Patent ID: 7490020

Claim:
A system for controlling operations of a measuring machine, comprising a computer, a control card, a servo, and a raster ruler fixed on a movable arm of the measuring machine, the computer comprising: a checking unit configured for checking whether there are any faults before the movable arm starts to operate, and for alerting clearing any of the faults of the measuring machine; a restart unit configured for sending a restart instruction via the control card to the measuring machine for controlling the movable arm to return to an initial position in relation to an X-axis, a Y-axis, and a Z-axis directions; and an instruction sending unit configured for sending a move instruction comprising information of a final position to the measuring machine via the control card, for determining whether the final position exceeds a maximum distance of the movable arm, and for controlling the movable arm to move according to the move instruction if the final position does not exceed the maximum distance; and a calculating unit configured for calculating a current position of the movable arm according to a count tracked by the raster ruler, and for determining whether the movable arm is at the final position.