WO2018043975A1 - Golf eyeglasses for assisting directional alignment, and method for operating same - Google Patents

Abstract

The present invention relates to golf eyeglasses, which assist in maintaining a posture that is exactly at right angles to the forward direction during the address stage of a golf swing, and a method for operating same. More particularly, the present invention relates to golf eyeglasses for assisting directional alignment, and a method for operating same, wherein, to keep a golfer at right angles during rotation, inertia measurement devices, such as a gyro sensor and an accelerometer, installed in the golf eyeglasses are used to calculate the rotation angle of the rotating golfer; and LEDs installed in the front left side and the front right side of the eyeglasses blink at a period proportional to the rotation angle so that the golfer can know the direction and rotation angle at which additional rotation should occur, thereby assisting the golfer in maintaining a posture that is exactly at a right angle. According to the golf eyeglasses for assisting directional alignment of the present invention, the direction can be accurately set during the address stage of a golf swing without a game assistant, and thus the golf eyeglasses have the effect of contributing to improvements in golf score.

Description

Orientation Alignment Golf Glasses and Its Operation Method

The present invention relates to a golf glasses and a method of operating the same to help the golf address to accurately posture at right and right angles, and more particularly, golfers using a golf ball by using an inertial measurement device such as a gyro sensor and an accelerometer installed in the golf glasses. When rotating so as to be perpendicular to the direction of travel, calculate the rotated angle, and blink the LEDs installed on the front left or front right of the glasses at a period proportional to the rotation angle to know the direction and rotation angle to be rotated further. The present invention relates to a golf course assisting direction glasses and a method of operating the same to assist in correcting the posture at right angles.

Mechanical gyros have been used primarily for attitude control of aircraft. In recent years, with the development of electronic and micromachining technology, MEMS (Micro Electro-Mechanical System) gyro and accelerometer have been developed and embedded in various information devices including smart phone, and calculated from MEMS gyro sensor with GPS (Global Positioning System) Various functions and applications using developed posture information have been developed.

Posture information is also usefully applied in sports. Especially, portable GPS equipment is widely used to obtain distance information in golf games.

However, in the game of golf, distance information and direction information are important. To this end, products worn on the waist using an inertial measurement unit (IMU) such as a synchronized gyro and an accelerometer have been developed. However, due to the limitation of wearing on the waist, it is necessary to use voice or vibration as a channel for transmitting information, and it is a method of notifying that the content is only aligned when it is finally aligned. More specifically, there are the following problems.

First, in order to hit the golf ball, the golfer first gazes at the front and presses the button to designate the forward direction.As the shaking occurs when the button is pressed, the gyro and the acceleration sensor built into the device are affected to generate an error in the posture information. Done.

Secondly, the user rotates at right angles when the user orients to hit the golf ball, and voice or vibration have a lot of limitations in transmitting the current state at a high speed. Finally, when the user orients at right angles, Only when it is actually within the specified range, the state is transmitted by voice or vibration. In this case, the vibration is inconvenient because it does not transmit the intermediate information that takes the direction, and the intermediate information can be transmitted by voice, but the inconvenience is not solved because the transmission speed is not sufficient. In particular, the voice becomes an undesired noise source in the surroundings, including accompanying players, which is a great limitation in its use.

In order to solve this inconvenience, glasses form that can convey information visually is the most ideal. At present, attempts have been made to apply products such as Google Glass to sporting goods as an augmented reality technology that superimposes the necessary information on glasses, but it is limited to use time for sports, large size, social rejection of other players when wearing There is a problem.

In addition, this augmented reality glass is a device that displays the graphic directly onto the glasses glass, such as hologram technology to shift the focus in order to recognize the graphic information projected on the glasses, which is the fundamental reason of dizziness in long-term use It is becoming. In golf, for example, it is necessary to wear a long time for more than 5 hours, and to adjust the focus at the subtle moment of hitting the ball.

Meanwhile. Golf is a game in which the golf ball must be sent exactly to the green or the hole. As shown in FIG. 1, in order to hit a golf ball, the golf ball is rotated in a direction 12 perpendicular to the forward direction 11 at the time of address, and then hits the golf ball.

In general, a person uses vision to orient, and there is almost no error when looking forward at an object in front of him, but looking at an object at the side to rotate his face to look at an object to get a 90 degree rotation. When you do, there is a big error due to the visual difference.

In a professional golf game, this problem is caused by the accompanying sports assistant (caddie) looking at the green or hole in the forward direction from the side of the golfer in the setup position. However, amateur golfers are generally not able to assist the game assistant (caddie), so very often hitting the golf ball in the wrong direction.

[Preceding technical literature]

[Non-Patent Documents]

(Non-Patent Document 0001) Grant Baldwin, Robert Mahony, Jochen Trumpf, Tarek Hamel & Thibault Cheviron, "Complementary filter design on the Special Euclidean group SE (3)," Control Conference (ECC), 2007 European

The technical problem to be solved by the present invention, the inertial measuring device sensor (IMU sensor) and the LED (LED), which can be easily obtained on the market without social objection, and obtained from the inertial measurement device sensor (IMU sensor) It is to provide a direction alignment golf glasses and its operation method that can calculate the rotation angle rotated from the forward direction in real time using the angular velocity and deliver it to the user visually and quickly and efficiently.

Orientation alignment assisting golf glasses according to the present invention for achieving the technical problem is the first and second LEDs respectively disposed on both sides of the front of the golf glasses; A left board and a right board disposed on the side legs of the golf glasses; And proximity sensors disposed on the left and right boards, respectively, wherein the left and right boards are connected to a flexible printed circuit board.

Operation method of the direction alignment assisting golf glasses according to the present invention for achieving the above technical problem, the user wearing the golf glasses recognizes that the forward direction when the hand is close to the proximity sensor in the state of looking at the front of the advancing direction of the ball step; The proximity sensor generates an interrupt (INT) to the main control unit (MCU) to change the main control unit (MCU) from the power saving mode to the operation mode, set the Z-axis rotation angle of the inertial measurement unit sensor to 0, Simultaneously blinking a first LED to inform the user that the command was correctly recognized; Recognizing the rotation direction when the user rotates about the Z axis to take the address posture to recognize the user as a left hand or right hand user, and stopping the first LED flashing on both sides; If the rotation angle does not reach a predetermined range when the user continues to rotate near 90 degrees, displaying the direction in which the first LED should be rotated and additionally required rotation amount; Turning off the first LED and turning on the second LED when the rotation angle reaches a predetermined predetermined range to inform the user that the address has been addressed in the correct direction; Recognizing when the user bends the waist at a predetermined angle to hit the ball and turns off the flashing second LED to indicate that the user is correctly positioned; Recognizing when the user hits the ball and the posture is restored (0 degrees) in the forward direction automatically enters a power saving mode.

According to the present invention, it is possible to produce a general form of golf glass without a sense of rejection. In detail, the error applied to the inertial measurement device sensor was removed during the control by using the proximity sensor, and the Z-axis rotation angle obtained from the inertial measurement device was displayed as a flashing period on the light-weight LED (LED) to recognize the golfer without changing the focus. As soon as possible, information can be communicated.

As a result, the golfer wearing the alignment aid golf glasses according to the present invention can help to improve the golf score by accurately aligning the golf address without the help of the competition assistant.

1 is a view for explaining a general golf address direction.

2 is a view showing the configuration of the golf glasses for assisting alignment in accordance with the present invention.

Figure 3 is a flow chart of the operation method of the alignment aid golf glasses according to the present invention.

4 to 6 is a view for explaining each step of the operation method of the alignment glasses assist golf glasses according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing the configuration of the golf glasses for assisting alignment in accordance with the present invention.

As illustrated in FIG. 2, the alignment aiding golf glasses according to the present invention includes first and second LEDs 21 and 22 disposed on both front sides of the golf glasses, and left sides of the golf glasses. A board and a right board and proximity sensors 23 and 24 disposed on the left and right boards, respectively, are provided, and the left and right boards are connected to the flexible printed circuit board 25.

In the following description, for example, the first LED is a red LED and the second LED is a blue LED, but the color can be freely changed.

In this case, an inertial measurement device sensor 26, a main controller and a low power Bluetooth communication unit (MCU / BLE) 27 are further disposed on the right board, and a charging device 28 and a rechargeable battery 29 are further disposed on the left board. .

The reason why the proximity sensor is installed in pairs on both the left and right sides is that the golfer is holding the golf club on one side of the left or right hand for the purpose of conveniently controlling the golf club without the golf club.

Golf alignment glasses for orientation alignment according to the present invention calculates the rotation angle rotated from the positive direction by using the rotation angle velocity obtained from the inertial measurement device sensor 26, the red LED or the blue LED according to the rotated angle Flashing the 21 and 22 allows the user to easily recognize the information about the direction in which the user should rotate and the amount of additional rotation.

Golf glasses must use vision to display information quickly and accurately, but methods should be devised without changing the focus, and must be very lightweight so as not to burden golf swings. In addition, the motion control should be a non-contact user interface with no adverse effect on the inertial measurement unit (IMU).

To this end, the present invention is a way in which the golfer can recognize the angle rotated from the forward direction to hit the golf address without changing the focus, and the light blue and red LEDs installed on the worn glasses in a suitable manner to visually display It is about a method.

3 is a flowchart illustrating a method of operating the alignment aid golf glasses according to the present invention, and FIGS. 4 to 6 are views for explaining each step of the operation method of the alignment aid golf glasses according to the present invention.

Referring to Figures 3 and 4 to 6 will be described the operation method of the golf glasses for assisting the direction alignment according to the present invention.

The operation method of the direction alignment assisting golf glasses according to the present invention includes the first step (S1) to the sixth step (S6).

First step (S1) is to move to the operation mode from the power saving mode of the initial state (S0) by the hand close to the proximity sensor located on the left and right eyeglass legs of the glasses 32 and recognize the forward direction that the golfer is going to hit (S1)

In the second step S2, after the first step S1, the Z axis rotation angle of the IMU sensor is initialized to 0 degrees and both LEDs blink at the same time to inform the golfer that the forward setting is completed. (S2)

In the third step S3, when the golfer initially rotates left or right about the Z axis to take an address posture after the second step S2 (33), the golfer recognizes the initial direction and recognizes that the user is a left or right hand user. (S3)

In the fourth step S4, after the third step S3, when the golfer continues to rotate in the right angle direction, the red LED installed on the left or right side of the glasses blinks to indicate the direction and the required rotation angle at the LED blink rate. (S4)

When the golfer enters the preset range (typically 1 degree) before and after the right angle (34) after the fourth step (S4), the fifth step (S5) turns off the red LED and turns on the blue LED to inform the golfer that the golfer has been rotated at the correct angle. Step (S5),

On the other hand, after the fifth step (S5) to recognize when the golfer bent at the waist at a predetermined angle to hit the ball to turn off the flashing blue LED to tell that the golfer has taken the correct position (S5) (S5) It may further comprise -1).

The sixth step (S6) is a step to enter the power saving mode of the initial state (S0) by recognizing the point of time when the Z-axis rotation angle is 0 degrees when the golfer hits the ball in the forward direction (35). )

On the other hand, the information obtained in each step may be selectively transmitted to the smart device (smart phone, smart watch) for other analysis by Bluetooth low energy (BLE) communication.

In the initial state, the inertial measurement unit sensor 26 and the main control unit (MCU) are in a power saving mode for power saving, and the proximity sensors 23 and 24 can recognize the proximity. Looking at the process of recognizing the direction for the user to hit the ball in the state of wearing the product as follows.

As shown in FIG. 4, after checking the direction 11 to be hit by the user visually, the user approaches the proximity sensor 23, 24 located on the left or right side in a position not moving for a while, and the proximity sensor 44. Recognizes this and generates an interrupt (INT) to the main control unit (MCU). The main controller (MCU) receiving the interrupt (INT) exits from the power saving state, sets the gyro sensor, the inertial measurement unit sensor 26, to the operation mode, sets the rotation angle of the Z (41) axis to 0 degrees, and sets X ( 42) The initial angle of rotation of the axis and the Y (43) axis uses the value calculated by Equation 1 below from the accelerometer measurement. In the present invention, as shown in FIG. 4, the front direction is defined by the x-axis, the right direction is defined by the y-axis and the downward direction z.

When an interrupt (INT) occurs to control the glasses without the use of a button, the accelerometer value is used to determine if the current position of the glasses is looking front, down, or up. If the glasses are looking in front, go into the operation mode, if you are looking down into the system management mode (software update), and if you are not moving from the top, go to the gyro calibration (calibration) mode and perform the specified tasks.

Where ψ represents the Z-axis rotation angle, φ represents the X-axis rotation angle, θ represents the Y-axis rotation angle, and g _x , g _y and g _z represent the accelerometer values.

Here, R (0) represents an initial rotational matrix used in Equation 2.

In order to inform the user that the glasses recognized the user's command, the red LEDs on both sides simultaneously flash to indicate that the hand gesture recognition and the inertial measurement unit (IMU) are set to the operation mode. After this step, when the golfer rotates to hit the ball, the gyro sensor measures the instantaneous angular velocity, and the rotation angle is obtained according to Equation 2 using the instantaneous angular velocity of the gyro sensor. Δt is the gyro sampling period.

Where ω _x , ω _y , and ω _z represent the gyro instantaneous angular velocity values.

R (t) is a rotational matrix representing the amount of rotation at time t, and r _ij represents an element of a 3 × 3 matrix.

Subsequently, as shown in FIG. 5, the right hand user starts the rotation 52 to the right and the left hand user starts the rotation 51 to the left. At this time, both red LEDs stop blinking (53), indicating that the glasses recognize the user's movement. It recognizes whether it is a right hand user or a left hand user by using the initial rotation direction.

If you are a right-handed user, when the amount of rotation is 90 degrees or less (54), the right red LED flashes, and when the amount of rotation exceeds 90 degrees (55), the left red LED flashes to indicate in which direction additional rotation or correction is required. By the same principle, for left-handed users, when the rotation amount is less than 90 degrees (54), when the left red LED flashes and when the rotation amount exceeds 90 degrees (55), the right red LED flashes and additional rotation and correction must be made in which direction. Tell me.

In both cases, as shown in FIG. 5 (C), the LED blink cycle occurs as a value proportional to the angle to be further rotated, so that the user can know how much further rotation to be made. In particular, when entering the specified error range near the right angle of about 1 degree (between 56 and 57), the red LED stops blinking and the blue LED blinks so that the user can easily recognize when the user is near the right angle. .

If the user corrects or corrects the direction based on the continuously blinking LED position and the blink cycle, a 90-degree alignment occurs easily. At this time, both blue LEDs blink simultaneously to inform the user that the alignment is 90 degrees. . Then, when the user bends the upper body to hit the ball, Equation 2 is used to calculate the angle to rotate on the y-axis. When the angle is within a predetermined range (for example, 45 degrees), the left and right blue LEDs stop blinking to indicate that the direction and posture are correct. Exceptionally, during the alignment process as described above, when the user cancels the direction alignment, the user may be restored 31 to the initial state S0 of FIG. 3 by bringing his or her hands closer to the proximity sensors 23 and 24 located on both sides.

With the 90 degree right angles aligned, the user makes a golf swing, looking in the direction of the ball flying naturally while in the finish position. In this process, as illustrated in FIG. 6, a time point 61 at which the Z-axis rotation angle of the IMU is zero is generated. The main control unit (MCU) recognizes the inertial measurement unit sensor to save power. When (IMU sensor) is set to the power saving mode, the main control unit (MCU) switches to the power saving mode that only the proximity sensors 23 and 24 can recognize and automatically returns to the initial state of FIG. 3 without further user control and continues. 3 can be used repeatedly.

In the above description, the technical idea of the present invention has been described with the accompanying drawings, which illustrate exemplary embodiments of the present invention by way of example and do not limit the present invention. In addition, it is apparent that any person having ordinary knowledge in the technical field to which the present invention belongs may make various modifications and imitations without departing from the scope of the technical idea of the present invention.

[Description of the code]

11: forward

12: right angle

21,22: Red and Blue LED Pairs

23,24: proximity sensor

26: Inertial Measurement Unit Sensor

27: MCU / BLE

28: charging device

29: rechargeable battery

31: Cancel alignment signal

32: proximity recognition

33: Initial rotation recognition

34: right angle alignment

35: Recognize that Z-axis rotation angle becomes 0

36: upper body waist angle recognition

41: Z axis rotation angle

42: X axis rotation angle

43: Y axis rotation angle

44: proximity recognition

51: Left hand user initial rotation angle

52: right hand user initial rotation angle

53: Both LEDs flash red before initial rotation angle

54: Right hand user right red LED blinks, Left hand user left red LED blinks

55: Right handed user left red LED blinks, Left handed user right red LED blinks

56,57: Both blue LED flashing sections

61: Z-axis rotation angle becomes zero

Claims (10)

In golf glasses, First and second LEDs respectively disposed on both sides of the front surface of the golf glasses; A left board and a right board disposed on the side legs of the golf glasses; And And proximity sensors disposed on the left board and the right board, respectively. The left side board and the right side board golf alignment glasses, characterized in that connected to the flexible printed circuit board. The method of claim 1 One of the left board and the right board further includes an inertial measurement device sensor, a main controller and a low power Bluetooth communication unit The other one of the left board and the right board, the direction alignment auxiliary golf glasses, characterized in that the charging device and the battery is further disposed. The method of claim 2 The rotation angle rotated from the forward direction is calculated by using the rotation angle velocity obtained from the inertial measurement device sensor, The first LED or the second LED flashes according to the rotated angle so that the user can easily recognize the information about the direction in which the user should rotate and the additional rotation amount. glasses. The method of claim 3 The rotation angle of the user is a golf glasses for direction alignment, characterized in that calculated by the following equation (1) and (2). [Equation 1]

Where ψ represents the Z-axis rotation angle, φ represents the X-axis rotation angle, θ represents the Y-axis rotation angle, and g _x , g _y and g _z represent the accelerometer values. [Equation 2]

Where ω _x , ω _y , and ω _z represent the gyro instantaneous angular velocity values. The method of claim 4 Recognizing that the user wearing the golf glasses is in the forward direction when the hand approaches the proximity sensor while looking at the front of the direction of the ball, The proximity sensor generates an interrupt (INT) to the main control unit (MCU) to change the main control unit (MCU) from the power saving mode to the operation mode, and set the Z-axis rotation angle of the sensor of the inertial measurement unit to 0, Simultaneously blinking the first LEDs on both sides to inform the user that the command was correctly recognized; Recognizing that the user is a left hand or right hand user when the initial rotation about the Z axis to the address posture to take the address posture, and stops the first LED flashing on both sides, If the rotation angle does not reach a predetermined range when the user continues to rotate near 90 degrees, the first LED blinks to indicate a direction in which the rotation should be performed and an additional required rotation amount, When the rotation angle reaches a predetermined predetermined range, the first LED is turned off and the second LED is turned on to inform the user that the address has been addressed in the correct direction. In order to hit the ball, the user recognizes an operation of bowing the upper body at a predetermined angle, thereby turning off the second LED, thereby informing that the user is finally in the correct direction and posture. Golf assist glasses for orientation alignment, characterized in that when the user hits the ball and the posture is restored to the forward direction (0 degrees) to automatically enter the power saving mode. Recognizing that the user wearing the golf glasses is in the forward direction when the hand approaches the proximity sensor in a state of looking at the front of the direction of the ball (S1); The proximity sensor generates an interrupt (INT) to the main control unit (MCU) to change the main control unit (MCU) from the power saving mode to the operation mode, set the Z-axis rotation angle of the inertial measurement unit sensor to 0, Simultaneously blinking a first LED to inform the user that the command was correctly recognized (S2); Recognizing the rotation direction when the initial rotation around the Z axis to the user to take the address posture to recognize that the user is a left hand or right hand and stops the first LED flashing on both sides (S3); If the rotation angle does not reach a predetermined range when the user continues to rotate near 90 degrees, displaying the direction in which the first LED is to be rotated and additionally required rotation amount (S4); Turning off the first LED and turning on the second LED when the rotation angle reaches a predetermined predetermined range (S5) to inform the user that the address has been addressed in the correct direction; Recognizing when the user hits the ball and the posture in the forward direction (0 degree) automatically enters the power saving mode (S6); operating method of the alignment aid golf glasses, comprising a. The method of claim 6 After the step S5 of informing the user that the user is addressed in the correct direction, the user recognizes when the user bends the waist at a predetermined angle to hit the ball, turns off the second LED which is blinking, and the user takes a correct posture. Notifying that the step (S5-1); Operation method of the alignment aid golf glasses further comprises. The method of claim 6 The rotation angle of the user is the operation method of the direction alignment assistance golf glasses, characterized in that calculated by the following equation (1) and (2). [Equation 1]

Where ψ represents the Z-axis rotation angle, φ represents the X-axis rotation angle, θ represents the Y-axis rotation angle, and g _x , g _y and g _z represent the accelerometer values. [Equation 2]

Where ω _x , ω _y , and ω _z represent the gyro instantaneous angular velocity values. The method of claim 8 The acquired information is a method of operating the alignment aid golf glasses further comprising the step of being transmitted to the user of the smart device via a Bluetooth low energy (BLE) Bluetooth low energy communication unit (BLE). The method of claim 6 When an interrupt (INT) is generated to perform an additional function without using a button, the accelerometer value is used to determine whether the current position of the golf glasses is looking at the front, the bottom, or the top. If you see the operation mode, if you see below the system management mode (software update), if you do not move from the top to the gyro calibration (calibration) mode to perform the specified tasks Operation method of golf glasses.

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