JP2018175806A - Display program, display method and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clearly and accurately display a state of windsurfing during sailing. SOLUTION: Based on the position information by the GPS value of the windsurfing, the speed of the windsurfing at each position and the traveling direction of the windsurfing with respect to the wind direction at each position are calculated. Based on the calculated position information, the state of the mast sail of windsurfing is acquired from the 9-axis sensor. Based on the acquired speed, running direction, and condition, jibe, which is a turn around the leeward, and tacking, which is a turn around the leeward, are detected and the information is displayed. [Selection diagram] FIG. 26

Description

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

  In general, in a windsurfing moving body such as windsurfing, it is said that the quality of sailing is determined by the boat speed and the sailing angle (the angle formed by the direction of movement of the ship and the wind). In addition, a good sailing form for efficiently receiving wind is said to have a mast standing up and a stable sail. If the mast is swayed back and forth, left or right, or the pull in of the sail becomes weak, the flow rate of the wind flowing on the sail changes, the wind escapes and power is reduced, and as a result the speed decreases and pilot fatigue increases. To As training on a form to overcome the above and improve the maneuvering technology, we are repeating the work of shooting a movie on the camera from the land, reproducing the movie, and confirming the state of sailing conducted on the ocean.

  As related prior art, the acceleration data from the acceleration sensor, the GPS signal from the GPS receiver, etc. are stored in the storage device in association with the acquisition time, and when the acceleration data exceeds the reference value, the moving image data is bridged There is a technology that extracts the number, associates the installation position of the joint specified by the bridge number with the measurement position of the acceleration data, and displays the inspection screen for inspecting the road on the display of the notebook PC (for example, See Patent Document 1).

Unexamined-Japanese-Patent No. 2015-197804

  However, windsurfing practice is often performed on the sea far from land, and the conventional method has a problem that only limited images can be obtained with a camera or the like. In addition, considering the cost for practice, it is also required that the practicing individual independently confirms the form. Also, in the first place, it is a sport that deals with the invisible “wind”, and the optimal sailing form itself can not be defined at present.

  In one aspect, the present invention aims to support efficient maneuvering and traveling.

  In one embodiment, position information on the changing position of the moving body moving by wind force is obtained, and the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions are calculated. Based on the position information, state information on the state of the moving object is obtained, and a speed change around the wind, a jibe or wind around the wind based on the speed, the traveling direction, and the state. A display program, a display method and a display apparatus are provided which detect tacking which is a change of direction, and display information on the jive or the tacking.

  According to one aspect of the present invention, efficient maneuvering and traveling can be supported.

FIG. 1 is an explanatory view showing an example of a system configuration of a sailing training support system including a display device according to the embodiment. FIG. 2 is an explanatory view showing an example of the hardware configuration of the sensor. FIG. 3 is a flowchart showing an example of the recording process procedure of the sensor. FIG. 4 is an explanatory view showing an example of the format of the GPS value. FIG. 5 is an explanatory view showing an example of the format of the 9-axis sensor. FIG. 6 is a flowchart illustrating an example of an acquisition processing procedure of data of the 9-axis sensor. FIG. 7 is an explanatory view showing an example of the format of data acquired by the sensor. FIG. 8 is a flowchart showing an example of a data registration process procedure to the database. FIG. 9 is an explanatory diagram of an example of the hardware configuration of the display device according to the embodiment. FIG. 10 is an explanatory diagram of an example of a functional configuration of the display device according to the embodiment. FIG. 11 is a flowchart of an example of a data display process procedure. FIG. 12 is an explanatory view showing contents of classification of traveling data. FIG. 13 is a flowchart showing an example of a calculation process procedure of angle data. FIG. 14 is an explanatory view showing the contents of calculation of the pitch angle. FIG. 15 is an explanatory drawing showing the contents of the calculation of the roll angle. FIG. 16 is an explanatory view showing the contents of calculation of the yaw angle. FIG. 17 is an explanatory view (1) of the contents of data display. FIG. 18 is an explanatory view (part 2) of the content of the data display. FIG. 19 is an explanatory view (part 3) of the content of the data display. FIG. 20 is an explanatory view (part four) of the contents of the data display. FIG. 21 is an explanatory view (part 5) of the content of the data display. FIG. 22 is an explanatory diagram (part 6) of the content of the data display. FIG. 23 is an explanatory view (7) of the contents of the data display. FIG. 24 is a flowchart showing an example of the jibe recognition processing procedure. FIG. 25 is an explanatory view (part 8) of the contents of the data display. FIG. 26 is an explanatory diagram (part 9) of the content of the data display.

  Hereinafter, embodiments of a display program, a display method, and a display device according to the present invention will be described in detail with reference to the drawings.

Embodiment
(System configuration example of sailing training support system 100)
FIG. 1 is an explanatory view showing an example of a system configuration of a sailing training support system including a display device according to the embodiment. In FIG. 1, the sailing training support system 100 includes a sensor 101, a database 102, and a display device 103.

  FIG. 1 shows a windsurf 110 as an example of a moving object moved by wind power to be subjected to sailing training. In the windsurf 110, the operator operates a dedicated tool having a rig unit attached to the board unit 115 to move it on the water surface (hereinafter, this dedicated tool is referred to as "mobile 110". Or it may be called "windsurfing 110".

  The rig portion includes a mast 111, a joint 112, a sail 113, and a boom 114. The rig portion is attached to the board portion 115 by the joint 112. Further, the board portion 115 is provided with a dagger board 116 and fins 117.

  The sensor 101 is attached to the mast 111 slightly below the boom 114. The sensor 101 also includes a display unit 104. Details of the details including the attachment of the sensor 101 to the mast 111 will be described later with reference to FIG.

  In the sailing training support system 100, the sensor 101 and the database 102 are not directly connected, and for example, store data acquired by the sensor 101 via a recording medium such as an SD card (not shown) in the database 102. Alternatively, the sensor 101 and the database 102 may be connected by wireless communication. Also, the sensor 101 and the database 102 may be configured to be connected via a wired or wireless network (not shown).

  Further, in the sailing training support system 100, the database 102 and the display device 103 are connected via a wired or wireless network (not shown). The network may be, for example, the Internet, a mobile communication network, a local area network (LAN), a wide area network (WAN), or the like. Therefore, the database 102 may be realized by a cloud server (not shown). Further, the database 102 may be provided in the display device 103.

  The sensor 101 acquires positioning information on the position of the windsurf 110 and information on the state of the sail 113. The database 102 stores the information acquired by the sensor 101. The display device 103 displays various information for supporting sailing training based on the information stored in the database 102.

  The display device 103 is a computer used by a user who uses the sailing training support system 100. The display device 103 is, for example, a notebook PC, a desktop PC, a tablet PC, a smartphone, or the like.

(Sensor hardware configuration example)
FIG. 2 is an explanatory view showing an example of the hardware configuration of the sensor. In FIG. 2, the sensor 101 is configured to include a base 201 and a nine-axis sensor 202 (specifically, a nine-axis inertial measurement unit). Further, the sensor 101 is connected to the display unit 104.

  The nine-axis sensor 202 is provided on the base 201 attached to the mast 111 so as to be perpendicular to the water surface and parallel to the traveling direction. In addition, the base 201 is provided with a GPS receiving circuit. The sensor 101 simultaneously records the GPS (data indicating the traveling state: speed, traveling direction) and the 9-axis sensor 202 (data indicating the riding method: three-dimensional sail operation). The sail operation (front and rear, left and right tilting of the mast 111, rotation of the mast 111) is recorded by detecting rotation angles of the 9-axis sensor 202 in the X, Y and Z directions.

  FIG. 3 is a flowchart showing an example of the recording process procedure of the sensor. In the flowchart of FIG. 3, the sensor 101 acquires a GPS value (GPRMC) indicating the current position (step S301). Then, the ground speed, the traveling direction (true azimuth), the latitude, and the longitude are acquired as log data from the GPS values acquired in step S301 (step S302).

  Simultaneously with the acquisition of the GPS value in step S301, the value of the 9-axis sensor 202 is acquired (step S303). Specifically, measurement values obtained by the acceleration sensor, the gyro sensor, and the geomagnetic sensor are acquired as log data.

  The log data acquired in step S302 and the log data acquired in step S303 are stored in a predetermined storage area (log data database 300) provided in the sensor 101. These series of processes are repeated continuously during the measurement.

  FIG. 4 is an explanatory view showing an example of the format of the GPS value. In the item 7 of the format shown in FIG. 4, the ground speed, the true azimuth in item 8, the latitude in items 3 and 4, and the longitude in items 5 and 6 are shown.

  FIG. 5 is an explanatory view showing an example of the format of the 9-axis sensor. In FIG. 5, Ax, Ay, Az respectively indicate an acceleration sensor (X axis), an acceleration sensor (Y axis), and an acceleration sensor (Z axis). Further, Gx, Gy, and Gz respectively indicate a gyroscope (X axis), a gyroscope (Y axis), and a gyroscope (Z axis). Mx, My and Mz respectively indicate a geomagnetic sensor (X axis), a geomagnetic sensor (Y axis), and a geomagnetic sensor (Z axis).

  FIG. 6 is a flowchart illustrating an example of an acquisition processing procedure of data of the 9-axis sensor. In the flowchart of FIG. 6, the nine-axis sensor 202 first updates the sensor value (step S601), and then updates the time stamp (step S602). Then, each sensor value is acquired (step S603), and the acquired sensor value is recorded (step S604). Thereafter, the process returns to step S601, and steps S601 to S604 are repeatedly executed.

  Thus, by updating the time stamp in step S602, the difference from the previous time stamp can be obtained as the DT (sensor value acquisition interval).

  FIG. 7 is an explanatory view showing an example of the format of data acquired by the sensor. In FIG. 7, the schema 701 of the schema name: Users records the User ID of the user. Then, the user name is recorded. Schema name: The schema 702 of Files is recorded with a User ID as a foreign key (FK), and Date (date) and a serial number (used when there are multiple files in one day) are recorded. That is, the file is managed by date or date and its serial number.

  Schema name: The practice ID is recorded in the schema 703 of Practices, and the user ID, Date, and the serial number are recorded as the foreign key (FK). Then, the type of windsurfing tool 110 is recorded, such as No (number attached to tool), sail 113, mast 111, boom 114, fin 117, downhole, outhaul, joint position, boom height, and the like.

  Schema Name: The Legs schema is recorded with Leg ID 704, and Practice ID is stored as a foreign key (FK). Also, the serial number of the leg is recorded.

  Schema name: GPSes are recorded in a schema 705 of GPSes, and Leg IDs are recorded as foreign keys (FK). Then, the GPS values shown in FIG. 4 such as date, time, status, longitude, north / south latitude, longitude, east / west longitude, speed, movement direction, etc. are recorded. The schema 705 is recorded approximately every one second.

  Schema name: The Motions schema 706 stores a GPS ID as a foreign key (FK). Then, the difference time (ΔT), acceleration (X axis, Y axis, Z axis), gyro (X axis, Y axis, Z axis), geomagnetism (X axis, Y axis, Z axis), etc. The values of the indicated 9-axis sensor 202 are stored. The schema 706 is recorded at intervals of approximately 0.01 to 0.02 seconds.

  FIG. 8 is a flowchart showing an example of a data registration process procedure to the database. In the flowchart of FIG. 8, first, data for one day (one time) (data from pressing of recording start button to pressing of recording end button) is uploaded for each file from the log data 300 shown in FIG. 3.

  Then, practice data is extracted from the file (step S801). Specifically, data for one day (one time) is divided into data from one departure to return, and each of them excluding "land waiting time" is taken as "1 Practice". Among the GPS data, the case where the "moving speed" is 0.5 km / h or less and the speed continues for 10 seconds or more is referred to as "land waiting time".

  Next, Leg (leg) data is extracted from the practice data (step S802). Specifically, the section is divided from the change of direction to the next change of direction, and when the "moving direction" of the GPS data changes by a certain amount or more, up to 5 seconds after the change is recognized as "1 Leg".

  Then, each of the extracted Practice data and Leg data is stored (saved) in the database 102 (step S 803), and the series of processing is ended.

(Hardware Configuration Example of Display Device 103)
FIG. 9 is a block diagram showing an example of the hardware configuration of the display device according to the embodiment. In FIG. 9, the display device 103 includes a CPU 901, a memory 902, an I / F 903, a display 904, a camera 905, and an input device 906. Also, each component is connected by a bus 900.

  Here, the CPU 901 is in charge of overall control of the display device 103. The memory 902 includes, for example, a ROM, a RAM, and a flash ROM. Specifically, for example, a flash ROM or a ROM stores various programs, and a RAM is used as a work area of the CPU 901. The program stored in the memory 902 is loaded into the CPU 901 to cause the CPU 901 to execute coded processing.

  The I / F 903 is connected to a network 950 such as the Internet through a communication line, and is connected to the database 102 and other devices including a server (not shown) via the network 950. The I / F 903 controls the interface between the network 950 and the inside of the own apparatus, and controls input / output of data from other apparatuses.

  The display 904 displays data such as a document, an image, function information, and the like, as well as a cursor, an icon or a tool box. The display 904 can employ, for example, a liquid crystal display, an organic EL (Electroluminescence) display, or the like. The display 904 may also be a head mounted display. This makes it possible to reproduce data by virtual reality.

  The camera 905 is a device for capturing a control image or a moving image. It can be used to take a picture of an item.

  The input device 906 has keys for inputting characters, numbers, various instructions, etc., and performs data input. The input device 906 may be a keyboard, a pointing device, or the like, or may be a touch panel input pad, a numeric keypad, or the like.

  The display device 103 may include various sensors, an HDD (Hard Disk Drive), an SSD, and the like in addition to the above-described components.

(Functional Configuration of Display Device 103)
FIG. 10 is a block diagram showing an example of a functional configuration of the display device according to the embodiment. In FIG. 10, the display device 103 includes an acquisition unit 1001, a data processing unit 1002, and a display control unit 1003 in addition to the display screen 1000.

  Specifically, the display screen 1000 can realize its function, for example, by the display 904 shown in FIG.

  The acquisition unit 1001 receives input of position information on the changing position of the mobile object 110 moving by wind power, specifically, the above-described GPS value. Further, the acquisition unit 1001 acquires state information on the state of the moving object at each position, specifically, a detection value by the 9-axis sensor 202.

  Specifically, for example, the acquiring unit 1001 causes the CPU 901 to execute a program stored in a storage device such as the memory 902 illustrated in FIG. 9 or the function thereof by the I / F 903, the input device 906, or the like. Can be realized.

  The data processing unit 1002 calculates the velocity of the moving object 110 at each position based on the position information. In addition, the data processing unit 1002 calculates the traveling direction (for example, a beam, close hold, or quarter) of the moving body 110 with respect to the wind direction at each position based on the position information.

  Further, the data processing unit 1002 detects a jibe which is a direction change around windward, based on the speed, the traveling direction, and the state related to the state information. Further, the data processing unit 1002 may detect tacking, which is a direction change around windward, similarly to the gybe, based on the speed, the traveling direction, and the state related to the state information.

  Also, the data processing unit 1002 detects the turn entry point of the jibe based on the speed. Specifically, for example, after jib detection, a point in time at which the speed stall starts is detected, and this point in time is determined to be a turn entry point. The data processing unit 1002 may make the same determination as in the case of gybe also in the case of tacking.

  Also, the data processing unit 1002 detects the turn escape point of the jibe based on the speed. Specifically, for example, during jibe, the time point of the lowest speed is detected, and this time point is determined as the turn exit point. The data processing unit 1002 may make the same determination as in the case of gybe also in the case of tacking.

  In addition, the data processing unit 1002 detects the sail return of the jibe based on the state related to the state information. Specifically, for example, a point in time at which the yaw angle of the state information changes by 90 ° or more is detected, and the point in time is determined as a sail return point.

  Specifically, the data processing unit 1002 can realize the function by causing the CPU 901 to execute a program stored in a storage device such as the memory 902 illustrated in FIG. 9, for example.

  The display control unit 1003 displays temporal changes in speed by a graph. Further, the display control unit 1003 may display temporal changes in the velocity and the traveling direction by a graph. Further, the display control unit 1003 may display at least one of the maximum speed and the average speed among the speeds by a graph. The graph may be, for example, a graph in which the time from the start time and the speed at each time in the time are two parameters.

  In addition, the display control unit 1003 displays a first mark indicating an arbitrary position of the graph, and the movement of the mobile object 110 on the map in which the time is synchronized with the position of the graph in which the first mark is displayed. A second mark may be displayed at the position of the trajectory.

  In addition, the display control unit 1003 may display state information in which the time is synchronized with the position of the graph in which the first mark is displayed. The state information may be information on the tilt of the mast 111 of the mobile unit 110. Further, the state information may be information on the rotation angle of the sail 113 of the moving body 110.

  The display control unit 1003 may automatically move the first mark along the time axis of the graph.

  In addition, the display control unit 1003 displays information related to the jibe. Then, the entry point of the turn is displayed, and information on the amount of pulling in of the sail at the entry point of the turn is displayed. It also displays the turn exit point, and displays information about the amount of sail withdrawals for the turn exit point. Also, the sail return point is displayed, and information on the amount of pull in the sail return point is displayed. The display control unit 1003 may display the same information as that of the jibe also for tacking.

  Specifically, the display control unit 1003 can realize the function by causing the CPU 901 to execute a program stored in a storage device such as the memory 902 illustrated in FIG. 9, for example.

  As described above, the control unit of the display device 103 acquires position information on the changing position of the moving object 110 moved by wind power, and acquires the state information on the state of the moving object 110 based on the position information. The velocity of the moving object 110 at each position and the traveling direction of the moving object 110 with respect to the wind direction at each position are calculated, and the calculated velocity, the calculated traveling direction, and the obtained state are obtained. The data processing unit 1002 detects a jibe which is a turn around windward or a tacking that is a turn around windward, and a display control unit 1003 which displays information about the jibe or tacking.

  FIG. 11 is a flowchart of an example of a data display process procedure. In the flowchart of FIG. 11, the display device 103 first loads data from the database 102 (step S1101). Next, the wind direction (wind axis) is calculated based on the loaded data (step S1102).

  Next, classification of travel data is performed (step S1103). The straight line orthogonal to the wind direction is 0 degrees, and the GPS data is classified into three based on the "moving direction" based on the judgment reference shown in FIG.

  Next, statistical data is created (step S1104). Perform data statistical processing to display polar curves, load and integrate all GPS data for the same user. Then, [maximum speed, direction] [various VMG] is calculated. VMG (Velocity Made Good) is an effective speed and means the speed in the direction in which you want to go (how far in the direction you want to go). It also performs jibe recognition processing. Jive is a turn around windward.

  Thereafter, data display processing is performed (step S1105). This completes the series of processing.

  FIG. 12 is an explanatory view showing contents of classification of traveling data. In FIG. 12, the track is ± 10 degrees “Abeam”, that is, traveling in the direction perpendicular to the wind, and the track is 10 degrees to 90 degrees is “Close hold”, that is, traveling in the windward direction. A course of -10 degrees to -90 degrees is "quarterly", that is, traveling in the downwind direction.

  In addition, a case of going to the right with respect to the wind direction (wind axis) is referred to as "port tack", and a case of going to the left is classified as "starboard tack" into two. FIG. 12 shows the case of “port tack”, and in the case of “starboard tack”, the left and right are reversed, and the case is similarly classified into three.

  FIG. 13 is a flowchart showing an example of a calculation process procedure of angle data. In the flowchart of FIG. 13, the display device 103 first loads data from the database 102 (step S1301). Next, of the loaded data, the GPS value for the target leg is acquired (step S1302). Then, based on the acquired GPS value, the ground speed, the heading direction, the latitude, and the longitude are acquired (step S1303).

  Next, classification of traveling data is performed (step S1304). Specifically, color classification is performed in accordance with the traveling direction based on the classification of travel data in step S1103 of the flowchart of FIG.

  Further, time-series data is stored in the internal array as reproduction data (step S1305). Then, initial display processing is performed (step S1306). Specifically, processing of connecting a plot of GPS point cloud data and a continuous point on a map with a line is performed.

  Also, the value of the 9-axis sensor 202 is acquired in accordance with the GPS value for the target leg acquired in step S1302 (step S1307). Among the acquired values of the nine-axis sensor 202, a pitch angle which is an angle around the X axis by the acceleration sensor is calculated (step S1308).

  Then, among the acquired values of the nine-axis sensor 202, a gyroscope value by a gyro sensor is added, and an angle is estimated by filter processing (step S1309). This angle is taken as the pitch angle. As the filter processing, for example, processing such as a complementary filter, a linear Kalman filter, and an Unscented Kalman filter is performed.

  FIG. 14 is an explanatory view showing the contents of calculation of the pitch angle. FIG. 14 shows a side view of the windsurf 110 (Side of View). In FIG. 14, the pitch angle (Euler angle) is 0 ° when the mast 111 is perpendicular to the board portion 115, from which the mast 111 is turned forward, that is, to the nose side. The inclination is positive (0 ° to 90 °), and the inclination to the tail side is negative (-1 ° to -90 °) in a state where the mast 111 is turned backward. This range is a range in which the pitch angle can be calculated.

  The pitch angle can be calculated by equation (1).

Pitch angle = ATAN ((ax) / SQRT (ay * ay + az * az)) .. Formula (1)
ax: x-axis accelerometer value ay: y-axis accelerometer value az: z-axis accelerometer value

  Further, a roll angle which is an angle around the Y axis by the acceleration sensor among the values of the 9-axis sensor 202 acquired in step S1307 is calculated (step S1311). Then, a gyroscope value by the gyro sensor among the acquired values of the nine-axis sensor 202 is added, and an angle is estimated by filter processing (step S1312). This angle is taken as the roll angle.

  As the filtering process, for example, a process such as a complementary filter, a linear Kalman filter, or an Unscented Kalman filter is performed as in the filtering process used in the estimation of the roll angle.

  FIG. 15 is an explanatory drawing showing the contents of the calculation of the roll angle. FIG. 15 shows a view (Front of View) of the windsurf 110 as viewed from the front (nose side). In FIG. 15, the roll angle (Euler angle) is 0 ° when the mast 111 is perpendicular to the board portion 115, from which the mast 111 is tilted to the left in the drawing, ie, The inclination of the board portion 115 to the right is positive (0 ° to 90 °), and in the state of being tilted to the right in the drawing, that is, the inclination to the left of the board 115 is negative (-1 ° to -90 °) is there. This range is the range in which the roll angle can be calculated.

  The roll angle can be calculated by equation (2).

  Roll angle = ATAN ((ay) / SQRT (ax * ax + az * az)) .. Formula (2)

  Further, a yaw angle which is an angle around the Z axis by the geomagnetic sensor among the values of the 9-axis sensor 202 acquired in step S1307 is calculated (step S1313).

  FIG. 16 is an explanatory view showing the contents of calculation of the yaw angle. FIG. 16 shows a top view of the windsurf 110 from the top. In FIG. 16, the yaw angle (Euler angle) is a rotation angle of the sail 113 based on the magnetic north centering on the mast 111. The position where the mast 111 side of the sail 113 faces the magnetic north, that is, the position where the boom end side faces the opposite direction to the magnetic north is 0 °, and 0 ° to 359 ° can be calculated counterclockwise.

  Further, since the traveling direction can be calculated from GPS, the rotation angle of the sail 113 can also be calculated by gyro correction using low-pass filter processing based on the value of the geomagnetic sensor.

  The yaw angle (Yaw) can be calculated by Equations (3) to (5).

magX: Geomagnetic sensor value on x axis magY: Geomagnetic sensor value on y axis Yaw = atan2 (magX, magY);
if (Yaw <0) Yaw + = 2 * PI;
if (Yaw> 2 * PI) Yaw− = 2 * PI;
Yaw = Yaw * 180 / M_PI;
// Adjust the magnetic declination in the case of west-biased (Japan) Yaw = Yaw + 6.6; // 6.6 declination
if (Yaw> 360.0) Yaw = Yaw-360.0;

  In this way, the time series data is stored in the internal array as reproduction data (step S1310), as the reproduced data, with the pitch angle estimated in step S1309, the roll angle estimated in step S1312, and the yaw angle calculated in step S1313. End the process.

(Contents of data display)
17 to 23 are explanatory diagrams showing the contents of data display. FIG. 17 shows an example of the summary display, FIGS. 18 and 19 show an example of the map display, and FIG. 20 shows an example of the polar diagram display.

(Summary display)
FIG. 17 shows the contents of the summary. In FIG. 17, “Active Days” 1701, “Total Distance” 1702, and “Your Best Top” 1703 are displayed in the upper column of the display screen.

  “Active Days” 1701 indicates the cumulative number of days of sailing (practice) performed by the user, and indicates that the number of days is “262 (days)”. Also, “Total Distance” 1702 indicates the cumulative distance that the user sails (on the windsurf 110), and indicates that the distance is “5633 (km)”. In addition, "Your Best Top" 1703 indicates the highest speed during the cumulative days (distance) in which the user sails, and the speed is "62.23 (km / h)" (speed 62.23 km / h). It shows that it is).

  In FIG. 17, “Time” 1704, “Distance” 1705, and “Wind Deletion” 1706 are displayed in the main column of the display screen from the upper left side.

  “Time” 1704 indicates the time for one day, that is, the time from the pressing of the sensor recording start button to the pressing of the recording end button, and the time is “2: 23: 11” (2 hours 23 minutes 11 seconds) It shows that it is.

  “Distance” 1705 indicates the total distance traveled by the user for one day, that is, the distance from pressing the sensor recording start button to pressing the recording end button, and the distance is “23.54 (km ) Is shown. The total distance can use a value calculated from GPS values.

  In addition, “Wind Derection” 1706 indicates the wind direction predicted from the traveling data, and indicates “SW” (southwest wind) and an arrow indicating the upper right direction indicating southwest. The wind direction can use what was calculated in the step of step S1102 of the flowchart of FIG.

  Thus, the upper row shows objective information on the sailing history that is not directly related to sailing technology.

  Further, in FIG. 17, “Top Speed” 1707, “Avg Speed” 1708, and “Best Jibe” 1709 are displayed from the lower left of the main column of the display screen. "Top Speed" 1707 indicates the maximum speed recorded in data for one day, and indicates that the speed is "49.21 (km / h)" (49.21 km / hr). “Avg Speed” 1708 shows the average speed for one day's worth of data (excluding land standby time), and the speed is “32.21 (km / h)” (32.21 km / hr) It shows.

  In addition, “Best Jibe” 1709 shows the maximum escape speed of the jibe recorded in the data for one day, and the speed is “18.36 (km / h)” (18.36 km / h). It shows.

  Further, in FIG. 17, “Legs” 1710, “Port Jibe” 1711, and “Starbord Jibe” 1712 are displayed in the lower column below the main column of the display screen.

  “Legs” 1710 indicates the number (number of times) of performed Legs in data for one day, and indicates that the number is “367 (books)”. Also, “Port Jibe” 1711 indicates the number of gybes from the port tack (the wind is the way of traveling by receiving the wind from the left side of the board portion 115 and the left foot comes forward), and the number is “124 (Time) ”is shown. In addition, “Starbord Jibe” 1712 indicates the number of gybes from Starboard Tack (in contrast to port tack, it is a running method that receives wind from the right side of the board 115 and travels forward and the right foot comes forward). It indicates that the number of times is "151 (times)".

  In the main field of the display screen, six items are displayed surrounded by circles. Since each item is an analog value, it is possible to intuitively grasp an image of such an analog value. On the other hand, in the lower part of the display screen, three items are displayed in a rectangular shape. Since these items are digital values, such digital value images can be intuitively displayed. Can be made to understand. As described above, by changing the design of the item to be displayed, the user can grasp data more intuitively and sensibly.

  In the left column of the display screen, a list 1721 of summaries of data for one day is displayed for each day. In this list 1721, the date (Date) and the total distance traveled by the user for one day (Distance) are shown in order of date. This list 1721 can be sorted and sorted in ascending order or descending order of date (Date), or in ascending order or descending order of total distance (Distance). One day's worth of data can be displayed by selecting a summary (date) desired to be displayed.

  In FIG. 17, it is displayed in the descending order of the date (Date), and the top “2017-03-01 23.54 km” is selected and highlighted, “Time” 1704. It can be seen that the time "2:23:11" of the "distance" matches the distance "23.54 (km)" of the "Distance" 1705.

  Further, below the summary list 1721 of data for one day, a list 1722 of a plurality of summaries of practice in data for one day selected in the list 1721 is displayed. The list 1722 displays a serial number number (“No.”) for each practice, a practice start time (“Start”), and a practice end time (“End”). By selecting a summary (practice) desired to be displayed, data of the practice can be displayed.

  In FIG. 17, the summary (Practice) is not selected and the display is not changed. When one of the summaries (Practice) is selected, it is highlighted, and along with that, the summary data of the items 1704 to 1712 in the main column and the lower column are narrowed and displayed.

  Further, in FIG. 17, on the upper side of the main column of the display screen, screen switching buttons of “Summary” 1751, “Map” 1752, and “Polar Diagram” 1753 are provided. “Summary” 1751 is a screen of the summary shown in FIG. 17, “Map” 1752 is a display screen using the maps shown in FIGS. 18 and 19, and “Polar Diagram” 1753 is a screen shown in FIG. It is a display screen using the polar diagram shown.

  In FIG. 17, since the summary is displayed, the display form (including the color) of “Summary” 1751 is different from “Map” 1752 and “Polar Diagram” 1753. Then, by clicking on the position where “Map” 1752 and “Polar Diagram” 1753 are displayed with a pointing device etc. or touching it with a finger etc, the display screen shown in FIG. 18 and FIG. 19 or FIG. The display screen shown can be easily switched.

(Map display)
FIG. 18 shows the contents of the map. FIG. 18 shows a speed display section 1802 in which a change in speed is indicated by a line graph 1820 in time series on the lower side of the map section 1801.

  The "Active Days" 1701, the "Total Distance" 1702, and the "Your Best Top" 1703 in the upper column of the display screen display the same content as in FIG. A list 1721 of summaries of data for one day in the left column of the display screen, and a list 1722 of summaries of a plurality of practices in data for one day are also similar to those shown in FIG.

  The screen switching buttons “Summary” 1751, “Map” 1752, and “Polar Diagram” 1753 on the upper side of the main column of the display screen are similar to those shown in FIG. In FIG. 18, since the map is displayed, the display form (color) of “Map” 1752 is different from “Summary” 1751 and “Polar Diagram” 1753.

  In FIG. 18, the map unit 1801 displays a trajectory 1811 of movement (sailing) of the windsurf 110. In addition, an arrow 1812 indicating the wind direction is displayed.

  In FIG. 18, the speed display unit 1802 displays a line graph 1820 indicating the speed with the horizontal axis (X axis) as time and the vertical axis (Y axis) as speed. The vertical axis (Y axis) has two lines, a line (Top Speed) 1821 parallel to the horizontal axis (X axis) and a line (Average Speed) 1822. A line (Top Speed) 1821 is a line indicating the maximum speed. A line (Average Speed) 1822 is a line indicating an average speed. Then, the maximum speed is displayed on “Top Speed” 1803 and the average speed is displayed on “Avg Speed” 1804.

  The horizontal axis (X axis) is a line 1823 parallel to the vertical axis (Y axis) indicating the start time of display on the map and a line 1824 indicating the end time of display on the map There is. Only the section of these two lines 1823 and 1824 is displayed as the locus of the map unit 1801.

  The line graph 1820 is classified into nine regions A to I. Region A is prior to line 1823 and is therefore not displayed on the map. Therefore, they are not color-coded or are indicated by colors (for example, gray or the like) to distinguish them from other color-coded areas.

  Region B, region D, region F and region H indicate a beam. The area of the abeam may, for example, be colored red. Regions C and G indicate quarters. The quarterly area may be colored, for example, in blue. Region E indicates a close hold. The closed hold area may be colored, for example, yellow.

  In addition, since the area I is after the line 1824, it is not displayed as the locus 1811 of the map unit 1801. Therefore, like region A, it is not color-coded or, for example, it is indicated by a color such as gray.

  Thus, each area B to H of the line graph 1820 of the speed display unit 1802 is the area B: "A beam (red)" → the area C: "quarterly (blue)" → the area D: "A beam (red)" → Area E: "Close hold (yellow)" → Area F: "Abeam (Red)" → Area G: "Quarterly (blue)" → Area H: "Abeam (Red)" It can be displayed.

  Then, the trajectory 1811 of the movement (navigation) of the windsurf 110 is colored and displayed in each color colored in the speed display unit 1802. As shown in FIG. 18, in the locus 1811, the section B is colored in red, the section C in blue, the section D in red, the section E in yellow, the section F in red, the section G in blue and the section H in red, The color is the same as that of each area B to H of the line graph 1820 of the speed display unit 1802. Thereby, the sailing type can be displayed separately in color.

  By configuring in this manner, the visibility of data can be improved. That is, the trajectory 1811 of the map unit 1801 and the line graph 1820 of the velocity display unit 1802 are synchronized, and the velocity at each position on the trajectory 1811 can be grasped easily and intuitively, and what kind of sailing is performed You will be able to instantly determine whether or not. Therefore, it is possible to clearly understand what kind of travel was being performed and to determine what kind of sailing (close hold, a beam, quarterly, etc.) was performed.

  FIG. 19 displays the map unit 1901 and the speed display unit 1902 as in FIG. As in the case of FIG. 18, the speed display unit 1902 displays a line graph 1920 indicating a change in speed with the horizontal axis (X axis) as time and the vertical axis (Y axis) as speed. The vertical axis (Y axis) has two lines, a line (High Level) 1921 parallel to the horizontal axis (X axis), and a line (Low Level) 1922.

  A line (High Level) 1921 is a line indicating the upper limit speed. Also, a line (Low Level) 1922 is a line indicating the lower limit speed. The upper limit speed “41.55 (km / h)” is displayed on the “High Level” 1903 and the lower limit speed “25. 21 (km / h)” is displayed on the “Low Level” 1904.

  The line graph 1920 is divided into three areas (area 1923, area 1924, and area 1925) by a line (High Level) 1921 and a line (Low Level) 1922. Areas 1923 faster than the upper limit speed are shown in red, areas below the upper limit speed, areas above the lower limit speed are shown in blue, and areas slower than the lower limit speed 1925 are shown in gray.

  Further, in FIG. 19, sections A to G are set based on the intersections of the line graph 1920 and the lines 1921 and 1922. Specifically, sections A and G are the area 1925, sections B, D and F are the area 1924, and sections C and E are the area 1923.

  In addition, the trajectory 1911 of the map unit 1901 is color-coded in synchronization with the color-coding of the speed display unit 1902 for each of the sections A to G. That is, "section A: gray" → "section B: blue" → "section C: red" → "section D: blue" → "section E: red" → "section F: blue" → "section G: gray" Color with.

  With this configuration, as in FIG. 18, the trajectory 1911 of the map unit 1901 and the line graph 1920 of the velocity display unit 1902 are synchronized, and the velocity at each position on the trajectory 1911 can be grasped easily and intuitively. can do.

(Polar diagram display)
FIG. 20 is an explanatory drawing showing the contents of the polar diagram. In FIG. 20, a polar diagram is displayed at the center with respect to the wind direction (WIND) indicated by an arrow 1812, and “Best Speed” 2001 and “Direction” 2002 are displayed above the center. “Best Speed” 2001 indicates the user's highest ever speed, and it can be seen that the highest speed is “62.23 (km / h)”. “Direction” 2002 shows the angle at the highest speed in the past, and it can be seen that the angle is “108 (°)”.

  Also, in the periphery of the polar diagram, four circular displays showing numerical values are displayed in the upper left side, upper right side, lower left side, and lower right side, respectively.

  On the upper left side of the drawing, "Speed" 2011, "Total Speed" 2012, "Direction" 2013, and "Total Direction" 2014 of the upwind VMG starboard tack of the selected day are displayed.

  “Speed” 2011 indicates the upward speed of the upwind VMG starboard tack on that day, and it can be seen that the speed is “23.87 (km / h)”. “Total Speed” 2012 indicates the cumulative upwind speed of the upwind VMG starboard tack, and it can be seen that the speed is “30.54 (km / h)”.

  “Direction” 2013 indicates the upward angle of the upwind VMG starboard tack of the day, and it can be seen that the angle is “45 (°)”. “Total Direction” 2014 shows the upward angle of the cumulative upwind VMG starboard tack, and it can be seen that the angle is “51 (°)”.

  As shown in FIG. 20, the value of the selected day is the value of the cumulative value by displaying the circle showing the cumulative value larger than the selected day value and displaying it on the outside. It is possible to give an image of being a part, and it is possible to intuitively grasp which is the cumulative value at the selected day value. Furthermore, it may be made clearer by changing the color of the circular border.

  On the upper right side of the drawing, "Speed" 2021, "Total Speed" 2022, "Direction" 2023, and "Total Direction" 2024 of the upwind VMG port tack of the selected day are displayed.

  On the lower left side of the drawing, "Speed" 2031, "Total Speed" 2032, "Direction" 2033, and "Total Direction" 2034 of the upwind VMG starboard tack of the selected day are displayed.

  On the lower right side of the drawing, "Speed" 2041, "Total Speed" 2042, "Direction" 2043, and "Total Direction" 2044 of the upwind VMG port tack of the selected day are displayed.

  Also, line 2004 shows the polar curve of the selected day, and line 2005 shows the cumulative polar curve. Also, an arrow 2006 indicates a vector of the highest speed in the past. Also, arrow 2015 indicates the upwind VMG starboard tack vector of the selected day, and arrow 2016 indicates the cumulative upwind VMG starboard tack vector. The length of the arrow indicates the velocity, and the direction in which the arrow points indicates the angle.

  Similarly, arrow 2025 indicates a vector of upwind VMG port tacks for the selected day, and arrow 2026 indicates a vector of cumulative upwind VMG port tacks. Also, arrow 2035 indicates the downwind VMG starboard tack vector of the selected day, and arrow 2036 indicates the cumulative downwind VMG starboard tack vector. Arrow 2045 indicates the downwind VMG port tack vector of the selected day, and arrow 2046 indicates the cumulative downwind VMG port tack vector.

  In this way, it can be used as a reference for grasping the characteristics of the user's way of riding in the wind direction (such as jealousy, goodness / not goodness).

  The "Active Days" 1701, the "Total Distance" 1702, and the "Your Best Top" 1703 in the upper column of the display screen display the same content as in Figs. A list 1721 of summaries of data for one day in the left column of the display screen, and a list 1722 of a plurality of summaries of practice in the data for one day are also similar to FIGS.

  The screen switching buttons “Summary” 1751, “Map” 1752, and “Polar Diagram” 1753 on the upper side of the main column of the display screen also have the same contents as those in FIGS. In FIG. 20, since a polar diagram is displayed, the display form (color) of “Polar Diagram” 1753 is different from “Summary” 1751 and “Map” 1752.

  As described above, it is possible to draw a polar curve from information acquired by the GPS (boat speed, direction), and to record what kind of tool and how to ride at that time.

  As a result, in contrast to conventional GPS products, which can only compare top speed and average speed, visualization can provide a visual and objective evaluation of sailing ability. This makes it possible to understand the factor of improvement. For example, it is possible to improve VMG and maximum speed with the same tool and wind speed. In addition, it can be confirmed that the method of riding has been improved. For example, it is possible to improve VMG and maximum speed with the same riding style and wind speed. In addition, it can be confirmed that improvement was achieved by tools.

(Application example 1 of map display)
FIG. 21 shows an application example of the display screen shown in FIG. 18 and shows display contents when one leg is selected. In FIG. 21, the left side column of the display screen displays a list 1721 of “Dates”, a list 1722 of “Practices”, and a list 2150 of “Legs”. This is a list of a plurality of legs in the selected practice because the practice is selected. Then, this screen is displayed by selecting one of the legs. In FIG. It indicates that one leg is selected. In “Legs” 2150, “S” indicates starboard tack and “P” indicates port tack.

  In FIG. 21, the speed display unit 2102 displays a time-series speed change of the selected leg as a line graph. Below the speed display unit 2102, a play button 2103, a fast forward button 2104 and a rewind button 2105 are displayed. Further, on the speed display unit 2102, a reproduction position display bar 2106 is displayed. Below the reproduction position display bar 2106, the time (“00:00:33”) at the reproduction position is displayed.

  When the play button 2103 is pressed, the play position display bar 2106 automatically moves from left to right. The moving speed may be adjusted to the recording time, and may be doubled or slowed. When the playback button 2103 is pressed again during the playback operation, pause (pause) may be performed. In this way, for example, the reproduction instruction can be given in the same sense as the operation of the DVD player.

  Also, with the movement of the reproduction position display bar 2106, the point 2107 of the map unit 2101 moves in synchronization with the reproduction position. That is, the point 2107 indicates the position of the windsurf 110 at the time (“00:00:33”) at the playback position. When the reproduction position display bar 2106 and the point 2107 have the same color (for example, green), the sense of synchronization can be further increased.

  In this way, the displayed log can be reproduced. Since automatic reproduction is possible, the user simply presses the reproduction button 2103 and no other operation is required, so the user is actually traveling (feeling the wind indicated by the arrow 2108). It is possible to concentrate on grasping the displayed content (tracing of traveling) while holding it.

  In the right column of the display screen, "Port / Starbord" 2111, a mast state display unit 2112, and a sail state display unit 2113 are displayed. "Port / Starbord" 2111 indicates the type of traveling data, that is, whether it is port tack or starboard tack. In FIG. 21, it can be seen that it is a starboard tack.

  The mast state display unit 2112 simulates the tilt of the mast 111 as viewed from above the windsurf 110. A frame 2114 indicates the range of movement of the mast 111. Thereby, the shake can be confirmed by the width or area. The shape of the frame is not limited to a rectangle, and may be an ellipse or the like. Further, the range of shake may be displayed as a numerical value (for example, the maximum value or the minimum value of shake). Therefore, it is intuitively understood that the narrower the range, the higher the stability.

  Also, a line 2115 shows the locus of movement of the tip portion of the mast 111 in the selected leg. A point 2116 indicates the tip position of the mast 111 synchronized with the playback position according to the movement of the playback position indication bar 2106. Since the staying positions of the mast 111 are superimposed and displayed, the higher the frequency, the darker the color. Also, the locus 2115 may be color-coded in the same manner as the locus on the map 2101. Also, the current state may be represented by a numerical value ([45, 25] 2117).

  Therefore, the point 2116 changes its display position along with the movement of the playback position display bar 2106. Therefore, the relationship between the velocity and the position of the mast 111 can be easily and surely grasped. That is, it can be easily known at what position of the mast 111 the maximum speed has been obtained.

  The sail state display unit 2113 simulates the state of rotation of the sail 113 as viewed from above the windsurf 110. In the sail state display unit 2113, the direction of the sail 113 is indicated by a line 2118 radially extended from the center. A line 2118 indicates the pivot position of the sail 113 synchronized with the playback position as the playback position display bar 2106 moves. Since the staying positions of the sails 113 are superimposed and displayed, the higher the frequency, the darker the color.

  A fan-shaped frame 2119 indicates the range of rotation of the sail 113. Also, the locus 2115 may be color-coded in the same manner as the locus on the map 2101. Also, the angle of the sail 113 may be indicated by a numerical value ([48 (°)]).

  As described above, since the mast state display unit 2112 and the sail state display unit 2113 can be simultaneously confirmed in time series, the behavior of the mast 111 and the sail 113 in the leg can be accurately grasped. Also, the relationship between the speed and the behavior of the mast 111 and the sail 113 can be understood.

(Application example 2 of map display)
FIG. 22 is a further application example of the application example 1 of the display screen shown in FIG. 21, and is a display content when one leg is selected. In FIG. 22, instead of displaying the mast state display unit 2112 and the sail state display unit 2113 that were displayed in FIG. 21, images of the entire model of the windsurf 110 viewed from three different angles are displayed. Other than that is the same as FIG.

  An image 2201 is an image (Front of View) when the windsurf 110 is viewed from the front, and displays a model 2211 of the windsurf 110. The model 2211 controls and displays the inclination according to the roll angle with the joint 112 (junction point of the mast 111 and the board portion 115) as an axis. Thereby, the inclination (left-right direction) of the mast 111 can be confirmed. The image is changed as the reproduction position display bar 2106 moves. Therefore, the relationship between the speed and the left and right positions of the mast 111 (the amount of kite (roll angle)) can be easily and surely grasped.

  Further, an indicator 2202 is displayed below the image 2201. The indicator 2202 moves left and right so that the bar 2212 indicates the left and right angles of the mast 111 in accordance with the reproduction position display bar 2106. The rightmost side is 90 ° and the leftmost side is -90 °. In addition, the color is overlapped by the movement of the bar 2212, and the staying time is displayed as the shade of the color. Thereby, if the width of the dark part is narrow and the color is dark, it can be judged that the position of the mast 111 is stable. On the contrary, if the width of the dark part is narrow and the color is light, the mast 111 It can be determined that the position of is not stable. Therefore, it is possible to intuitively grasp the behavior of the mast 111 (the skill of the surfer) and the like depending on the degree of shading of the color of the indicator 2202.

  An image 2203 is an image (Side of View) when the windsurf 110 is viewed from the side, and a model 2213 of the windsurf 110 is displayed. The model 2213 controls and displays the inclination according to the pitch angle with the joint 112 (junction point of the mast 111 and the board portion 115) as an axis. Thereby, the inclination (front-back direction) of the mast 111 can be confirmed.

  Further, the image 2203 may be an image viewed from the opposite side. Also, both images may be displayed at the same time, or both images may be tapped to switch. The image is changed as the reproduction position display bar 2106 moves. Therefore, the relationship between the speed and the position before and after the mast 111 (the amount of after reiki (pitch angle)) can be easily and surely grasped.

  Further, below the image 2203, an indicator 2204 similar to the indicator 2202 is displayed. The indicator 2204 moves to the left and right so that the bar 2212 indicates the anteroposterior angle of the mast 111 in accordance with the reproduction position display bar 2106. The rightmost side is 90 ° and the leftmost side is -90 °. In addition, the color is overlapped by the movement of the bar 2214, and the staying time is displayed in shades of color. Therefore, the behavior of the mast 111 and the like can be intuitively grasped depending on the degree of shading of the color of the indicator 2204.

  An image 2205 is an image (Top of View) when the windsurf 110 is viewed from above (above the sky), and displays a model 2215 of the windsurf 110. The model 2215 controls and displays the rotation according to the yaw angle about the joint 112 (the junction of the mast 111 and the board portion 115). Thereby, the pulling condition of the sail 113 can be confirmed. The image is changed as the reproduction position display bar 2106 moves. Therefore, the relationship between the speed and the rotational position (retraction condition (yaw angle)) of the sail 113 can be easily and surely grasped.

  Further, below the image 2205, an indicator 2206 similar to the indicators 2202 and 2204 is displayed. The indicator 2206 moves to the left and right so that the bar 2216 indicates the rotation angle of the sail 113 in accordance with the reproduction position display bar 2106. The far left is 0 ° (magnetic north), and the far right is 360 ° counterclockwise. In addition, the color is overlapped by the movement of the bar 2216, and the staying time is displayed in shades of color. Therefore, the behavior of the sail 113 and the like can be intuitively grasped depending on the degree of shading of the color of the indicator 2206.

  Then, three images 2201, 2203, and 2205 are simultaneously displayed so that the check viewpoint can be easily confirmed.

  Thus, the shake in the front, rear, left, and right directions of the mast 111 can be confirmed numerically, and the shake can be visually confirmed. In addition, it is possible to confirm the deviation of the pulling condition of the sail 113 numerically, and to confirm the deviation visually. You can objectively confirm what form you were riding. Furthermore, rather than displaying as a numerical value, the person or someone other than the person can understand the form more clearly by visual representation using the 3D model.

  Thus, conventionally, there is only camera shooting etc. to confirm the sailing form (specifically, the state of the tool is formed based on the human form), and at the same time, it is confirmed from the front, side, back and the sky There was no way to do it, and there was no information on the form of the digitization, but by visually and numerically confirming them, they can be realized, and how and how to improve the way of riding numerically You will be able to guide you on what is good.

(Application example 3 of map display)
FIG. 23 is a further application example of the application example 2 of the display screen shown in FIG. In FIG. 23, instead of displaying the image (Top of View) 2205 that was displayed in FIG.
An image (Back of View) 2301 is displayed, and a model 2311 of the windsurf 110 is displayed. Others are the same as FIG. The lower indicator 2206 of the image (Back of View) 2301 is also the same.

  An image (Back of View) 2301 is an image when the windsurf 110 is viewed from the upper surface (above the sky), and the pull-in condition of the sail 113 can be confirmed similarly to the image (Top of View) 2205. Further, similarly to the images 2201, 2203 and 2205 shown in FIG. 22, the image is changed along with the movement of the reproduction position display bar 2106. Therefore, the relationship between the speed and the rotational position (retraction) of the sail 113 can be easily and surely grasped.

  The image (Back of View) 2301 and the image (Top of View) 2205 may be switched by tapping the image. Alternatively, both may be displayed simultaneously, that is, four images 2201, 2203, 2205 and 2301 may be displayed simultaneously.

(Contents of Jive tacking analysis)
Next, the contents of the jive tacking analysis will be described. The points at which the jibe is evaluated are, for example, the amount of lowering (the direction of the board immediately before the stall), the amount of retraction, the timing, the sail operation during the turn, the timing of the sail return, the board escape direction, the turn time and the like. In addition, criteria for evaluation include less stall during a turn, high turn escape speed, and shorter turn time.

  Also, the points for evaluating tacking are the amount to be raised (the direction of the board immediately before the stall), the pulling amount, the timing, the sail operation during the turn, the sail return timing, the board escape direction, the turn time and the like. As described above, the evaluation points for jibe are the amount to be lowered, whereas the evaluation points for tacking are only the difference from the amount to be raised, and other evaluation items and evaluation criteria are both Is the same.

  Therefore, when performing the jibe recognition process (tacking recognition process), the following four are detected. FIG. 24 is a flowchart showing an example of the jibe recognition processing procedure.

(1) Detection of jibe is performed (step S2401). The entire riding data is scanned and jive patterns are matched and detected. Therefore, the recognition accuracy is improved by adding the operation of the sail as compared to the detection of only the GPS information. Tacking may also be performed in the same manner as jibe.

(2) A turn entry point is detected (step S2402). After detecting the jib, detect the point at which the speed stall has started, and let it be the "entry speed". At that time, let the board angle in the downwind direction from the beam line be the “advance angle”.

(3) The turn exit point is detected (step S2403). The lowest speed point in the jibe section is detected and taken as the "escape speed". At that time, the board angle in the downwind direction from the abeam line is referred to as "the escape angle". Tacking may also be performed in the same manner as jibe.

(4) The sail return is detected (step S2404). The point at which the yaw angle changes by 90 ° or more from the angle at which it enters is taken as the sail return point. In the case of tacking, the sail is not returned. In the case of tacking, a point at which the sail direction (YAW angle) exceeds the wind axis may be detected as a point on which the tack on the reverse side is shifted.

  In this way, jibe recognition is performed. Also in the case of tacking, the same recognition as that of the jibe may be performed. Then, the detected result is displayed on the jive analysis screen (step S2405). This completes the series of processing.

  FIG. 25 is an explanatory view (part 8) of the contents of the data display, showing an example of the jive analysis screen. In FIG. 25, the jive list 2501, the speed display unit 2502, and the map display unit 2503 are displayed on the jive analysis screen. Further, an image 2201 and a mast state display unit 2112 are also displayed. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe.

  Give list 2501 displays a list of main items of data per jive. By selecting desired jibe data from the jibe list 2501, the selected jibe data is displayed on the speed display unit 2502, the map display unit 2503, the image 2201, and the mast state display unit 2112. In FIG. 25, the jibe data of “Jibe1” is selected and displayed. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe.

  The speed display unit 2502 displays the speed of the jibe using a line graph 2511. A turn entry point 2512 and a turn exit point 2513 exist on the line graph 2511. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe.

  A play button 2103, a fast forward button 2104, and a rewind button 2105 are displayed below the speed display unit 2502. The play button 2103, the fast forward button 2104, and the rewind button 2105 are the same as the buttons shown in FIG.

  In the map display unit 2503, displays at entry 2511, before sail return 2512, after sail return 2513, and at exit 2514 are made at predetermined positions on the trajectory 2510 of the jibe. It is preferable that one side of one grid divided in a grid shape be about 10 m from the general turning radius of the jibe. Further, the display 2515 is moved at a position on the locus 2510 in response to the movement of the reproduction position display bar 2106 of the speed display unit 2502. In each of the displays 2511 to 2514, the amount of withdrawal of the sail is displayed as a circle and a line in the circle like a hand of an analog clock, and is also displayed by a numerical value.

  For example, when entering 2511, the line in the circle indicates the direction of 6 o'clock, and it can be seen that the amount of pulling in of the sail is "91 (°)". In addition, the pull-in amount of the sail is "89 (°)" while the pull-in amount of the sail is "259 (°)" while the pull-in amount of the sail is "259 (°)" and the sail is 180 °. It turns out that it has rotated.

  In the current display of 2515, the draw-in amount of the sail is displayed as a circle and a line within the circle, and also as a numerical value. However, the display of 2515 changes dynamically now.

  An image 2201 is an image (Front of View) when the windsurf 110 is viewed from the front, and displays a model 2211 of the windsurf 110. An image (Front of View) 2201 is the same as that shown in FIG. In the image 2201, a model 2211 of the windsurf 110 is displayed. The 3D display from the front makes it possible to confirm the inside diameter amount and the retraction amount of the mast 111 in the jibe. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe. Therefore, it is possible to confirm the inner diameter and the amount of retraction of the mast 111 during tacking.

  The mast state display unit 2112 simulates the state of the tilt of the mast 111 as viewed from above the windsurf 110, and is the same as that shown in FIG. This allows the movement of the mast to be visualized. Further, by displaying numerical values ([45, 25]), it is possible to grasp the movement of the mast 111 more accurately.

  Thus, the sail and mast movements can be simultaneously displayed according to the sequence of the jibe. In jibe, pull-in information can be displayed simultaneously according to a sequence, with sail being considered particularly important. Thereby, the relationship between the direction of the sail 113, the mast 111, and the board portion 115 and the speed can be simultaneously viewed. In addition, the mast operation can be visually confirmed as a numerical value. In addition, it is possible to confirm the timing of the sail return. This makes it easy to investigate the cause of failure or stall of the jibe. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe. This makes it easy to investigate the cause of failure or stalling of tacking.

  FIG. 26 is an explanatory view (part 9) of the contents of the data display, showing another example of the jive analysis screen. In FIG. 26, the jive analysis screen simultaneously displays two jive data. Therefore, two pieces of jive data overlap or shift in part. Since the difference with respect to the model is considered to be one of the causes of failure or stall, a clearer cause investigation can be performed by being able to compare and confirm both. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe.

  In the jib list 2501, two pieces of jibe data (numerical values) are displayed side by side. Further, in the speed display unit 2502, two line graphs indicating speeds are shown (graph of comparison subject (solid line) 2511 and graph of comparison target (broken line) 2611). It can be seen that the graph 2611 to be compared has less stall and is advanced. Although illustration is omitted, the tacking may be displayed in the same manner as the jibe.

  Also in the map display unit 2503, there are two trajectories (trajectory of comparison subject (solid line 2510), trajectory of comparison target (broken line) 2610). In addition, the display of the circle and the line of each display is also two lines (solid line and broken line), and the numerical value of the amount of retraction is also displayed.

  With regard to the image, either one of Front of View or Back of View may be displayed, or both of them may be displayed as in image 2631. The models in the image may be displayed superimposed.

  Similarly, the mast status display unit 2112 may display the status of the mast based on the two data so that the point of the comparison subject and the point of the comparison target are color-coded and arranged in the vicinity of each other.

  By configuring in this way, it is possible to easily compare the jive with the expert who is the model, and help to efficiently acquire the jive technique. With regard to tacking, as with jibe, it helps to efficiently learn tacking techniques.

  As described above, in the embodiment, the traveling direction of the windsurf 110 with respect to the velocity and the wind direction of the moving body at each position is calculated based on the position information by the GPS value of the windsurf 110, and the velocity and the traveling direction are A graph is displayed on the speed display unit 2102. In addition, a first mark 2106 indicating an arbitrary position of the graph is displayed, and a second mark 2107 is located at the position of the movement locus on the map in which the time is synchronized with the position of the graph in which the first mark 2106 is displayed. Display In addition, status information on the status of the moving object at each position is acquired by the 9-axis sensor 202, and status information in which the time and position of the graph where the first mark 2106 is displayed is synchronized is displayed on the status display unit 2112 or 2113 .

  By configuring in this way, it is possible to visually confirm the relationship between the speed, the traveling direction, the position on the map, the traveling state, and particularly the stability of the sail, obtain data by converting the form into data, From the data, it is possible to model the best form. As a result, it is possible to support efficient maneuvering and traveling, and improve the windsurfing maneuvering technology.

  In addition, based on the speed, traveling direction, and conditions, Jib, which is a turn around windward direction, is detected, and information on the jive (speed, trajectory, turn entry point and draw amount at that time, turn exit point, and the like) Since the amount of retraction, the sail return point and the amount of retraction at that time, etc. are simultaneously and sequentially displayed, it is possible to learn an efficient technique regarding the jibe. Tacking, which is a change of direction around windward, can also lead to efficient learning of technology, as with jibes.

  Although this embodiment has been described as windsurfing as a wind-powered mobile, it is not limited to this, and it may be a sailing one such as a yacht. Moreover, it is not limited to the mobile on water, and may sail on land.

  The display method described in the present embodiment can be realized by executing a prepared program on a computer such as a personal computer or a workstation. The display program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD (Compact Disc) -ROM, a MO (Magneto-Optical Disk), a DVD (Digital Versatile Disk), and a USB (Universal Serial Bus) memory. And read out from the recording medium by a computer. Also, the display program may be distributed via a network such as the Internet.

  The following appendices will be further disclosed regarding the embodiment described above.

(Supplementary Note 1) Obtain position information on the changing position of a moving object moving by wind power
Calculating the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions;
Acquiring state information related to the state of the mobile object based on the position information;
Based on the speed, the traveling direction, and the state, a turn around leeward is detected, a jib which is a turn around windward, or a tacking that is a turn around windward,
Display information about the jive or the tacking,
A display program causing a computer to execute a process.

(Supplementary Note 2) The display program according to Supplementary note 1, wherein a turning entry point of the jive or the tacking is detected based on the speed.

(Supplementary note 3) The display program according to Supplementary note 2, wherein a point in time when a stall of the speed starts is detected after the detection of the jibe or the tacking, and the point in time is determined as a turn entry point.

(Supplementary Note 4) The turn entry point is displayed,
Display information about the amount of sail retraction at the turn entry point,
The display program according to Additional remark 2 or 3, characterized in that.

(Additional remark 5) The display program as described in any one of additional remark 1-4 characterized by detecting the turn escape point of the said jive or the said tacking based on the said speed.

(Supplementary Note 6) The display program according to Supplementary note 5, wherein a time point of the lowest speed is detected during the jibe or the tacking, and the time point is determined as a turn exit point.

(Supplementary Note 7) The turn exit point is displayed,
Display information on the amount of pull in the sail at the turn exit point,
The display program according to Supplementary Note 5 or 6, characterized in that

(Additional remark 8) The display program as described in any one of additional remarks 1-7 which detect the sail return of the said jibe based on the said state.

(Supplementary note 9) The display program according to supplementary note 8, wherein a point in time when the yaw angle changes by 90 ° or more in the state is detected, and the point in time is determined as a sail return point.

(Supplementary note 10) The sail return point is displayed,
Display information on the amount of pull in the sail return point;
The display program according to appendix 8 or 9, characterized in that

(Supplementary note 11) A graph displays temporal changes in the velocity,
The display program according to any one of appendices 1 to 10, characterized in that

(Supplementary note 12) A first mark indicating an arbitrary position of the graph is displayed,
Displaying a second mark on the map synchronized in time with the position of the graph in which the first mark is displayed;
The display program according to appendix 11, characterized in that

(Supplementary note 13) The display program according to supplementary note 11 or 12, wherein the state information whose time is synchronized with the position of the graph in which the first mark indicating an arbitrary position of the graph is displayed is displayed.

(Supplementary note 14) The display program according to supplementary note 12 or 13, wherein the first mark is automatically moved along the time axis of the graph.

(Supplementary Note 15) The display program according to any one of supplementary notes 4, 7, and 10 to 14, wherein the plurality of data are displayed comparably.

(Supplementary note 16) The display program according to any one of supplementary notes 1 to 15, wherein the state information is information on the inclination of the mast of the mobile unit.

(Supplementary note 17) The display program according to any one of Supplementary notes 1 to 16, wherein the state information is information on a rotation angle of a sail of the moving body.

(Supplementary note 18) The display program according to any one of supplementary notes 1 to 17, wherein the position information is acquired by acquiring a GPS value.

(Supplementary note 19) The display program according to any one of supplementary notes 1 to 18, wherein the state information is acquired by acquiring a detection value by a 9-axis sensor.

(Supplementary note 20) A sailing training support program including the display program according to any one of supplementary notes 1 to 19.

(Supplementary note 21) Obtain position information on the changing position of a moving object moving by wind power,
Calculating the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions;
Acquiring state information related to the state of the mobile object based on the position information;
Based on the speed, the traveling direction, and the condition, a turn around leeward is detected, a jib which is a turn around windward, or a tacking which is a turn around windward,
Display information about the jive or the tacking,
A display method wherein a computer executes a process.

(Supplementary note 22) Obtain position information on the changing position of a moving object moving by wind power,
Calculating the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions;
Acquiring state information related to the state of the mobile object based on the position information;
Based on the speed, the traveling direction, and the condition, a turn around leeward is detected, a jib which is a turn around windward, or a tacking which is a turn around windward,
Display information about the jive or the tacking,
A display device comprising a control unit.

100 Sailing Training Support System 101 Sensor 102 Database 103 Display Device 104 Display 110 Windsurfing (Moving Object)
111 mast 113 sail 114 boom 115 board unit 202 9-axis sensor 1000 display screen 1001 acquisition unit 1002 data processing unit 1003 display control unit 1801, 1901, 2101, 2503 map unit 1802, 1902, 2102, 2502 speed display unit 1811, 1911, 2115, 2510 (movement) locus 1820, 1920, 2511 line graph 2106 playback position indication bar (first mark)
2107, 2515 points (second mark)
2112 mast status display unit 2113 sail status display units 2201, 2203, 2205, 2301, 2631 images 2211, 2213, 2215, 2311 (for windsurfing) model 2501 Jive list

Claims (17)

Obtain position information on the changing position of a moving body moving by wind power,
Calculating the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions;
Acquiring state information related to the state of the mobile object based on the position information;
Based on the speed, the traveling direction, and the condition, a turn around leeward is detected, a jib which is a turn around windward, or a tacking which is a turn around windward,
Display information about the jive or the tacking,
A display program causing a computer to execute a process.   The display program according to claim 1, wherein a turn entry point of the jibe or the tacking is detected based on the speed.   3. The display program according to claim 2, wherein after the detection of the jibe or the tacking, a point in time when a stall of the speed starts is detected, and the point in time is determined as a turn entry point. Display the turn entry point,
Display information about the amount of sail retraction at the turn entry point,
The display program according to claim 2 or 3, characterized in that:   The display program according to any one of claims 1 to 4, wherein a turn exit point of the jibe or the tacking is detected based on the speed.   The display program according to claim 5, characterized in that a time point of minimum speed is detected during the jibe or the tacking, and the time point is determined as a turn exit point. Display the exit point of the turn,
Display information on the amount of pull in the sail at the turn exit point,
The display program according to claim 5 or 6, characterized in that:   The display program according to any one of claims 1 to 7, wherein the return of the jibe is detected based on the state.   The display program according to claim 8, wherein a point in time when the yaw angle changes by 90 ° or more in the state is detected, and the point in time is judged as a sail return point. Display the sail return point,
Display information on the amount of pull in the sail return point;
The display program according to claim 8 or 9, characterized in that: Displaying a time-dependent change of the speed by a graph,
The display program as described in any one of the Claims 1-10 characterized by the above-mentioned. Displaying a first mark indicating an arbitrary position of the graph;
Displaying a second mark on the map synchronized in time with the position of the graph in which the first mark is displayed;
The display program according to claim 11, characterized in that:   13. The display program according to claim 11, wherein the state information whose time is synchronized with the position of the graph in which the first mark indicating the arbitrary position of the graph is displayed is displayed.   14. The display program according to claim 12, wherein the first mark is automatically moved along a time axis of the graph.   The display program according to any one of claims 4, 7, 10-14, wherein the plurality of data are displayed comparably. Obtain position information on the changing position of a moving body moving by wind power,
Calculating the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions;
Acquiring state information related to the state of the mobile object based on the position information;
Based on the speed, the traveling direction, and the condition, a turn around leeward is detected, a jib which is a turn around windward, or a tacking which is a turn around windward,
Display information about the jive or the tacking,
A display method wherein a computer executes a process. Obtain position information on the changing position of a moving body moving by wind power,
Calculating the velocity of the moving body at each of the positions and the traveling direction of the moving body with respect to the wind direction at each of the positions;
Acquiring state information related to the state of the mobile object based on the position information;
Based on the speed, the traveling direction, and the condition, a turn around leeward is detected, a jib which is a turn around windward, or a tacking which is a turn around windward,
Display information about the jive or the tacking,
A display device comprising a control unit.

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