An arena includes a porous surface through which an airflow is output, thereby providing lift for an unmanned aerial vehicle (UAV) to push the UAV away from the porous surface. The airflow may also provide thrust to push the UAV in a direction that is parallel to the porous surface. The UAV may include one or more propellers that can provide lift, thrust, or both to the UAV. The airflow may be modified over a duration of time to modify lift or thrust to the UAV. The airflow may be modified based on regions of the arena to modify lift or thrust in different regions of the arena. The arena may include a scoreboard to display a score that may be modified as a result of actions undertaken by the UAV. Two or more UAVs may be used to play a game via the arena.

The disclosure refers to a control device and method for an intelligent basketball shooting machine, the device includes a control module, a blue-tooth communication module, a display module, a control switch, a power-supplying module, and a first sensor and a second sensor both for counting; the first sensor is used for catching amount of goals in one basket of basketball shooting machine, and the second sensor used for catching amount of goals in another basket of basketball shooting machine; the first sensor, second sensor, blue-tooth communication module, display module, control switch and power-supplying module are respectively connected with control module; the disclosure makes the basketball shooting machine go on single game or online game, besides, the player can play the shooting game with friends by remote way just through an intelligent terminal, which increases interest and convenience.

An arena includes a porous surface through which an airflow is output, thereby providing lift for an unmanned aerial vehicle (UAV) to push the UAV away from the porous surface. The airflow may also provide thrust to push the UAV in a direction that is parallel to the porous surface. The UAV may include one or more propellers that can provide lift, thrust, or both to the UAV. The airflow may be modified over a duration of time to modify lift or thrust to the UAV. The airflow may be modified based on regions of the arena to modify lift or thrust in different regions of the arena. The arena may include a scoreboard to display a score that may be modified as a result of actions undertaken by the UAV. Two or more UAVs may be used to play a game via the arena.

An arena includes a porous surface through which an airflow is output, thereby providing lift for an unmanned aerial vehicle (UAV) to push the UAV away from the porous surface. The airflow may also provide thrust to push the UAV in a direction that is parallel to the porous surface. The UAV may include one or more propellers that can provide lift, thrust, or both to the UAV. The airflow may be modified over a duration of time to modify lift or thrust to the UAV. The airflow may be modified based on regions of the arena to modify lift or thrust in different regions of the arena. The arena may include a scoreboard to display a score that may be modified as a result of actions undertaken by the UAV. Two or more UAVs may be used to play a game via the arena.

A striking device features an attachment mechanism releasably coupled to a length of cord for suspension of the device from an upper support. Featured along the cord is a mechanism for height adjustment, designed for insertion and removal from within the interior of a hollow striking object. The striking object remains attached to the height adjustment mechanism when struck, but is quickly detached by application of a force downward upon the top of the striking object. The entire device is designed for rapid assembly and disassembly and such that it is suitable for use within a home with lesser space requirements than other training devices on the market.

A table includes a table surface, a border, and an underside. A planar game board is disposed within the table, wherein the planar surface includes a plurality of scoring targets and a plurality of zones marked thereon. A simulated American football field piece is secured to the planar game board, so that playing pieces may pass underneath, across, over, or above the planar surface and simulated American football field piece. Play-indicating mechanisms are attached to the table. The play-indicating mechanisms are each configured to indicate one of a plurality of play options.

Virtual golf system for playing golf, comprising a plurality of trackable golf balls, wherein each golf ball comprises transmitting means for broadcasting electromagnetic beacon signals for detecting a position of the golf ball, a position determination unit comprising three receiving antenna's arranged for receiving beacon signals broadcasted by any of said plurality of trackable golf balls, and wherein said position determination unit is arranged to determine a position of said golf ball on a driving range based on time differences of a broadcasted beacon signal received by said receiving antenna's. A plurality of trackable golf balls and a plurality of players may be active at the same time. Trackable golf balls may be paired with specific players. A game controller advances a virtual game of golf each time a trackable golf ball is stroked by a player.