G - Physics – 05 – B
Patent
G - Physics
05
B
G05B 19/18 (2006.01) A63D 15/00 (2006.01) A63D 15/20 (2006.01) G05B 19/19 (2006.01) G05B 19/402 (2006.01)
Patent
CA 2520923
The present invention provides a method and apparatus for accurately positioning a robotic pool-playing device. The system comprises a computer controlled robotic positioning device, such as a gantry robot, that can position a cue over the pool table and place a shot. A global camera is mounted on the ceiling looking down at the table, and the acquired images are transmitted to the computer for analysis to determine the identity and locations of the balls within the table coordinate reference frame. The computer also automatically determines which ball to strike. An aspect of the invention is the use of a local camera, mounted on or near the robotic end-effector in a fixed relationship with the cue, to improve the positioning error of the robotic device prior to placing a shot. By comparing the ball locations perceived from the vantage of the local camera with the known ball locations determined from the global camera image, the invention can calculate the acquired robotic positioning error, which can then be corrected for prior to placing the shot.
Greenspan Michael
Hill & Schumacher
LandOfFree
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