A table tennis table having a locking mechanism and a release mechanism is disclosed. The locking mechanism has a release handle located on the underside of a playing surface board adjacent to a central portion of the playing end. The release handle is connected to locking pins with Bowden cables. The locking pins are biased into recesses in an under frame to lock the table tennis table in the horizontal playing position or the vertical storage position.

An intelligent exercise bike includes a frame, and a front wheel and a rear motor wheel, wherein the frame is provided with a pedal motor electrically connected with the pedal, and the output shaft of the pedal motor is drivingly connected with the pedal; the pedal motor has a torque sensor and a Hall sensor that are electrically connected thereto for detecting the speed and force of the pedal; a bike controller is provided in the frame, and the torque sensor and the Hall sensor convert the detected pedal speed and force into transmission signals, and output them to the bike controller; the bike controller is connected to a power supply circuit of the rear motor wheel, and the bike controller outputs a control signal to adjust the output power value of the rear motor wheel after receiving the transmission signals.

An intelligent exercise bike includes a frame, and a front wheel and a rear motor wheel, wherein the frame is provided with a pedal motor electrically connected with the pedal, and the output shaft of the pedal motor is drivingly connected with the pedal; the pedal motor has a torque sensor and a Hall sensor that are electrically connected thereto for detecting the speed and force of the pedal; a bike controller is provided in the frame, and the torque sensor and the Hall sensor convert the detected pedal speed and force into transmission signals, and output them to the bike controller; the bike controller is connected to a power supply circuit of the rear motor wheel, and the bike controller outputs a control signal to adjust the output power value of the rear motor wheel after receiving the transmission signals.

An inflatable plyometric box having a first inflatable member adapted to be inflated to a pressure, a second inflatable member on top of the first inflatable member and adapted to be inflated to a pressure, and a connecting member connected to the first inflatable member and the second inflatable member which secures the first inflatable member to the second inflatable member. The first and second inflatable members incorporate drop stitch technology which provides substantial rigidity to first and second inflatable members when the first and second inflatable members are inflated to the pressures. Thus the inflatable plyometric box is substantially rigid to support a user landing on the top of the inflatable plyometric box. The inflatable plyometric box may include a stabilizing member which may be connected to the bottom of the inflatable plyometric box, wherein the stabilizing member is adapted to increase the stability of the inflatable plyometric box.

An inflatable plyometric box having a first inflatable member adapted to be inflated to a pressure, a second inflatable member on top of the first inflatable member and adapted to be inflated to a pressure, and a connecting member connected to the first inflatable member and the second inflatable member which secures the first inflatable member to the second inflatable member. The first and second inflatable members incorporate drop stitch technology which provides substantial rigidity to first and second inflatable members when the first and second inflatable members are inflated to the pressures. Thus the inflatable plyometric box is substantially rigid to support a user landing on the top of the inflatable plyometric box. The inflatable plyometric box may include a stabilizing member which may be connected to the bottom of the inflatable plyometric box, wherein the stabilizing member is adapted to increase the stability of the inflatable plyometric box.

A method for automatically recognizing a sport court according to the present invention includes: a step for acquiring an original image of the sport court as captured by a camera; a step for converting the acquired original image and generating a binarized image; a step for detecting lines forming the court from the binarized image; a step for adding virtual extension lines to the detected lines to compensate for missing lines, to thereby generate preliminary court lines; a step for comparing a pre-stored regulation size sport court template and the preliminary court lines; a step for correcting the preliminary court lines according to the comparison result; a step for labeling the corrected court lines; and a step for generating sport court information including labeling information.

A method for automatically recognizing a sport court according to the present invention includes: a step for acquiring an original image of the sport court as captured by a camera; a step for converting the acquired original image and generating a binarized image; a step for detecting lines forming the court from the binarized image; a step for adding virtual extension lines to the detected lines to compensate for missing lines, to thereby generate preliminary court lines; a step for comparing a pre-stored regulation size sport court template and the preliminary court lines; a step for correcting the preliminary court lines according to the comparison result; a step for labeling the corrected court lines; and a step for generating sport court information including labeling information.

A net deployment system is adapted to deploying a net around a desired area having a wall adjacent to a floor. The net deployment system has a first swing arm, pivotally attached to the wall and further attached to the wall with a first support cable. A second swing arm is pivotally attached to the wall and further attached to the wall with a second support cable. A plurality of net support cables join the first swing arm and the second swing arm. A net storage bag is attached to the first swing arm with a first frame cable. A second frame cable is attached to the first frame cable and further attached to the wall between the first frame cable and the second frame cable. A net is housed in the bag and connected to the plurality of set support cables. Pulling the first swing arm away from the wall by rotating the second swing arm lowers the net storage bag toward the floor and deploys the net.

A net deployment system is adapted to deploying a net around a desired area having a wall adjacent to a floor. The net deployment system has a first swing arm, pivotally attached to the wall and further attached to the wall with a first support cable. A second swing arm is pivotally attached to the wall and further attached to the wall with a second support cable. A plurality of net support cables join the first swing arm and the second swing arm. A net storage bag is attached to the first swing arm with a first frame cable. A second frame cable is attached to the first frame cable and further attached to the wall between the first frame cable and the second frame cable. A net is housed in the bag and connected to the plurality of set support cables. Pulling the first swing arm away from the wall by rotating the second swing arm lowers the net storage bag toward the floor and deploys the net.

The invention relates to a golf training device comprising an annular support with a hole for a golf ball is formed. The support being provided with a plurality of members angularly distributed with each member having an external ramp and an internal ramp. The ramps are arranged to have a stable state with the external ramp arranged in a plane of access to the hole. The internal ramp is arranged protruding around the hole, and a state constrained by the passage of the ball on the member wherein the internal ramp is lowered inside of the hole. The annular support has a plurality of feet which are angularly distributed between the members, each one of the feet having a lower ground support wall and an upper wall forming an access ramp to the hole.