hitting.

  In the hitting direction teaching method according to the first embodiment, step S102 for determining the target direction of the hit ball, step S104 for acquiring environment information, step S106 for calculating the hit direction of the hit ball, and generating notification data (display data). Step S108 to perform, and step S110 to notify (display) the launching direction of the hit ball.

  First, when a series of procedures by the user 2 is started, the processing unit 21 of the hitting direction teaching device 20 acquires the current position data acquired by the position information acquisition unit 43. Next, the user 2 operates the operation unit 23 as an input unit, and inputs the hit target position 32 of the hit ball position 31 as shown in FIG. 33 is determined (step S102).

  Next, the processing unit 21 of the hitting direction teaching device 20 acquires the wind direction and wind speed information as the environment information acquired by the environment information acquisition unit 42 (step S104). And the process part 21 performs the data process for calculating the launch direction of a hit ball based on at least one information of the acquired wind direction and wind speed, and produces | generates environmental information data.

  Next, the processing unit 21 calculates data related to the hit direction of the hit ball in consideration of the wind direction and the wind speed based on the data related to the target direction of the hit ball and the environment information data generated based on the information on the wind direction and the wind speed. (Step S106).

  Next, in the image data generation unit 212, the processing unit 21 generates image data (notification data) corresponding to an image displayed on the display unit 25 of the mobile device 20b such as a smartphone or a tablet (step S108). Specifically, for example, the wind power indicating the wind direction and the wind speed based on the image data for displaying the target direction 33 of the hit ball shown in FIG. 5, the image data for displaying the hit direction 35 of the hit ball, and the environmental information data. Image data (notification data) for displaying the information 34 is generated.

  Next, the processing unit 21 displays (notifies) the target direction 33 of the hit ball, the launch direction 35 of the hit ball, and the wind force information 34 on the display unit 25 based on the image data (notification data) (step S110). Here, it is preferable to display the target direction 33 of the hit ball, the hit direction 35 of the hit ball, and the wind force information 34 by symbols such as arrows. The wind power information 34 can indicate the wind direction by the direction of the arrow, and the magnitude of the wind speed by the thickness or length of the arrow.

  The display unit 25 displays at least a target direction 33 of the hit ball and a hit direction 35 of the hit ball. By displaying the target direction 33 of the hit ball and the hit direction 35 of the hit ball, the user 2 can accurately grasp the hit direction of the hit ball.

  In step S110 for displaying (notifying) on the display unit 25, it is preferable to display an image of the hitting direction 35 of the hit ball and the wind force information 34 of at least one of the wind speed and the wind direction on the display unit 25. With such a display, the user 2 can visually recognize the launch direction 35 and the wind speed and direction that have a large influence on the trajectory of the hit ball as environmental information as an image on the display unit 25 and can easily understand it. can do.

  According to the hitting direction teaching method according to the first embodiment described above, the user 2 uses the hitting ball target direction 33, the hitting ball launch direction 35, and the wind force information 34 displayed (notified) on the display unit 25 as the notification unit. In addition, it is possible to easily obtain information regarding the hitting direction 35 of the hit ball in consideration of the current environmental situation (wind direction and wind speed).

  Further, according to the hitting direction teaching method according to the first embodiment, the user 2 displays the hitting direction 35 of the hitting ball and the wind speed and direction (winding information 34) that have a large influence on the trajectory of the hitting ball as the environmental information. It can be visually recognized as an image above and can be easily understood.

3.2. Example 2
Next, the procedure of Example 2 will be described with reference to FIG. 6 and FIGS. 7A to 7C. FIG. 6 is a flowchart showing a procedure of the second embodiment according to the hitting direction teaching method. FIG. 7A is a diagram illustrating a first display procedure of the hitting direction of the hit ball according to the second embodiment. FIG. 7B is a diagram illustrating a second display procedure of the hitting direction of the hit ball according to the second embodiment. FIG. 7C is a diagram illustrating a third display procedure of the hitting direction of the hit ball according to the second embodiment. In the following description, the symbols used for the description of the configurations of the hitting direction teaching system 1000 and the hitting direction teaching device 20 described above are used.

  The hitting direction teaching method according to the second embodiment displays on the display unit 25 map information such as the hitting direction and course layout considering the wind direction and wind speed as an example of environmental information prior to hitting. is there.

  The hitting direction teaching method according to the second embodiment includes step S100 for acquiring map data, step S101 for generating map image data and displaying the map image, step S102 for determining the target direction of the hitting ball, and environment information. Step S104 to be acquired, Step S106 for calculating the launch direction of the hit ball, Step S108 for generating notification data (display data), and Step S110 for notifying (displaying) the launch direction of the hit ball are included.

  First, when a series of procedures by the user 2 is started, the processing unit 21 of the hitting direction teaching device 20 acquires the current position data acquired by the position information acquisition unit 43.

  Next, the processing unit 21 acquires map data such as, for example, golf course arrangement layout data and terrain data from the map data acquisition unit 44 (step S100). And the process part 21 produces | generates map image data based on the acquired map data, for example, displays it on the display part 25 as the map image 36 which shows the arrangement layout of a golf course as shown to FIG. 7A (step S101).

  Next, the user 2 operates the operation unit 23 as an input unit, and inputs the hit target position 32 of the hit ball position 31 as shown in FIG. The target direction 33 of the hit ball displayed by the arrow on the display unit 25 is determined (step S102).

  Next, the processing unit 21 of the hitting direction teaching device 20 acquires the wind direction and wind speed information as the environment information acquired by the environment information acquisition unit 42 (step S104). The processing unit 21 generates environment information data by performing data processing for calculating the launch direction of the hit ball based on the acquired information on at least one of the wind direction and the wind speed. And the process part 21 produces | generates image data based on environmental information data, and displays it on the display part 25 on the map image 36 as the wind power information 34 which shows a wind direction and a wind speed, as shown to FIG. 7B. The wind power information 34 can indicate the wind direction by the direction of an arrow, and the magnitude of the wind speed can be represented by the width (thickness) of the arrow or the length of the length.

  Next, the processing unit 21 calculates the launch direction of the hit ball in consideration of the wind direction and the wind speed, based on the data related to the target direction of the hit ball and the environment information data generated based on the information on the wind direction and the wind speed (step) S106).

  Next, in the image data generation unit 212, the processing unit 21 generates image data (notification data) corresponding to an image displayed on the display unit 25 of the mobile device 20b such as a smartphone or a tablet (step S108). Specifically, for example, the wind power indicating the wind direction and the wind speed based on the image data for displaying the target direction 33 of the hit ball shown in FIG. 7C, the image data for displaying the hit direction 35 of the hit ball, and the environmental information data. Image data (notification data) for displaying the information 34 is generated.

  Next, as shown in FIG. 7C, the processing unit 21 displays (informs) the hitting direction 35 of the hit ball on the display unit 25 so as to overlap the map image 36 based on the image data (notification data) (step S110). ). The display unit 25 displays at least the target direction 33 of the hit ball and the hit direction 35 of the hit ball. By displaying the target direction 33 of the hit ball and the hit direction 35 of the hit ball, the user 2 can accurately grasp the hit direction 35 of the hit ball. Further, as shown in FIG. 7C, the estimated trajectory 38 of the hit ball may be displayed on the display unit 25.

  According to the hitting direction teaching method according to the second embodiment described above, the target direction 33 of the hitting ball, the hitting direction 35 of the hitting ball, the wind force information 34, and the map image (map information) 36 are displayed (notified). ) Therefore, the user 2 can determine the direction in which the golf ball 4 is launched in consideration of the current environmental conditions (wind direction and wind speed) while referring to the layout and terrain of the place to swing, and can make use of the golf ball 4 for the swing. .

  In the procedure of the first embodiment and the second embodiment described above, the method of informing the display unit 25 of the target direction 33 of the hit ball, the launch direction 35 of the hit ball, and the like as an example of the notifying unit is illustrated. Is not limited to image display. For example, the sound output unit 26 serving as a notification unit can be notified of information on the direction in which the ball is launched, wind power information, and the like as sound information. Moreover, you may alert | report combining image information and sound information.

3.3. Other Display Examples Other display examples on the display unit 25 described above will be described below with reference to FIGS. 8A, 8B, 9, and 10. FIG. FIG. 8A is a diagram showing a first display according to Display Example 1 of wind direction and wind speed. FIG. 8B is a diagram showing a second display according to the display example 1 of the wind direction and the wind speed. FIG. 9 is a diagram showing a display example 2 of the wind direction and the wind speed. FIG. 10 is a diagram showing a display example related to the teaching of the hitting direction of the hit ball. In the following description, the symbols used for the description of the configurations of the hitting direction teaching system 1000 and the hitting direction teaching device 20 described above are used.

3.3.1. Display example 1 showing wind direction and wind speed
First, the display example 1 which shows a wind direction and a wind speed is demonstrated using FIG. 8A and 8B. In the display example 1 shown in FIGS. 8A and 8B, the wind direction and the wind speed at the same altitude as the hit position (address position) of the user 2 or the wind direction at a predetermined height (the sky) based on the hit position of the user 2 Wind speed information (environment data) is displayed on the display unit 25 as an image.

  In the first display of wind direction and wind speed display example 1 shown in FIG. 8A, as wind power information for displaying the wind direction and wind speed at each of a plurality of positions 10 m above the hitting position of the user 2, for example, an arrow 54 a , 54b, 54c, 54d, etc. In the first display according to the display example 1 shown in FIG. 8A, the map image 36 is displayed on the display unit 25, and the wind direction and the wind speed at a plurality of positions are overlapped on the map image 36, and arrows 54a, 54b, 54c, 54d. The image is displayed with the difference in direction and length. In addition, a height setting unit 51 that can set the height for displaying the wind direction and the wind speed is provided in one frame portion of the display unit 25, and the height can be changed (set) by two instruction buttons 53a and 53b. In the example of the figure, a height of 10 m (the sky above 10 m) where the height display unit 52 is located is shown. The wind speed can be expressed by the difference in the thickness of the arrows 54a, 54b, 54c, 54d. For example, by increasing the thickness of the arrows 54a, 54b, 54c, 54d, it can be expressed that the wind speed is high.

  Further, in the second display according to the wind direction and wind speed display example 1 shown in FIG. 8B, for each of a plurality of positions 30 m above the hitting position of the user 2, the wind direction information and wind speed at that position are displayed as wind power information. For example, it is indicated by arrows 55a, 55b, 55c, and 55d. In the second display according to the display example 1 shown in FIG. 8B, the map image 36 similar to the first display is displayed on the display unit 25, and the wind direction and the wind speed at a plurality of positions are overlapped on the map image 36, and the arrows It is expressed by the difference in direction and length of 55a, 55b, 55c, and 55d, and is displayed as an image.

  Similar to the first display, a height setting unit 51 capable of setting the height for displaying the wind direction and the wind speed is provided in one frame portion of the display unit 25, and two instruction buttons 53a, The height can be changed (set) by 53b. In the example of FIG. 5, the height of 30 m (30 m above) where the height display unit 52 is located is shown. In addition, the arrows 55a, 55b, 55c, and 55d of the second display (over 30 m) according to the display example 1 shown in FIG. 8B indicate the first display (up over 10 m) according to the display example 1 shown in FIG. 8A. It is longer than the arrows 54a, 54b, 54c, 54d, and the second display (30m above) indicates that the wind speed is higher.

  According to such display example 1, the user 2 can set an arbitrary height, display the wind direction and the wind speed at the height, and in the course of the trajectory (flight) of the launched golf ball 4 You can know the influence of wind direction and wind speed.

3.3.2. Display example 2 showing wind direction and speed
Next, the display example 2 which shows a wind direction and a wind speed is demonstrated using FIG. In the display example 2 shown in FIG. 9, the wind direction and wind speed at the same altitude as the hitting position of the user 2 or the information (environmental data) of the wind direction and the wind speed at a predetermined height (over the sky) based on the hitting position of the user 2 is displayed. These are displayed on the display unit 25 by arrows 56a, 56b and 56c of streamlines.

  In the display example 2 as well, as in the display example 1, the user 2 can set an arbitrary height and display the wind direction and the wind speed at the height, and the trajectory ( It is possible to know the influence of wind direction and wind speed in the process of flight.

3.3.3. Display Example Related to Teaching Direction of Hitting Ball Next, a display example related to teaching the hitting direction of the hit ball will be described with reference to FIG. In the display example shown in FIG. 10, the estimated trajectory 58b of the hit ball by the selected golf club is measured by a plurality of observation points (an anemometer 9 as an environmental information output unit) at a height position where the golf ball 4 passes. The plane trajectory 58a is estimated in consideration of the wind direction and wind speed information (environmental data) 57a to 57f, and the hitting direction 59 of the hit ball set along the estimated trajectory 58a is displayed on the display unit 25 as an image. Yes. Such estimation of the trajectory of the golf ball 4 is disclosed in, for example, Japanese Patent Application Laid-Open No. 2005-278797, if it can be performed as follows.

  Drag F, lift L, and gravity mg act on the flying golf ball 4. At this time, the equation of motion of the golf ball 4 in the horizontal (x) direction is expressed by the following equation (1). The equation of motion of the golf ball 4 in the vertical (y) direction is expressed by the following equation (2). In the following formulas (1) and (2), m is the mass of the golf ball 4 and θ is the flight angle or launch angle. The flight angle (launch angle) θ is expressed by the following formula (3). Further, the drag D in the formulas (1) and (2) is represented by the following formula (4), and the lift L is represented by the following formula (5). U in the following formula (4) and the following formula (5) is the speed of the golf ball 4. The speed U of the golf ball 4 is represented by the following formula (6). Further, CD in the following formula (4) and formula (5) is a drag coefficient, CL is a lift coefficient, and ρ is an air density. As the density ρ of air, a value at a temperature of 20 ° C. and a pressure of 1 atmosphere (1.013 kPa) is used.

  Initial velocity immediately after hitting the golf ball 4, launch angle immediately after hitting the golf ball, and backspin amount immediately after hitting (hereinafter referred to as initial velocity immediately after hitting the golf ball, launch angle immediately after hitting, and immediately after hitting The backspin amount is collectively referred to as an initial ballistic characteristic value), a golf ball flight distance, and a flight time are measured. Based on the measurement results, the golf ball flight is performed using the above formulas (1) to (6) so that the flight distance and flight time of the golf ball 4 are within the predetermined error range from the measured values. The average drag coefficient inside and the average lift coefficient during flight are calculated to calculate the trajectory of the golf ball.

  The drag coefficient and the lift coefficient during the flight of the golf ball 4 vary depending on the speed of the golf ball, the spin rate, and the like. However, in this embodiment, the drag coefficient CD and the lift coefficient CL from hitting to landing are treated as constant constants that do not change, and are defined as the average drag coefficient and the average lift coefficient. The projected area A of the golf ball 4 and the air density ρ are also constant. Thus, the trajectory of the golf ball 4 can be calculated by measuring the initial trajectory characteristic value, the flight distance, and the flight time.

  In the display example shown in FIG. 10, a map image 36 indicating a golf course is displayed in the upper stage, the hit ball position 31, the hit target position 32, the hit ball target direction 33, and a plurality of observation points (environment information) Wind direction and wind speed information (environmental data) 57a to 57f measured by an anemometer 9) serving as an output unit and a hitting direction 59 of a hit ball are displayed in an overlapping manner. Further, in the display example shown in FIG. 10, the estimated trajectory 58b in the height direction and the wind speed information (environmental data) 57a to 57f at each observation point are shown as bar graphs in the lower stage.

  In the display example relating to the teaching of the hitting direction of the hit ball, since the estimated trajectory 58b of the selected golf club is displayed, the user 2 visually recognizes the influence of the wind direction and the wind speed on the trajectory in more detail. can do.

4). Wind Speed Measuring Device and Wind Speed Measuring Method as Environmental Information Output Unit In the above-described hitting direction teaching system 1000, for example, an anemometer 9 as an environmental information output unit installed on a golf course or the like is used to acquire a wind direction, a wind speed, or the like. Although the configuration to be used has been exemplified and described, the environment information output unit is not limited to the anemometer 9. For example, a wind speed measuring method using the wind speed measuring apparatus 200 as an environment information output unit described with reference to FIGS. 11 to 16B can be applied.

  Here, FIG. 11 is a diagram schematically showing an example of a wind speed measuring method. FIG. 12 is a block diagram illustrating a configuration example of the wind speed measuring apparatus. FIG. 13 is a flowchart showing the procedure of the wind speed measuring method. FIG. 14 is a schematic diagram illustrating a wind speed measuring method. FIG. 15 is a supplementary explanation graph relating to the wind speed measuring method. FIG. 16A is a graph 1 illustrating a wind speed measuring method. FIG. 16B is a graph 2 illustrating a wind speed measuring method. In addition, about the structure similar to the above-mentioned hitting direction teaching system 1000, it demonstrates using the same code | symbol.

4.1. Outline of Wind Speed Measuring Device As shown in FIG. 12, the wind speed measuring device 200 as an environmental information output unit falls from an arbitrary height such as the hand of the user 2 and detects the acceleration, and the falling body. And a calculation device 70 that calculates the wind speed based on the detected acceleration of 60. Communication between the falling body 60 and the calculation device 70 may be wireless communication or wired communication. Although not shown, the calculation device 70 is a personal computer, a portable device such as a smartphone or a tablet, or various information terminals (client terminals) such as a wearable terminal such as a head mounted display (HMD) or a wrist device. Realized.

  As shown in FIG. 11, when a body (falling body 60) that freely falls from a position of height h is subjected to a crosswind at a wind speed v, it is swept away by the crosswind and does not fall vertically on the ground. (Hereinafter, referred to as “flying distance L”), it falls to the position of the falling body 60b that deviates from the vertical drop position 60a in the case of the vertical drop. In other words, the flying distance L is the distance between the vertical drop position 60a of the falling body 60 and the falling body 60b that has fallen due to the crosswind at the wind speed v. The wind speed measuring apparatus 200 according to the present embodiment obtains the wind speed v at this time from the fall height h and the flying distance L to the vertical drop position 60a estimated from the acceleration detected by the falling body 60.

4.2. Falling body The falling body 60 includes an acceleration sensor (X) 61 that measures acceleration in each axial direction, which is a three-axis relationship (ideally an orthogonal relationship) inside a housing (not shown), and an acceleration sensor. (Y) 62, an acceleration sensor (Z) 63, a control unit 64 that performs various controls, a communication unit 65 that transmits an acceleration measurement result to the calculation device 70, and a power supply unit 67. The falling body 60 can measure accelerations in the three axial directions orthogonal to each other. Note that the housing (not shown) is only required to be able to measure acceleration in free fall, and may be of any shape, for example, a thin flat plate shape (plate shape) or a configuration in which a wing is provided on the main body. . However, the falling body 60 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added as appropriate.

  The acceleration sensor (X) 61, the acceleration sensor (Y) 62, and the acceleration sensor (Z) 63 measure and measure the accelerations generated in each of the three axial directions that intersect (ideally orthogonal) each other. A digital signal (acceleration data) corresponding to the magnitude and direction of each acceleration in the three axis directions is output.

  The control unit 64 includes an acceleration measurement unit 66, and performs processing related to measurement of acceleration, generation and output of data, and various control processes. The acceleration measuring unit 66 processes the acceleration data measured by the acceleration sensor (X) 61, the acceleration sensor (Y) 62, and the acceleration sensor (Z) 63, and forms a communication format as data including a time change of acceleration. Is generated and output to the communication unit 65.

  The communication unit 65 performs a process of transmitting the packet data received from the acceleration measurement unit 66 to the calculation device 70. The transmission here is more preferably, for example, wireless communication using radio waves or infrared rays, but may be wired communication.

  The power supply unit 67 can be composed of a primary battery or a secondary battery. The power supply unit 67 supplies power to the control unit 64 and the communication unit 65.

4.3. Calculation Device The calculation device 70 includes a processing unit 75 and a display unit 76 that displays information such as the calculated wind speed. The calculation device 70 has a function of calculating the wind speed based on the acceleration data detected by the falling body 60 and displaying it on the display unit 76. However, the calculation device 70 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added.

  The processing unit 75 includes a distance calculation unit 71, a wind speed calculation unit 72, a table storage unit 73, and a display processing unit 74. The processing unit 75 performs a calculation process on the acceleration data received from the falling body 60 to obtain the wind speed and displays (notifies) it on the display unit 76.

  The distance calculation unit 71 obtains the flight distance L and the drop height h based on the time change of acceleration measured by the acceleration sensor (X) 61, the acceleration sensor (Y) 62, and the acceleration sensor (Z) 63.

  The wind speed calculation unit 72 stores in the table storage unit 73 the flying distance L obtained by the distance calculation unit 71 indicating how much the falling body 60 has been flown and the vertical drop height h of the falling body 60. The wind speed v can be obtained by collating with the current wind speed calculation table 77.

  The table storage unit 73 stores a wind speed calculation table 77. The wind speed calculation table 77 considers the shape and mass of the falling body 60 (housing) or air resistance, and relates to how much the falling body 60 is caused to flow by the wind speed, the flying distance L, the falling height h, and the wind speed v. It is a table which shows the correlation which used as a parameter.

  The display processing unit 74 can generate display data for displaying the wind speed v obtained by the wind speed calculation unit 72 on the display unit 76 (digital display) and output the display data to the display unit 76. Note that the wind speed v can be indicated by using, for example, a plurality of LEDs (light emitting diodes) instead of the image display, and changing the number of lighting and brightness. In this case, the display processing unit 74 can generate instruction data related to the number and brightness of LEDs indicating the wind speed v and output the instruction data to the display unit 76.

  The display unit 76 displays the wind speed v obtained by the wind speed calculation unit 72 as characters, graphs, or other images. The display unit 76 is, for example, a CRT (Cathode Ray Tube), an LCD (liquid crystal display), a touch panel type display, or the like. In addition, the display part 76 can be set as the method of alerting | reporting by changing the lighting number, brightness, etc. of LED (light emitting diode), for example instead of the display method displayed as an image.

  The display unit 76 can be provided on the falling body 60 without being provided on the calculation device 70. In this case, in the fallen body 60, it can complete from the detection of an acceleration to a display, and can improve the convenience more.

4.4. Wind Speed Measurement Method Next, a motion analysis method according to the present embodiment will be described with reference to FIGS. In the following description, the symbols used for the configuration of the wind speed measuring apparatus 200 described above are used.

  In the wind speed measuring method of this embodiment, as shown in the schematic diagram of FIG. 14, the position where the falling body 60 is separated from the user 2 is the origin O, the vertical direction is perpendicular to the Z direction, and the vertical direction (Z direction). The biaxial direction is defined as an X direction and a Y direction. Note that the height from the origin O to the ground on which the fallen body 60 lands is assumed to be the fall height h. In addition, it is assumed that the wind at this time is blowing as a crosswind having a wind speed v in a positive direction (horizontal direction) along the XY plane. In this case, the falling body 60 is swept away by the crosswind at the wind speed v and lands on the ground at a flight distance L in the horizontal direction from the origin O (shown as a falling body 60b in FIG. 14). In such a state, the wind speed v is measured (estimated) when the falling body 60 is separated from the user 2 at the initial speed of 0 (zero).

  As shown in the flowchart of FIG. 13, in the procedure of the wind speed measuring method of the present embodiment, first, the user 2 drops the falling body 60 away from the hand (step S201). The falling object 60 is set with the elapsed time t = 0 (step S202), and the built-in acceleration sensor (X) 61, acceleration sensor (Y) 62, and acceleration sensor (Z) 63 are used in the X and Y directions. , And the acceleration in the Z direction are measured (step S203).

In this procedure, it is assumed that the falling body 60 does not rotate but lands on the ground while being separated from the user 2. The accelerations in the X, Y, and Z directions are ax (t), ay (t), and az (t), respectively, as a function of time, and ax (t) and ay in the X and Y directions. (T) occurs between t = 0 and the landing t = t ₁ , and becomes 0 (zero) when landing. Note that az (t) in the Z direction is the vertical direction and is substantially constant with the gravitational acceleration g. The acceleration measured in this way can be represented as a graph as shown in FIG.

In the graph of FIG. 15, the time when the falling body 60 is separated from the hand is 0 (zero), and the time when the falling body 60 is landed is t ₁ . At this time, assuming that the distance that the falling body 60 is flowed by the wind on the XY plane is the flying distance L and the distance that the falling body 60 is dropped is the dropping height h, the flying distance L is expressed by the following equation (7), As in (8), it is a double integration with respect to the acceleration time.

When the falling body 60 is landed, the acceleration in the X direction and the Y direction becomes 0 (zero). Does not become 0 (zero). Accordingly, as shown in FIG. 15, a predetermined acceleration that takes noise into account is set as the threshold value α, and the time point t = t ₁ when the accelerations in the X and Y directions cross the threshold value α is regarded as landing. ing.

  Therefore, in the procedure of this embodiment, it is determined whether ax (t) and ay (t) are larger than the threshold value α (step S205), and the landing of the falling object 60 is determined. Specifically, in step S205, ax (t) or ay (t)> threshold value α is determined. If ax (t) or ay (t) is greater than threshold value α (S205: Y), the elapsed time is set. It is set as t = t + Δt (step S207), and the process returns to step S203 where the acceleration is measured by the acceleration sensor (X) 61, the acceleration sensor (Y) 62, and the acceleration sensor (Z) 63. In step S205, ax (t) or ay (t)> threshold value α is determined, and when ax (t) or ay (t) is smaller than threshold value α (step S205: N), the following procedure is performed. The process proceeds to step S209 for distance calculation.

  In step S209, the flying distance L and the drop height h of the fallen body 60 are calculated by the above formulas (7) and (8). Based on the calculated flight distance L and fall height h, the wind speed v is calculated (step S211). The calculation (estimation) of the wind speed v can be performed as described below.

  How much the falling body 60 is caused to flow by the cross wind of the wind speed v takes into consideration the shape and mass of the falling body 60 (housing), air resistance, etc., the flight distance L, the fall height h, and the wind speed v. It is known that it can be calculated as These parameters are represented by a graph as shown in FIG. 16A. In the graph of FIG. 16A, the horizontal axis represents the flight distance L, and the vertical axis represents the vertical drop distance Z ′. In the graph shown in FIG. 16A, a curve indicating the correlation between the flight distance L and the vertical drop distance Z ′ is plotted for each wind speed v. Specifically, the graph of FIG. 16A shows curves of wind speed v = 5 m / s, wind speed v = 10 m / s, wind speed v = 15 m / s, wind speed v = 20 m / s,. This parameter has a further subdivided curve (not shown) for each wind speed v.

  Then, the flying distance L calculated in the case of dropping the falling body 60 and the vertical drop height h are collated with the respective curves of the parameters, and the flying distance L and the vertical drop height h are obtained. By searching for the corresponding curve, the wind speed v of the curve can be obtained as the wind speed v when the falling body 60 is dropped. FIG. 16B illustrates a case in which the curve corresponding to the flight distance L and the vertical drop height h is a curve of wind speed v = 10 m / s.

  The information on the wind speed v calculated (estimated) in step S211 is converted (generated) as image data by the display processing unit 74 and displayed as image information on the display unit 76 (step S213). In the wind speed measuring method of the present embodiment, a series of procedures is terminated in step S213 in which image data of the wind speed v is displayed on the display unit 76.

  According to the wind speed measuring apparatus 200 and the wind speed measuring method using the wind speed measuring apparatus 200 described above, the wind speed v at the current location where the user 2 is located can be obtained without using the anemometer 9 (see FIG. 1) installed at a fixed point. Can be measured. Further, since the wind speed measuring device 200 can realize a lightweight and compact configuration, it is not necessary to install a large scale and can be carried. Therefore, the wind speed v can be easily measured.

  2 ... user, 2a ... user's hand, 3 ... golf club, 3a ... head, 3s ... shaft, 4 ... golf ball, 8 ... GPS satellite as position information output unit, 9 ... anemometer as environmental information output unit, DESCRIPTION OF SYMBOLS 10 ... Sensor unit, 12 ... Acceleration sensor, 14 ... Angular velocity sensor, 16 ... Signal processing part, 18 ... Communication part, 20 ... Hitting direction teaching apparatus, 20b ... Portable apparatus, 21 ... Processing part, 22 ... Communication part, 23 ... Operation unit as input unit, 24: storage unit, 25: display unit as notification unit, 26 ... sound output unit as notification unit, 27 ... communication unit, 30 ... server, 31 ... hit position, 32 ... arrival of hit ball Target position 33 ... Target direction of hit ball, 34 ... Wind power information, 35 ... Launch direction of hit ball, 36 ... Map image, 40 ... Network, 41 ... Direction acquisition unit, 42 ... Environmental information acquisition unit, 43 ... Position information Acquisition unit 44 ... Map data acquisition unit 90 ... Environmental information output unit 200 ... Wind speed measuring device as environmental information output unit 210 ... Data acquisition unit 211 ... Swing analysis unit 212 ... Image data generation unit 213 ... Environmental information processing unit, 214 ... hitting direction processing unit, 215 ... map data processing unit, 216 ... display processing unit, 217 ... sound output processing unit, 230 ... ROM, 240 ... RAM, 250 ... non-volatile memory, 1000 ... hitting direction Teaching system.

Claims (12)

A target direction acquisition unit for acquiring the target direction of the hit ball;
An environmental information acquisition unit for acquiring environmental information;
A processing unit for obtaining a hit direction of the hit ball based on the target direction of the hit ball and the environmental information, and generating notification data of the hit direction;
An informing unit for informing the launch direction based on the informing data;
A ball striking direction teaching device. The hitting direction teaching device according to claim 1, wherein the notification unit includes a display unit and displays the launch direction on the display unit. The hitting direction teaching apparatus according to claim 1, further comprising an input unit that inputs a target direction of the hitting ball. The hitting direction teaching device according to any one of claims 1 to 3, wherein the environmental information is at least one of a wind speed and a wind direction. The hitting direction teaching device according to claim 4, wherein the display unit displays the launch direction and at least one of the wind speed and the wind direction. It has a map data acquisition unit that acquires map data,
The hitting direction teaching device according to claim 4, wherein the display unit displays the launch direction and a map image based on the map data. Determining the target direction of the hit ball;
Obtaining environmental information;
Obtaining the hit direction of the hit ball based on the target direction of the hit ball and the environmental information;
Generating notification data of the launch direction;
And a step of notifying the launch direction based on the notification data. The notification data is image data,
The hitting direction teaching method according to claim 7, wherein in the notifying step, the launch direction is displayed based on the image data. The environmental information is at least one of wind speed and wind direction,
The hitting direction teaching method according to claim 8, wherein in the notifying step, a launch direction and at least one of the wind speed and the wind direction are displayed. Including obtaining map data;
The hitting direction teaching method according to claim 9, wherein in the notifying step, a hitting direction of the hitting ball based on the image data and a map image based on the map data are displayed. A target direction acquisition unit that acquires a target direction of a hit ball, an environment information acquisition unit that acquires environment information, a position information acquisition unit that acquires position information, a target direction of the hit ball, and a hit direction based on the environment information A hitting direction teaching device comprising: a processing unit that determines a launch direction and generates notification data of the launch direction; and a notification unit that notifies the launch direction based on the notification data;
A position information output unit that outputs the position information of the hitting direction teaching device;
An environmental information output unit that detects environmental data and outputs the environmental data as the environmental information. The notification unit includes a display unit,
The hitting direction teaching system according to claim 11, wherein the display unit displays the launch direction, the position information, and the environment information.

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