With the development of science technology in aerospace, automobile and ship, energy and military, the product parts space type face increasingly complex and surface quality requirements more stringent. So there are higher requirements to the digital manufacturing equipment to realize high speed and high precision machining. This paper summary the related research in condition monitoring, remote control, fault diagnosis and intelligent maintenance, and based on the lack of monitoring and diagnosis technology of whole life cycle, unperfected quality control technique, the lower intelligent level in the current equipment, it establish full range monitoring and the whole life cycle of the intelligent maintenance system and present fault diagnosis, control and maintenance solutions for the whole life cycle, and point out the new development direction of the integrated monitoring and intelligent maintenance in CNC equipment.

Based on motion control card, it analyzed the methods and principles of the workpiece coordinate construction used the G54; created the G54 function modules, embedded CNC system of independent research and development and improved the system functions, processing efficiency and quality. The method described in the article can be directly applied to the machine tools controlled by numerical control system based on the card, and had a high practical value to the establish of other CNC machine tool workpiece coordinate system.