A Man And Manipulator's Chess-Playing System Achieved By Using Image Processing

Using image processing technology, serial communication technology,designing technology of VC++ program and technology of manipulator controlledby PLC, this paper designs and achieves a man and manipulator's face to facechess-playing system based on image processing. Whenever man moves one step ofhis chess, the chessboard information is sent to PC through an ordinary andlower-cost pick-up head. And after identifying where man has moved his chessthrough technology of image processing, PC calculates manipulator's next step bycalling chess-playing program prestored in computer, and passes it to PLC throughserial communication which controls manipulator's movement. Usingimage-processing device instead of conventional position sensor is the notablefeature of this system. The system uses the result of image processing as feedbacksignal of chess' positions and achieves the contactless measurement of positionsignal. And benefited from this feature, the cost of the system is greatly decreased.Firstly, through large quantity of experiments considering the cause ofchessboard's geometric distortion, the speed and precise of algorithm, we obtaineffective and high speed algorithm which successfully corrects the geometricdistortion with satisfying effect, and the algorithm is especially suitable to thissystem. And after that, using the color extraction algorithm, which can correctlyextract target signature without spending too much calculation, we achieve theidentification of red chess. Thinking of function, designing feature etc, we finishchoosing the type of hardware, give the schematic diagram for circuit of PLC andstepper motor and so achieve the design of hardware. And still we fulfill the designof software by using VC, the software includes image-processing module of host computer, serial communication module and controlling module of slave computerPLC.The using of image-processing technology in the inspection and recognition ofmanipulator's handling object adapts to the demand of modern industry, and it hasfavorable foreground in application and development. So this topic has importantresearch significance.