This paper presents a 3DoF robot manipulator system which can play chess physically with human. The system consists of three main parts: a computer vision program written by Visual Studio to recognize chess moves, a chess program to choose the best move to response and a robot arm to perform chess move on a real chessboard. In this paper, the authors focus on analyzing mechanical design, methods to detect chess moves and algorithm applied to control the SCARA robot arm. Based on the design, a robot arm was manufactured and set up. Chess matches between robot and human were held to experiment the operation of robot arm as well as the result of the matches.
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