Abstract: A golf simulator comprises a photosensor unit, an image input unit, a movement information calculation unit, a spin information calculation unit and a flight trajectory calculation unit. The photosensor unit detects a moving path of a golf ball by using a plurality of photosensors, the image input unit inputs movement images of the golf ball, the movement information calculation unit calculates a moving direction and speed of the golf ball from information acquired from the photosensor unit, the spin information calculation unit calculates a spin amount of the golf ball from the inputted images, and the flight trajectory calculation unit calculates a flight trajectory of the golf ball by using movement information and spin information. The speed and direction of a golf ball, and a spin of the golf ball are accurately measured by using a separate image input device to calculate a spin amount of the golf ball.

Abstract: A ball supply device where a ball is automatically supplied to a designated position is provided. The ball supply device includes a mat unit having an inclined surface and a hole, where a ball provided along the inclined surface is positioned; a tee member lifted up and down along an axial line of the hole in the mat unit and moving the ball positioned in the hole to a tee shot position at a spot that is upwardly spaced from a plane of the mat unit; a loading unit located on a plane lower than the mat unit and moving the ball loaded thereon to the mat unit; and a feeding member positioned between the loading unit and the mat unit and providing balls, which are provided from the loading unit one by one, to the inclined surface of the mat unit by performing a swing motion within a range.

Abstract: A system and method for measuring golf ball striking information includes a floor sensor array for detecting the space velocity and position of a golf ball or detecting the speed of a club head and the trajectory of a circle drawn by the club head; a floor light source emission array for emitting a light source to the floor sensor array from a position corresponding to the floor sensor array; a horizontal sensor array for detecting the entry angle and speed of the club head by left-handed hitting or right-handed hitting; and a horizontal light source emission array for emitting a light source to the horizontal floor sensor array from a position corresponding to the horizontal sensor array.

Abstract: An eight-directional controlled dynamic plate based on one-point allows a central portion of a forward side of the dynamic plate with feet of the golfer being positioned thereon to be connected in one-point to the swing plate body, and the dynamic plate to be inclined in eight directions including a forward, a rearward, a leftward, and a rightward direction and four edge directions, so that the dynamic plate is to be positioned corresponding to an inclination surface and an inclination angle of actual outdoor golf course.

Abstract: A ball supply device where a ball is automatically supplied to a designated position is provided. The ball supply device includes a mat unit having an inclined surface and a hole, where a ball provided along the inclined surface is positioned; a tee member lifted up and down along an axial line of the hole in the mat unit and moving the ball positioned in the hole to a tee shot position at a spot that is upwardly spaced from a plane of the mat unit; a loading unit located on a plane lower than the mat unit and moving the ball loaded thereon to the mat unit; and a feeding member positioned between the loading unit and the mat unit and providing balls, which are provided from the loading unit one by one, to the inclined surface of the mat unit by performing a swing motion within a range.

Abstract: A system synchronizing video and sensor signals includes: a camera acquiring a video signal; a sensor having first synchronization clock, generating a sensor signal corresponding to the video signal, adding, to the sensor signal, acquisition time from the first synchronization clock; a controller having second synchronization clock, controlling to receive the sensor signal with the acquisition time and transmit it to a computer, obtaining cumulative number of acquisition for video signals from the camera, adding the acquisition time from the second synchronization clock to number of acquisition and transmitting the number for analysis for verifying the synchronization; a synchronizer having reference clock and transmitting reference time for synchronization of first and second synchronization clocks to the sensor and the controller; and the computer receiving the sensor signal including acquisition time from the controller and the video signal to check time information and reconstructing the signals in the sa

Abstract: A system synchronizing video and sensor signals includes: a camera with first synchronization clock, acquiring the video signal, adding acquisition time of first synchronization clock to the video signal; a sensor with second synchronization clock, generating the sensor signal corresponding to the video signal according to sensing operation, adding acquisition time of second synchronization clock to the sensor signal; a controller controlling to receive the sensor signal added with the acquisition time from the sensor and transmit the sensor signal to a computer; a synchronizer with reference clock, transmitting reference time for synchronizing the first and second synchronization clocks to the camera and the sensor; and a computer receiving the sensor signal added with the acquisition time from the controller, receiving the video signal added with the acquisition time from the camera, confirming the acquisition time of the signals, reconfiguring the signals in the same time zone, synchronizing the signals.

Abstract: A screen golf system is provided, which includes: a strike position sensor placed on a ground where the golf ball is placed and configured to sense a ground strike position when the golf club hits the golf ball and a ground near the golf ball and to output the sensed ground strike position in a form of a ground strike position signal; a strike force sensor configured to sense ground strike force when the golf club hits the golf ball and the ground near the golf ball and to output the sensed ground strike force in a form of a ground strike force signal; and an output device configured to receive the ground strike position signal and the ground strike force signal and to output a striking state, including the ground strike position and ground strike force of the golf club.

Abstract: A sensing system for providing an entering angle, a space velocity and a hitting point to a golf simulation system is provided, in which a club head sensing part and a horizontal sensing part horizontal with a bottom surface are disposed at a position that the club head swung by a golf practicer is entered, so as to sense shadow information of the club head, thereby obtaining the entering angle, the space velocity and the hitting point of the club head.

Abstract: An eight-directional controlled dynamic plate based on one-point allows a central portion of a forward side of the dynamic plate with feet of the golfer being positioned thereon to be connected in one-point to the swing plate body, and the dynamic plate to be inclined in eight directions including a forward, a rearward, a leftward, and a rightward direction and four edge directions, so that the dynamic plate is to be positioned corresponding to an inclination surface and an inclination angle of actual outdoor golf course.

Abstract: The present invention relates to a method and a system for providing ball information in screen golf to display not only the start/stop points of a ball but also the ball's route and the competition state in more detail. The invention comprises a wired/wireless terminal and a competition-results providing server. The wired/wireless terminal prepared in a place that provides a virtual golf course environment detects the coordinates and route of a ball depending on a golfer's shot and indicates the coordinates and the route on a stored map image according to preset conditions so that a golfer may confirm the ball's route and the competition state. In addition, the wired/wireless terminal transmits to the competition results server the competition information recognized during the golf competition with the correspondent golfer's information.