Control the layout of the company Shanghai engraving machine is generally divided into two categories. The first kind is controlled by computer and control planning itself is power drive. The decoy technology cannot work offline, which is the process of carving the computer can not get other typesetting work and may be caused by waste because of computer error. The second category is the controller itself control and drive. The carving machine can work offline, or once carved machine starts to work, the computer immediately to typesetting. This kind of situation theory to save a computer and reduced constituted by computer operation error rejection. This method greatly improves the work efficiency of the carving machine.